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Ion exchange and membrane technology combined
Analytical-grade water from tap
Sartobind Membrane Adsorbers from Sartorius Separation Technology combine ion exchange chromatography and membrane technology, offering high speed, high resolution and cost effective separation for a variety of biomolecules. It is available in a variety of sizes from lab to production
Sartobind is claimed to overcome many of the limitations of column chromatography, such as channelling and premature fouling. These units are operated in adsorption/desorption mode, capturing and eluting biomolecules by using increasing salt concentrations in linear or step-wise gradients. Sartobind can be operated with a syringe, a peristaltic pump, or connected to a chromatography workstation instead of the traditional packed column. The Membrane Adsorbers use functional groups covalently bonded to crosslinked regenerated cellulose membrane. The noncollapsible matrix prevents channelling and provides flow up to 100 ml/min with 15 cm* units or 200 mllmin with 100 cm2 units. In contrast traditional lab scale packed columns have flows of I-10 mllmin. Sartorius Separation Technology, Longmead Business Centre, Blenheim Road, Epsom, Surrey, KT79 9QN, UK. tel. +44 1372 737100, fax. i-44 1372 726171. Sartorius Corporation, 131 Heartland Boulevard, Edgewood, NY 11717, USA. Tel: + 1 800 368 7178 (tollfree), fax: + 1 516 254 4253.
Millipore’s Elix water purification systems produce consistently pure Analytical-Grade water directly from tap water by combining reverse osmosis (RO) and patented Continuous Electrodeionization technology (EDI). This technology ensures a continuous supply of consistent quality water, eliminating the fluctuating water quality experienced with both distillation or traditional deionization. Unlike traditional deionization where the resin in regenerated in a “pool” outside the system, the ion-exchange resin in the system is continuously regenerated via electric current within the EDI module itself. There is no interruption in service for tank exchanges, and no regeneration with harsh chemicals, a degenerative process which will ultimately compromise resin quality and performance. Elix systems are claimed to be more efficient than distillation. EDI is a low-energy process which is also much more efficient in water consumption. Elix systems reject up to six times less water than a typical double distil!ation system to produce the same volume of purified water. Labour-intensive cleaning required by still to maintain water purity levels, is also eliminated using the system. The water produced meets or exceeds ASTM, CAP, NCCLS and IS03696/BS3978 specifications for Type II AnalyticalGrade water, and may be used for applications such as microbiological media preparation, final glassware washing, buffer preparation and feed to instrumentation. It also meets the specifications for purified water given in the U.S.P. and European Pharmacopoeia. Millipore Corporation, 80 Ashby Road, Bedford, MA 017309125 USA. Tel. + 1 617 275 9200, fax. + 1 617 275 5550. Millipore SA, 39 Route lndustrielle de la Hardt, F-67120 Molsheim, France. Tel. $33 8838 9000, fax: f33 8838 9193.
The Positive Accelerated Coalescence of Emulsions, (PACE), oil/water separator from Smith & Loveless offers an economical alternative to the high price of hauling wastewater from industrial, marine and offshore installations. The PACE S-Series and SK-Series extract oil-free water for discharge or recycling. The separator is installed after flow equalisation and removal of gross oil and solids from the waste water, ahead of polishing processes which are intolerant of oil, such as activated carbon, ion exchange and reverse osmosis. With the PACE system ahead of polishing processes, it is claimed disposa! costs are reduced by up to 96%. The water content of the rejected oil is also reduced by half, in comparison to competing equipment. The result is a 50 percent further reduction in disposal costs. In most cases, oily wastewater contains a small amount of oil in a large amount of water. PACE membranes reject oil droplets, even when the oil is emulsified by detergents. Whenever detergents, caustics, or emulsifying agents are used to remove oil from surfaces, a chemical emulsion is produced which requires treatment. With the PACE, no additives, or chemicals are required to produce the oilfree water. The process uses compact spiral membrane eiements, employing a twostage regenerative process. Unlike simple batch systems, it provides continuous flow-through operation, The primary separator removes free oil and protects the second-stage UF membranes. In the second stage, oil rejected by the membranes is striped from the emulsion. Smith & Loveless Inc, 14040 Santa Fe Trail Drive, ienexa, KS 66215-1284, USA. Tel: i-1 913 888 5241, Fax: + 1913 888 2173.
Sartobind Membrane Adsorbers from Sartorius Separation Technology combine ion exchange chromatography and membrane technology, offering high speed, high resolution and cost effective separation for a variety of biomolecules. It is available in a variety of sizes from lab to production
Sartobind is claimed to overcome many of the limitations of column chromatography, such as channelling and premature fouling. These units are operated in adsorption/desorption mode, capturing and eluting biomolecules by using increasing salt concentrations in linear or step-wise gradients. Sartobind can be operated with a syringe, a peristaltic pump, or connected to a chromatography workstation instead of the traditional packed column. The Membrane Adsorbers use functional groups covalently bonded to crosslinked regenerated cellulose membrane. The noncollapsible matrix prevents channelling and provides flow up to 100 ml/min with 15 cm* units or 200 mllmin with 100 cm2 units. In contrast traditional lab scale packed columns have flows of I-10 mllmin. Sartorius Separation Technology, Longmead Business Centre, Blenheim Road, Epsom, Surrey, KT79 9QN, UK. tel. +44 1372 737100, fax. i-44 1372 726171. Sartorius Corporation, 131 Heartland Boulevard, Edgewood, NY 11717, USA. Tel: + 1 800 368 7178 (tollfree), fax: + 1 516 254 4253.
Millipore’s Elix water purification systems produce consistently pure Analytical-Grade water directly from tap water by combining reverse osmosis (RO) and patented Continuous Electrodeionization technology (EDI). This technology ensures a continuous supply of consistent quality water, eliminating the fluctuating water quality experienced with both distillation or traditional deionization. Unlike traditional deionization where the resin in regenerated in a “pool” outside the system, the ion-exchange resin in the system is continuously regenerated via electric current within the EDI module itself. There is no interruption in service for tank exchanges, and no regeneration with harsh chemicals, a degenerative process which will ultimately compromise resin quality and performance. Elix systems are claimed to be more efficient than distillation. EDI is a low-energy process which is also much more efficient in water consumption. Elix systems reject up to six times less water than a typical double distil!ation system to produce the same volume of purified water. Labour-intensive cleaning required by still to maintain water purity levels, is also eliminated using the system. The water produced meets or exceeds ASTM, CAP, NCCLS and IS03696/BS3978 specifications for Type II AnalyticalGrade water, and may be used for applications such as microbiological media preparation, final glassware washing, buffer preparation and feed to instrumentation. It also meets the specifications for purified water given in the U.S.P. and European Pharmacopoeia. Millipore Corporation, 80 Ashby Road, Bedford, MA 017309125 USA. Tel. + 1 617 275 9200, fax. + 1 617 275 5550. Millipore SA, 39 Route lndustrielle de la Hardt, F-67120 Molsheim, France. Tel. $33 8838 9000, fax: f33 8838 9193.
The Positive Accelerated Coalescence of Emulsions, (PACE), oil/water separator from Smith & Loveless offers an economical alternative to the high price of hauling wastewater from industrial, marine and offshore installations. The PACE S-Series and SK-Series extract oil-free water for discharge or recycling. The separator is installed after flow equalisation and removal of gross oil and solids from the waste water, ahead of polishing processes which are intolerant of oil, such as activated carbon, ion exchange and reverse osmosis. With the PACE system ahead of polishing processes, it is claimed disposa! costs are reduced by up to 96%. The water content of the rejected oil is also reduced by half, in comparison to competing equipment. The result is a 50 percent further reduction in disposal costs. In most cases, oily wastewater contains a small amount of oil in a large amount of water. PACE membranes reject oil droplets, even when the oil is emulsified by detergents. Whenever detergents, caustics, or emulsifying agents are used to remove oil from surfaces, a chemical emulsion is produced which requires treatment. With the PACE, no additives, or chemicals are required to produce the oilfree water. The process uses compact spiral membrane eiements, employing a twostage regenerative process. Unlike simple batch systems, it provides continuous flow-through operation, The primary separator removes free oil and protects the second-stage UF membranes. In the second stage, oil rejected by the membranes is striped from the emulsion. Smith & Loveless Inc, 14040 Santa Fe Trail Drive, ienexa, KS 66215-1284, USA. Tel: i-1 913 888 5241, Fax: + 1913 888 2173.