Subject Index Volumes 77–78

Subject Index Volumes 77–78

Microchemical Journal 78 (2004) 231 – 237 www.elsevier.com/locate/microc Subject Index Volumes 77–78 AAS Organically modified silica gel and flame at...

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Microchemical Journal 78 (2004) 231 – 237 www.elsevier.com/locate/microc

Subject Index Volumes 77–78 AAS Organically modified silica gel and flame atomic absorption spectrometry: employment for separation and preconcentration of nine trace heavy metals for their determination in natural aqueous systems (78) 143 Acids Use of iridium plus rhodium as permanent modifier to determine As, Cd and Pb in acids and ethanol by electrothermal atomic absorption spectrometry (77) 151 Activated carbon Application of activated carbon in the characterization of nitrogen compounds and phthalates in a landfill leachate (78) 61 Adsorptive anodic stripping voltammetry Voltammetric assay of rifampicin and isoniazid drugs, separately and combined in bulk, pharmaceutical formulations and human serum at a carbon paste electrode (77) 53 Adulteration A novel strategy to verification of adulteration in alcoholic beverages based on Schlieren effect measurements and chemometric techniques (78) 27 Air sampling Spectrofluorimetric determination of formaldehyde in air after collection onto silica cartridges coated with Fluoral P (78) 15 Alcohols Use of iridium plus rhodium as permanent modifier to determine As, Cd and Pb in acids and ethanol by electrothermal atomic absorption spectrometry (77) 151 AmCl Flow injection potentiometric determination of amitriptyline hydrochloride (78) 107 2-Aminophenylporphyrin Modified glassy carbon electrode by electropolymerization of tetrakis(2-aminopheny)porphyrin for the determination of norepinephrine in the presence of ascorbic acid (78) 181 Ammonium determination Deleterious effect of ammonium extraction from soil assisted by ultrasound (78) 41 Am-PMA Flow injection potentiometric determination of amitriptyline hydrochloride (78) 107 Am-PTA Flow injection potentiometric determination of amitriptyline hydrochloride (78) 107 Analytical chemistry Research on analytical chemistry in Brazil: an overview (77) 101 Anodic stripping voltammetry Simultaneous determination of copper and lead in ethanol fuel by anodic stripping voltammetry (77) 157 Arsenic Determination of arsenic in dinosaur skeleton fossils by hydride generation atomic fluorescence spectrometry (77) 29 Ascorbic acid A Prussian blue-based flow-through renewable surface optosensor for analysis of ascorbic acid (78) 157

doi:10.1016/S0026-265X(04)00145-6

Assay Voltammetric assay of rifampicin and isoniazid drugs, separately and combined in bulk, pharmaceutical formulations and human serum at a carbon paste electrode (77) 53 Asphaltene Electrothermal atomic absorption spectrometric method for the determination of vanadium in diesel and asphaltene prepared as detergentless microemulsions (78) 21 Atmospheric pollution Short-term and spatial variation of selected metals in the atmosphere of Nitero´i City, Brazil (78) 85 Atomic fluorescence spectrometry Determination of arsenic in dinosaur skeleton fossils by hydride generation atomic fluorescence spectrometry (77) 29 Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy Multicommutation ATR-FTIR: determination of sodium alpha-olefin sulfonate in detergent formulations (78) 47 Automation An automated system for preconcentration/matrix-removal followed by ICP-MS determination of organic phosphorus in oil production water (78) 65 Axially viewed plasma Evaluation of inductively coupled plasma optical emission spectrometers with axial configuration: interfaces with end-on gas and shear gas (77) 185 8-Azaguanine Electrochemical determination of 8-azaguanine in human urine at a multi-carbon nanotubes modified electrode (77) 37 Bead Injection Spectroscopy A Prussian blue-based flow-through renewable surface optosensor for analysis of ascorbic acid (78) 157 Beverages A novel strategy to verification of adulteration in alcoholic beverages based on Schlieren effect measurements and chemometric techniques (78) 27 Biamperometry A flow injection method for biamperometric determination of dipyrone in pharmaceuticals (78) 91 Binding sites Sorption and partitioning parameters of benzotriazole compounds (77) 9 Biological fluids Evaluation of a spectrofluorimetric method for the selective determination of thalidomide in pharmaceutical tablets, urine and blood serum (77) 1 Determination of B in body fluids by isotope dilution inductively coupled mass spectrometry with direct injection nebulization (77) 119 Boron-doped diamond (BDD) electrode Electroanalysis of myoglobin and hemoglobin with a boron-doped diamond electrode (78) 217 Boron isotope ratios Determination of B in body fluids by isotope dilution inductively coupled mass spectrometry with direct injection nebulization (77) 119

232

Subject Index Volumes 77–78

Cadmium Preliminary evaluation of the cadmium concentration in seawater of the Salvador City, Brazil (78) 77 Capillary columns Two decades of high temperature gas chromatography (1983–2003): what’s next? (77) 141 Capillary electrophoresis Trace level determination of substance P using capillary electrophoresis and laser-induced fluorescence (78) 135 Carbon nanotubes Electrochemical determination of 8-azaguanine in human urine at a multi-carbon nanotubes modified electrode (77) 37 Carbonaceous aerosols Measurement of carbonaceous aerosols: validation of a thermal gravimetric method and its comparison with a thermal optical transmittance method (77) 63 Catalytic hydrogen wave Study and application of parallel catalytic hydrogen wave of lincomycin in the presence of persulfate (77) 23 Characterisation Use of modified rice husks as a natural solid adsorbent of trace metals: characterisation and development of an on-line preconcentration system for cadmium and lead determination by FAAS (77) 161 Chromium Evaluation of electrodeposited tungsten chemical modifier for direct determination of chromium in urine by ETAAS (78) 7 Chromotropic acid Spectrophotometric determination of formaldehyde with chromotropic acid in phosphoric acid medium assisted by microwave oven (77) 47 Ciprofloxacin Solid-phase UV spectrophotometric method for determination of ciprofloxacin (77) 79 Copper Simultaneous determination of copper and lead in ethanol fuel by anodic stripping voltammetry (77) 157 Copper concentrate Determination of Hg from Cu concentrates by X-ray fluorescence through preconcentration on polyurethane foam (78) 1 Copper detection Electrochemical detection of Cu(I) and Cu(II) in styrene media (77) 85 Copper determination Determination of copper in medicinal plants used as dietary supplements by atomic absorption spectrometry with direct flame solid analysis (77) 113 Copper(II) hexacyanoferrate(III) Voltammetric determination of isoprenaline in pharmaceutical preparations using a copper(II) hexacyanoferrate(III) modified carbon paste electrode (78) 55 Correlations Correlation of mercury concentrations in tree core and lichen samples in southeastern Louisiana (78) 205 Cotton Use of cotton as a sorbent for on-line precolumn enrichment of polycyclic aromatic hydrocarbons in waters prior to liquid chromatography determination (77) 19 Criteria Computer-assisted optimization of reversed-phase HPLC isocratic separation of neutral compounds (78) 99 Cyclic voltammetry Study and application of parallel catalytic hydrogen wave of lincomycin in the presence of persulfate (77) 23 Modified glassy carbon electrode by electropolymerization of tetrakis(2-aminopheny)porphyrin for the determination of norepinephrine in the presence of ascorbic acid (78) 181 Electroanalysis of myoglobin and hemoglobin with a boron-doped diamond electrode (78) 217

Degradation Elucidation of methyl tert-butyl ether degradation with Fes2+/ H2O2 by purge-and-trap gas chromatography-mass spectrometry (77) 71 Deoxynivalenol Simultaneous detection of A and B trichothecenes by gas chromatography with flame ionization or mass selective detection (78) 211 Detergent analysis Multicommutation ATR-FTIR: determination of sodium alpha-olefin sulfonate in detergent formulations (78) 47 Detergentless microemulsion Electrothermal atomic absorption spectrometric method for the determination of vanadium in diesel and asphaltene prepared as detergentless microemulsions (78) 21 Determination of trace heavy metals Organically modified silica gel and flame atomic absorption spectrometry: employment for separation and preconcentration of nine trace heavy metals for their determination in natural aqueous systems (78) 143 Diacetoxy-scirpenol Simultaneous detection of A and B trichothecenes by gas chromatography with flame ionization or mass selective detection (78) 211 Diamond electrodes Electroanalytical and chromatographic determination of pentachlorophenol and related molecules in a contaminated soil: a real case example (77) 177 Diesel Electrothermal atomic absorption spectrometric method for the determination of vanadium in diesel and asphaltene prepared as detergentless microemulsions (78) 21 Dietary supplements Determination of copper in medicinal plants used as dietary supplements by atomic absorption spectrometry with direct flame solid analysis (77) 113 Dinosaur fossil Determination of arsenic in dinosaur skeleton fossils by hydride generation atomic fluorescence spectrometry (77) 29 Dipyrone A flow injection method for biamperometric determination of dipyrone in pharmaceuticals (78) 91 Direct solid analysis Determination of copper in medicinal plants used as dietary supplements by atomic absorption spectrometry with direct flame solid analysis (77) 113 Distribution Distribution and speciation of selenium in Lecythis ollaria plant (78) (77) 195 Effluents Focussed microwave-assisted sample preparation: total phenol determination in petroleum refinery effluents by flow injection spectrophotometry (78) 35 Electroanalysis Electroanalytical and chromatographic determination of pentachlorophenol and related molecules in a contaminated soil: a real case example (77) 177 Electrothermal atomic absorption spectrometry Use of iridium plus rhodium as permanent modifier to determine As, Cd and Pb in acids and ethanol by electrothermal atomic absorption spectrometry (77) 151 Electrothermal vaporization Analytical evaluation of electrothermal vaporization/low-pressure inductively coupled plasma atomic emission spectrometry for trace elemental analysis in microliter samples (78) 127 Elemental carbon (EC) Measurement of carbonaceous aerosols: validation of a thermal gravimetric method and its comparison with a thermal optical transmittance method (77) 63

Subject Index Volumes 77–78 End-on gas Evaluation of inductively coupled plasma optical emission spectrometers with axial configuration: interfaces with end-on gas and shear gas (77) 185 Environmental pollution Short-term and spatial variation of selected metals in the atmosphere of Nitero´i City, Brazil (78) 85 ETAAS Electrothermal atomic absorption spectrometric method for the determination of vanadium in diesel and asphaltene prepared as detergentless microemulsions (78) 21 Ethanol fuel Simultaneous determination of copper and lead in ethanol fuel by anodic stripping voltammetry (77) 157 FIA A novel strategy to verification of adulteration in alcoholic beverages based on Schlieren effect measurements and chemometric techniques (78) 27 Flame atomic absorption spectrometry Determination of copper in medicinal plants used as dietary supplements by atomic absorption spectrometry with direct flame solid analysis (77) 113 Use of modified rice husks as a natural solid adsorbent of trace metals: characterisation and development of an on-line preconcentration system for cadmium and lead determination by FAAS (77) 163 Flow analysis Automatic flow procedure for the determination of glycerol in wine using enzymatic reaction and spectrophotometry (77) 107 Optimization of sample preparation using statistical methods: spectrophotometric determination of Fe and Co in pharmaceutical samples (78) 187 Flow Injection Analysis A Prussian blue-based flow-through renewable surface optosensor for analysis of ascorbic acid (78) 157 Flow injection analysis Focussed microwave-assisted sample preparation: total phenol determination in petroleum refinery effluents by flow injection spectrophotometry (78) 35 Flow-injection method A flow injection method for biamperometric determination of dipyrone in pharmaceuticals (78) 91 Focussed microwave-assisted distillation Focussed microwave-assisted sample preparation: total phenol determination in petroleum refinery effluents by flow injection spectrophotometry (78) 35 Formaldehyde Spectrophotometric determination of formaldehyde with chromotropic acid in phosphoric acid medium assisted by microwave oven (77) 47 Spectrofluorimetric determination of formaldehyde in air after collection onto silica cartridges coated with Fluoral P (78) 15 5-Formyl-3-(1V-carboxyphenylazo) salicylic acid silica gel (FCPASASG) adsorbent Organically modified silica gel and flame atomic absorption spectrometry: employment for separation and preconcentration of nine trace heavy metals for their determination in natural aqueous systems (78) 143 Gas chromatography N,N-dimethyl-trimethylsilyl-carbamate as a derivatizing agent in gas chromatography of trichothecene mycotoxins (77) 43 Gas chromatography of high molecular mass substances Two decades of high temperature gas chromatography (1983–2003): what’s next? (77) 141 GC–MSD Application of activated carbon in the characterization of nitrogen compounds and phthalates in a landfill leachate (78) 61

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Glycerol Automatic flow procedure for the determination of glycerol in wine using enzymatic reaction and spectrophotometry (77) 107 Glycerol dehydrogenase Automatic flow procedure for the determination of glycerol in wine using enzymatic reaction and spectrophotometry (77) 107 Glycosidic flavonoids Two decades of high temperature gas chromatography (1983–2003): what’s next? (77) 141 Graphite furnace atomic absorption spectrometry Method development for the determination of nickel in petroleum using line-source and high-resolution continuum-source graphite furnace atomic absorption spectrometry (77) 131 Heavy metals Short-term and spatial variation of selected metals in the atmosphere of Nitero´i City, Brazil (78) 85 Hemoglobin Electroanalysis of myoglobin and hemoglobin with a boron-doped diamond electrode (78) 217 High-performance liquid chromatography Computer-assisted optimization of reversed-phase HPLC isocratic separation of neutral compounds (77) 99 Immobilized polysiloxanes as stationary phases for high-performance liquid chromatography and solid phase extraction (77) 191 High-resolution continuum-source AAS Method development for the determination of nickel in petroleum using line-source and high-resolution continuum-source graphite furnace atomic absorption spectrometry (77) 131 High resolution gas chromatography Two decades of high temperature gas chromatography (1983–2003): what’s next? (77) 141 Human serum Voltammetric assay of rifampicin and isoniazid drugs, separately and combined in bulk, pharmaceutical formulations and human serum at a carbon paste electrode (77) 53 Hydride generation Determination of arsenic in dinosaur skeleton fossils by hydride generation atomic fluorescence spectrometry (77) 29 Hydrophobic Sorption and partitioning parameters of benzotriazole compounds (77) 9 Hydrogen peroxide Rapid determination of hydrogen peroxide in whitening patches for teeth using a new portable near-infrared spectrometer (78) 167 ICP-MS An automated system for preconcentration/matrix-removal followed by ICP-MS determination of organic phosphorus in oil production water (78) 65 Evaluation of closed-vessel microwave digestion method for the determination of trace impurities in polymer-based photoresist by inductively coupled plasma mass spectrometry (78) 163 Inductively coupled plasma atomic emission Analytical evaluation of electrothermal vaporization/low-pressure inductively coupled plasma atomic emission spectrometry for trace elemental analysis in microliter samples (78) 127 Inductively coupled plasma atomic emission spectrometry Determination of arsenic in dinosaur skeleton fossils by hydride generation atomic fluorescence spectrometry (77) 29 Inductively coupled plasma mass spectrometry Determination of B in body fluids by isotope dilution inductively coupled mass spectrometry with direct injection nebulization (77) 119 Interference Use of iridium plus rhodium as permanent modifier to determine As, Cd and Pb in acids and ethanol by electrothermal atomic absorption spectrometry (77) 151

234

Subject Index Volumes 77–78

Iridium Use of iridium plus rhodium as permanent modifier to determine As, Cd and Pb in acids and ethanol by electrothermal atomic absorption spectrometry (77) 151 Iron and cobalt determination Optimization of sample preparation using statistical methods: spectrophotometric determination of Fe and Co in pharmaceutical samples (78) 187 IsocidsR tablets Voltammetric assay of rifampicin and isoniazid drugs, separately and combined in bulk, pharmaceutical formulations and human serum at a carbon paste electrode (77) 53 Isoniazid Voltammetric assay of rifampicin and isoniazid drugs, separately and combined in bulk, pharmaceutical formulations and human serum at a carbon paste electrode (77) 53 Isotope dilution Determination of B in body fluids by isotope dilution inductively coupled mass spectrometry with direct injection nebulization (77) 119 Isoprenaline Voltammetric determination of isoprenaline in pharmaceutical preparations using a copper(II) hexacyanoferrate(III) modified carbon paste electrode (78) 55 Kimberlitic–pyropic peridotite–xenolites Petrographic/geochemical studies of primary and alteration–weathering minerals in garnetiferous ultramafic xenoliths–basanite, Tartous Province, NW Syria (78) 115 K2S2O8 Study and application of parallel catalytic hydrogen wave of lincomycin in the presence of persulfate (77) 23 Landfill leachate Application of activated carbon in the characterization of nitrogen compounds and phthalates in a landfill leachate (78) 61 Laser-induced fluorescence Trace level determination of substance P using capillary electrophoresis and laser-induced fluorescence (78) 135 Lead Simultaneous determination of copper and lead in ethanol fuel by anodic stripping voltammetry (77) 157 Lead determination Multivariate optimization and validation studies in on-line pre-concentration system for lead determination in drinking water and saline waste from oil refinery (77) 123 Lecythis ollaria Distribution and speciation of selenium in Lecythis ollaria plant (78) 195 Lichens Correlation of mercury concentrations in tree core and lichen samples in southeastern Louisiana (78) 205 Lincomycin Study and application of parallel catalytic hydrogen wave of lincomycin in the presence of persulfate (77) 23 Linear potential scan polarography Study and application of parallel catalytic hydrogen wave of lincomycin in the presence of persulfate (77) 23 Liquid chromatography Use of cotton as a sorbent for on-line precolumn enrichment of polycyclic aromatic hydrocarbons in waters prior to liquid chromatography determination (77) 19 Electroanalytical and chromatographic determination of pentachlorophenol and related molecules in a contaminated soil: a real case example (77) 177 Mapping optimization method Computer-assisted optimization of reversed-phase HPLC isocratic separation of neutral compounds (78) 99 Mass spectrometry Elucidation of methyl tert-butyl ether degradation with Fes2+/H2O2 by purge-and-trap gas chromatography-mass spectrometry (77) 71

Meals Simultaneous square wave anodic stripping voltammetric determination of Cr, Pb, Sn, Sb, Cu, Zn in presence of reciprocal interference: application to meal matrices (78) 175 Mechanism Elucidation of methyl tert-butyl ether degradation with Fes2+/H2O2 by purge-and-trap gas chromatography-mass spectrometry (77) 71 Medicinal plants Determination of copper in medicinal plants used as dietary supplements by atomic absorption spectrometry with direct flame solid analysis (77) 113 Mercury Determination of Hg from Cu concentrates by X-ray fluorescence through preconcentration on polyurethane foam (78) 1 Correlation of mercury concentrations in tree core and lichen samples in southeastern Louisiana (78) 205 Metals Simultaneous square wave anodic stripping voltammetric determination of Cr, Pb, Sn, Sb, Cu, Zn in presence of reciprocal interference: application to meal matrices (78) 175 Methyl tert-butyl ether Elucidation of methyl tert-butyl ether degradation with Fes2+/H2O2 by purge-and-trap gas chromatography-mass spectrometry (77) 71 Microwave digestion Evaluation of closed-vessel microwave digestion method for the determination of trace impurities in polymer-based photoresist by inductively coupled plasma mass spectrometry (78) 163 Microwave oven Spectrophotometric determination of formaldehyde with chromotropic acid in phosphoric acid medium assisted by microwave oven (77) 47 Mg II/Mg I Evaluation of inductively coupled plasma optical emission spectrometers with axial configuration: interfaces with end-on gas and shear gas (77) 185 Modified carbon paste electrode Voltammetric determination of isoprenaline in pharmaceutical preparations using a copper(II) hexacyanoferrate(III) modified carbon paste electrode (78) 55 Modified electrode Electrochemical determination of 8-azaguanine in human urine at a multi-carbon nanotubes modified electrode (77) 37 Modified glassy carbon electrode by electropolymerization of tetrakis(2-aminopheny)porphyrin for the determination of norepinephrine in the presence of ascorbic acid (78) 181 Modified silica gel Organically modified silica gel and flame atomic absorption spectrometry: employment for separation and preconcentration of nine trace heavy metals for their determination in natural aqueous systems (78) 143 Multicommutation Multicommutation ATR-FTIR: determination of sodium alpha-olefin sulfonate in detergent formulations (78) 47 Automatic flow procedure for the determination of glycerol in wine using enzymatic reaction and spectrophotometry (77) 107 Mycotoxins N,N-dimethyl-trimethylsilyl-carbamate as a derivatizing agent in gas chromatography of trichothecene mycotoxins (77) 43 Myoglobin Electroanalysis of myoglobin and hemoglobin with a boron-doped diamond electrode (78) 217 NDA derivatization Trace level determination of substance P using capillary electrophoresis and laser-induced fluorescence (78) 135 Near-infrared spectrometer Rapid determination of hydrogen peroxide in whitening patches for teeth using a new portable near-infrared spectrometer (78) 167

Subject Index Volumes 77–78 Neutron activation analysis Evaluation of closed-vessel microwave digestion method for the determination of trace impurities in polymer-based photoresist by inductively coupled plasma mass spectrometry (78) 163 Nickel in crude oil Method development for the determination of nickel in petroleum using line-source and high-resolution continuum-source graphite furnace atomic absorption spectrometry (77) 131 Nivalenol Simultaneous detection of A and B trichothecenes by gas chromatography with flame ionization or mass selective detection (78) 211 N,N-dimethyl-trimethylsilyl-carbamate N,N-dimethyl-trimethylsilyl-carbamate as a derivatizing agent in gas chromatography of trichothecene mycotoxins (77) 43 N,N-Dimethyl-trimethylsilyl-carbamate Simultaneous detection of A and B trichothecenes by gas chromatography with flame ionization or mass selective detection (78) 211 Non-aqueous solution Electrochemical detection of Cu(I) and Cu(II) in styrene media (77) 85 Norepinephrine Modified glassy carbon electrode by electropolymerization of tetrakis(2-aminopheny)porphyrin for the determination of norepinephrine in the presence of ascorbic acid (78) 181 Oil production An automated system for preconcentration/matrix-removal followed by ICP-MS determination of organic phosphorus in oil production water (78) 65 Oil refinery Multivariate optimization and validation studies in on-line pre-concentration system for lead determination in drinking water and saline waste from oil refinery (77) 123 On-line dilution Automatic flow procedure for the determination of glycerol in wine using enzymatic reaction and spectrophotometry (77) 107 On-line pre-concentration system Multivariate optimization and validation studies in on-line pre-concentration system for lead determination in drinking water and saline waste from oil refinery (77) 123 Use of modified rice husks as a natural solid adsorbent of trace metals: characterisation and development of an on-line preconcentration system for cadmium and lead determination by FAAS (77) 163 Optimization Computer-assisted optimization of reversed-phase HPLC isocratic separation of neutral compounds (78) 99 Organic carbon (OC) Measurement of carbonaceous aerosols: validation of a thermal gravimetric method and its comparison with a thermal optical transmittance method (77) 63 Overlapping resolution mapping Computer-assisted optimization of reversed-phase HPLC isocratic separation of neutral compounds (78) 99 PAR Preliminary evaluation of the cadmium concentration in seawater of the Salvador City, Brazil (78) 77 Parallel catalytic hydrogen wave Study and application of parallel catalytic hydrogen wave of lincomycin in the presence of persulfate (77) 23 Partitioning Sorption and partitioning parameters of benzotriazole compounds (77) 9 Patches Rapid determination of hydrogen peroxide in whitening patches for teeth using a new portable near-infrared spectrometer (78) 167

235

Pentachlorophenol Electroanalytical and chromatographic determination of pentachlorophenol and related molecules in a contaminated soil: a real case example (77) 177 Permanent modifier Use of iridium plus rhodium as permanent modifier to determine As, Cd and Pb in acids and ethanol by electrothermal atomic absorption spectrometry (77) 151 Petrographic/geochemical studies Petrographic/geochemical studies of primary and alteration–weathering minerals in garnetiferous ultramafic xenoliths–basanite, Tartous Province, NW Syria (78) 115 Pharmaceutical preparations Solid-phase UV spectrophotometric method for determination of ciprofloxacin (77) 79 Voltammetric determination of isoprenaline in pharmaceutical preparations using a copper(II) hexacyanoferrate(III) modified carbon paste electrode (78) 55 Pharmaceutical sample preparation Optimization of sample preparation using statistical methods: spectrophotometric determination of Fe and Co in pharmaceutical samples (78) 187 Pharmaceuticals A Prussian blue-based flow-through renewable surface optosensor for analysis of ascorbic acid (78) 157 Pharmaceuticals analysis A flow injection method for biamperometric determination of dipyrone in pharmaceuticals (78) 91 Phosphorus An automated system for preconcentration/matrix-removal followed by ICP-MS determination of organic phosphorus in oil production water (78) 65 Photoresist Evaluation of closed-vessel microwave digestion method for the determination of trace impurities in polymer-based photoresist by inductively coupled plasma mass spectrometry (78) 163 Polyethylene Determination of thiamine in blood serum and urine by high-performance liquid chromatography with direct injection and post-column derivatization (78) 71 Polysiloxanes Immobilized polysiloxanes as stationary phases for high-performance liquid chromatography and solid phase extraction (77) 191 Polyurethane foam Determination of Hg from Cu concentrates by X-ray fluorescence through preconcentration on polyurethane foam (78) 1 Portable Rapid determination of hydrogen peroxide in whitening patches for teeth using a new portable near-infrared spectrometer (78) 167 Precolumn Use of cotton as a sorbent for on-line precolumn enrichment of polycyclic aromatic hydrocarbons in waters prior to liquid chromatography determination (78) 19 Preconcentration Preliminary evaluation of the cadmium concentration in seawater of the Salvador City, Brazil (78) 77 Prussian blue A Prussian blue-based flow-through renewable surface optosensor for analysis of ascorbic acid (78) 157 Quantification Voltammetric assay of rifampicin and isoniazid drugs, separately and combined in bulk, pharmaceutical formulations and human serum at a carbon paste electrode (77) 53 Research in Brazil Research on analytical chemistry in Brazil: an overview (77) 101

236

Subject Index Volumes 77–78

Resolution Computer-assisted optimization of reversed-phase HPLC isocratic separation of neutral compounds (78) 99 Rhodium Use of iridium plus rhodium as permanent modifier to determine As, Cd and Pb in acids and ethanol by electrothermal atomic absorption spectrometry (77) 151 Rice husks Use of modified rice husks as a natural solid adsorbent of trace metals: characterisation and development of an on-line preconcentration system for cadmium and lead determination by FAAS (77) 163 Rifampicin Voltammetric assay of rifampicin and isoniazid drugs, separately and combined in bulk, pharmaceutical formulations and human serum at a carbon paste electrode (77) 53 RimactanesR capsules Voltammetric assay of rifampicin and isoniazid drugs, separately and combined in bulk, pharmaceutical formulations and human serum at a carbon paste electrode (77) 53 Saliva samples Trace level determination of substance P using capillary electrophoresis and laser-induced fluorescence (78) 135 Scale inhibitors An automated system for preconcentration/matrix-removal followed by ICP-MS determination of organic phosphorus in oil production water (78) 65 Schliren A novel strategy to verification of adulteration in alcoholic beverages based on Schlieren effect measurements and chemometric techniques (78) 27 Selenium Distribution and speciation of selenium in Lecythis ollaria plant (78) 195 Serum Determination of thiamine in blood serum and urine by high-performance liquid chromatography with direct injection and post-column derivatization (78) 71 Shear gas Evaluation of inductively coupled plasma optical emission spectrometers with axial configuration: interfaces with end-on gas and shear gas (77) 185 Silylation N,N-dimethyl-trimethylsilyl-carbamate as a derivatizing agent in gas chromatography of trichothecene mycotoxins (77) 43 Sodium alpha-olefin sulfonate determination Multicommutation ATR-FTIR: determination of sodium alpha-olefin sulfonate in detergent formulations (78) 47 Soil contamination Electroanalytical and chromatographic determination of pentachlorophenol and related molecules in a contaminated soil: a real case example (77) 177 Solid phase extraction Immobilized polysiloxanes as stationary phases for high-performance liquid chromatography and solid phase extraction (77) 191 Solid phase spectrophotometry Solid-phase UV spectrophotometric method for determination of ciprofloxacin (77) 79 Sorption Sorption and partitioning parameters of benzotriazole compounds (77) 9 SPE Determination of thiamine in blood serum and urine by high-performance liquid chromatography with direct injection and post-column derivatization (78) 71 Speciation Distribution and speciation of selenium in Lecythis ollaria plant (78) 195

Spectrofluorimetry Evaluation of a spectrofluorimetric method for the selective determination of thalidomide in pharmaceutical tablets, urine and blood serum (77) 1 Spectrofluorimetric determination of formaldehyde in air after collection onto silica cartridges coated with Fluoral P (78) 15 Spectrophotometry Spectrophotometric determination of formaldehyde with chromotropic acid in phosphoric acid medium assisted by microwave oven (77) 47 Automatic flow procedure for the determination of glycerol in wine using enzymatic reaction and spectrophotometry (77) 107 Spectroscopy Simultaneous square wave anodic stripping voltammetric determination of Cr, Pb, Sn, Sb, Cu, Zn in presence of reciprocal interference: application to meal matrices (78) 175 Square-wave Voltammetric assay of rifampicin and isoniazid drugs, separately and combined in bulk, pharmaceutical formulations and human serum at a carbon paste electrode (77) 53 Square wave voltammetry Modified glassy carbon electrode by electropolymerization of tetrakis(2-aminopheny)porphyrin for the determination of norepinephrine in the presence of ascorbic acid (78) 181 Stability of solutions Method development for the determination of nickel in petroleum using line-source and high-resolution continuum-source graphite furnace atomic absorption spectrometry (77) 131 Substance P Trace level determination of substance P using capillary electrophoresis and laser-induced fluorescence (78) 135 Sulfanilamide Evaluation of a spectrofluorimetric method for the selective determination of thalidomide in pharmaceutical tablets, urine and blood serum (77) 1 Syria Petrographic/geochemical studies of primary and alteration–weathering minerals in garnetiferous ultramafic xenoliths–basanite, Tartous Province, NW Syria (78) 115 T2-toxin Simultaneous detection of A and B trichothecenes by gas chromatography with flame ionization or mass selective detection (78) 211 Tetrahexylammoniumperchloraat Electrochemical detection of Cu(I) and Cu(II) in styrene media (77) 85 Thalidomide Evaluation of a spectrofluorimetric method for the selective determination of thalidomide in pharmaceutical tablets, urine and blood serum (77) 1 Thermal gravimetric method Measurement of carbonaceous aerosols: validation of a thermal gravimetric method and its comparison with a thermal optical transmittance method (77) 63 Total phenol Focussed microwave-assisted sample preparation: total phenol determination in petroleum refinery effluents by flow injection spectrophotometry (78) 35 Trace elemental analysis Analytical evaluation of electrothermal vaporization/low-pressure inductively coupled plasma atomic emission spectrometry for trace elemental analysis in microliter samples (78) 127 Tree cores Correlation of mercury concentrations in tree core and lichen samples in southeastern Louisiana (78) 205 Trichothecenes N,N-dimethyl-trimethylsilyl-carbamate as a derivatizing agent in gas chromatography of trichothecene mycotoxins (77) 43 Simultaneous detection of A and B trichothecenes by gas chromatography with flame ionization or mass selective detection (78) 211

Subject Index Volumes 77–78 TSP Short-term and spatial variation of selected metals in the atmosphere of Nitero´i City, Brazil (78) 85 Tungsten Evaluation of electrodeposited tungsten chemical modifier for direct determination of chromium in urine by ETAAS (78) 7 Ultramicro electrodes Electrochemical detection of Cu(I) and Cu(II) in styrene media (77) 85 Ultramicroelectrodes Electroanalytical and chromatographic determination of pentachlorophenol and related molecules in a contaminated soil: a real case example (77) 177 Ultrasonic extraction Application of activated carbon in the characterization of nitrogen compounds and phthalates in a landfill leachate (78) 61 Ultrasonic irradiation Deleterious effect of ammonium extraction from soil assisted by ultrasound (78) 41 Ultrasound-assisted extraction Deleterious effect of ammonium extraction from soil assisted by ultrasound (78) 41 Urine Electrochemical determination of 8-azaguanine in human urine at a multi-carbon nanotubes modified electrode (77) 37 Evaluation of electrodeposited tungsten chemical modifier for direct determination of chromium in urine by ETAAS (78) 7 Determination of thiamine in blood serum and urine by high-performance liquid chromatography with direct injection and post-column derivatization (78) 71 UV sample treatment Evaluation of a spectrofluorimetric method for the selective determination of thalidomide in pharmaceutical tablets, urine and blood serum (77) 1 Validation Measurement of carbonaceous aerosols: validation of a thermal gravimetric method and its comparison with a thermal optical transmittance method (77) 63

237

Vanadium Electrothermal atomic absorption spectrometric method for the determination of vanadium in diesel and asphaltene prepared as detergentless microemulsions (78) 21 Vitamin B1 Determination of thiamine in blood serum and urine by high-performance liquid chromatography with direct injection and post-column derivatization (78) 71 Volatile nickel porphyrins Method development for the determination of nickel in petroleum using line-source and high-resolution continuum-source graphite furnace atomic absorption spectrometry (77) 131 Voltammetric determination Voltammetric determination of isoprenaline in pharmaceutical preparations using a copper(II) hexacyanoferrate(III) modified carbon paste electrode (78) 55 Voltammetry Electrochemical determination of 8-azaguanine in human urine at a multi-carbon nanotubes modified electrode (77) 37 Simultaneous square wave anodic stripping voltammetric determination of Cr, Pb, Sn, Sb, Cu, Zn in presence of reciprocal interference: application to meal matrices (78) 175 Water Organically modified silica gel and flame atomic absorption spectrometry: employment for separation and preconcentration of nine trace heavy metals for their determination in natural aqueous systems (78) 143 Whole bovine milk Evaluation of inductively coupled plasma optical emission spectrometers with axial configuration: interfaces with end-on gas and shear gas (77) 185 Wine Automatic flow procedure for the determination of glycerol in wine using enzymatic reaction and spectrophotometry (77) 107 X-ray fluorescence Determination of Hg from Cu concentrates by X-ray fluorescence through preconcentration on polyurethane foam (78) 1