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High temperature total organic carbon analyser
Volume 22/Number 12/l)eccmbcr 1991
High Temperature Total Organic Carbon Analyser The latest version of the Dohrmann DC-190 High Temperature Total Organic Carbon (TOC) analyser with up-to-the-minute software improvements, is now
The latest ,~ersionof the Dohrmann DC-190 High TemperatureTotal Organic Carbon (TOC)Analyser.
available in the UK from Sartec, the Kent based specialists in environmental pollution monitoring instrumentation. Of the many new features, the calibration clipboard will be particularly useful, this facility allowing the user to store multiple set-up routines and calibration factors, ready for instant recall when required. The stored information can be recalled, changed, or printed out as and when the need arises. Another important new feature is the improvement to the ASM routines. For example, if a sample is 'out-of-range', the instrument will repeatedly and automatically step down the injected volume until it comes into range, the associated printout showing the volume actually injected. For the next sample, the instrument automatically switches back to the normal programmed parameters. The improved ASM function together with automatic shut-off of the oxygen supply at the cnd of a batch of analyses, makes the instrument much more suitable for unattended operation, and even overnight analyses can be carried out without cause for concern. An improved calibration routine, with separate TC blank and IC blank always at zero, affords greater flexibility and accuracy to users who are working in the low ranges, say 0-10 ppm and calibrating on a 5 ppm standard. The DC-190 is designed for use with drinking water, sea-water and waste water samples, either clean or containing suspended solids up to 0.5 mm. Apart from the advantages of its new software and the ability to handle particulates, the other major
Shimadzu k('-aA t tigh PressureLiquidChromatograph. 625
Marine Pollution Bulletin advantage afforded by DC-190 is that it provides a true indication of TOC and not just a measure of the dissolved level. Moreover it gives a result in less than 3 minutes per sample. An autosampler is available which comprises a 32 station carousel and a sampling device manufactured from special materials which virtually eliminate the risk of cross contamination.
Shimadzu HPLC Systems from Dyson The popular Shimadzu LC-6A liquid chromatograph systems are now available at special prices from Dyson Instruments, Hetton Lyons Industrial Estate, Hetton,
Houghton-le-Spring, Tyne & Wear DH5 0RH, UK. For example, an isocratic LC system comprising a single LC-6A pump, SPD-6A UV spectrophotometric detector, column holder and Rheodyne 7125 is on offer for just over £5000. This system is ideal for routine analysis and its uncomplicated design provides ease of operation for the inexperienced chromatographer together with minimum routine maintenance. For analysts requiring the capabilities of binary gradient elution, Dyson has assembled the following system at a cost of just under £10 000: two LC-6A pumps, SCL6B system controller, SPD6A detector, column holder, Rheodyne 7125 and all necessary interfaces. Since the LC-6A system is built-up from fully compatible modules, further components or detectors may be added at any time to meet the needs of expanding analytical requirements.
Whilst every effort is made by the publishers and editorial board to see that no inaccurate or misleading data, opinions or statements appear in this journal, they wish to make it clear that the data and opinions appearing in the articles and advertisements herein are the sole responsibility of the contributor or advertiser concerned. Accordingly, the publishers, the editorial board and editors, and their respective employees, officers and agents accept no responsibility or liability whatsoever for the consequences of any such inaccurate or misleading data, opinions or statements.
626
High Temperature Total Organic Carbon Analyser The latest version of the Dohrmann DC-190 High Temperature Total Organic Carbon (TOC) analyser with up-to-the-minute software improvements, is now
The latest ,~ersionof the Dohrmann DC-190 High TemperatureTotal Organic Carbon (TOC)Analyser.
available in the UK from Sartec, the Kent based specialists in environmental pollution monitoring instrumentation. Of the many new features, the calibration clipboard will be particularly useful, this facility allowing the user to store multiple set-up routines and calibration factors, ready for instant recall when required. The stored information can be recalled, changed, or printed out as and when the need arises. Another important new feature is the improvement to the ASM routines. For example, if a sample is 'out-of-range', the instrument will repeatedly and automatically step down the injected volume until it comes into range, the associated printout showing the volume actually injected. For the next sample, the instrument automatically switches back to the normal programmed parameters. The improved ASM function together with automatic shut-off of the oxygen supply at the cnd of a batch of analyses, makes the instrument much more suitable for unattended operation, and even overnight analyses can be carried out without cause for concern. An improved calibration routine, with separate TC blank and IC blank always at zero, affords greater flexibility and accuracy to users who are working in the low ranges, say 0-10 ppm and calibrating on a 5 ppm standard. The DC-190 is designed for use with drinking water, sea-water and waste water samples, either clean or containing suspended solids up to 0.5 mm. Apart from the advantages of its new software and the ability to handle particulates, the other major
Shimadzu k('-aA t tigh PressureLiquidChromatograph. 625
Marine Pollution Bulletin advantage afforded by DC-190 is that it provides a true indication of TOC and not just a measure of the dissolved level. Moreover it gives a result in less than 3 minutes per sample. An autosampler is available which comprises a 32 station carousel and a sampling device manufactured from special materials which virtually eliminate the risk of cross contamination.
Shimadzu HPLC Systems from Dyson The popular Shimadzu LC-6A liquid chromatograph systems are now available at special prices from Dyson Instruments, Hetton Lyons Industrial Estate, Hetton,
Houghton-le-Spring, Tyne & Wear DH5 0RH, UK. For example, an isocratic LC system comprising a single LC-6A pump, SPD-6A UV spectrophotometric detector, column holder and Rheodyne 7125 is on offer for just over £5000. This system is ideal for routine analysis and its uncomplicated design provides ease of operation for the inexperienced chromatographer together with minimum routine maintenance. For analysts requiring the capabilities of binary gradient elution, Dyson has assembled the following system at a cost of just under £10 000: two LC-6A pumps, SCL6B system controller, SPD6A detector, column holder, Rheodyne 7125 and all necessary interfaces. Since the LC-6A system is built-up from fully compatible modules, further components or detectors may be added at any time to meet the needs of expanding analytical requirements.
Whilst every effort is made by the publishers and editorial board to see that no inaccurate or misleading data, opinions or statements appear in this journal, they wish to make it clear that the data and opinions appearing in the articles and advertisements herein are the sole responsibility of the contributor or advertiser concerned. Accordingly, the publishers, the editorial board and editors, and their respective employees, officers and agents accept no responsibility or liability whatsoever for the consequences of any such inaccurate or misleading data, opinions or statements.
626