High Tech Separations News articles from January 1999

High Tech Separations News archives from January 1999

SUPERCRITICAL FLUIDS Competing or Harmonious Forces?
January 19, 1999... Analytical laboratories are beginning to experiment with new sample preparation strategies that eventually replace Soxhlet and other classic liquid solvent strategies. Two of the newest sample options open to analysts are supercritical fluid...

Small Screening Unit Helps Researchers.
January 19, 1999... A small, packaged SFE unit, the extraction screening system, offered by Autoclave Engineers Group (230 W. 22nd St., Erie, PA 16512; Tel: 814/838-5700, Fax: 814/833-0145), a division of Snap-tite, Inc., should help researchers conduct...

CAPILLARY CHROMATOGRAPHY Sandia, Unimicro Use Electroosmotic Flow.
January 19, 1999... It is important to accurately characterize the extent of soil and groundwater contamination of former ammunition plants and military facilities and to identify the constituents found in blast residues. Although a number of different methods...

GAS CHROMATOGRAPHY Producing Low Bleed Columns.
January 19, 1999... Bleed is one of the number one complaints in gas chromatography systems and one that many column and accessory providers are working to control. Column bleed is derived from the degradation of the stationary phase polymer. Column bleed...

J&W Scientific.
January 19, 1999... J&W Scientific (91 Blue Ravine Rd., Folson, CA 95630-4714; Tel: 800/223-3424, Fax: 916/985-1101) uses such a coating to manufacture its "ms" low bleed columns. The company's DB-5ms column utilizes a coating based on arylene chemistry. The...

Quadrex.
January 19, 1999... Quadrex Corp.'s (Box 3881, Woodbridge, CT 06525; Tel: 800/275-7033, Fax: 203/393-0391) 07-5MS silphenylene columns prevent bleed through the use of the silphenylene units within the backbone. These units act as heat sinks and limit the...

Chrompak.
January 19, 1999... Chrompak's (1130 Route 202, Raritan, NJ 08869; Tel: 908/722-8930 or 800/526-3687, Fax: 908/722-8365) two accepted low-bleed columns are the CP-Sil 5 CB and the CP-Sil 8 DB. The CP-Sil 5 CB is 100% dimetholpolysiloxane. The CP-Sil 8DB is 5%...

Hewlett-Packard.
January 19, 1999... Hewlett-Packard's (3000 Hanover St., Palo Alto, CA 94304; Tel: 650/857-1501, Fax: 302/633-8902) low bleed columns include its HP-1MS and the HP-35MS. The latter of these two is 35% phenyl (equivalent) arylene-siloxane. HP lists it as...

Restek.
January 19, 1999... Two of Restek's (110 Benner Cir., Bellefonte, PA; Tel: 814/353-1300) low bleed columns include the MXT-5 (Silcosteel) and its Rtx-5MS (fused silica). The Rtx-5MS is 5% crossbonded, 5% diphenyl, and 95% dimethyl polysiloxane. To manufacture...

Liquid Radioactivity Offers Advantages.
January 19, 1999... Dow Chemical's (4675 Wilder Rd., Bay City, MI 48706; Tel: 517/667-2500) gas chromatography/liquid radioactivity (GC/LRAM) system is unlike other gas chromatography systems in that it takes advantage of the resolution and sensitivity achieved...

LIQUID CHROMATOGRAPHY Artificially Created Recognition.
January 19, 1999... Clinical and laboratory procedures in chemistry and biotechnology frequently rely on the separation of individual species from mixtures of similar species in liquid solutions. Various types of chromatography, particularly in the high...

Detecting Minute Amounts Made Easier.
January 19, 1999... BioTraces, Inc. (10517 West Dr., Fairfax, VA 22030-4230; Tel: 703/273- 6941) researchers Andrzej K. Drukier and Roman Bielski have developed chromatographic methods and reagents suitable for the detection and quantification of analytes of...

Theory Confirmed and Contradicted.
January 19, 1999... Research by scientists at the Dept. of Energy's Ames Laboratory (1161 Gilman, Ames, IA 50011-3111) has brought to light a truth and a discrepancy regarding chromatography. Chromatographic separation is a process involving many repeated...

Hypercarb Media for Problem Processes.
January 19, 1999... Hypersil, Inc. (300 Second Ave., Needham Heights, MA 02494; Tel: 800/292-6088, Fax: 781/453-2992) is the manufacturer of Hypercarb, a unique pH stable (0 to 14) graphatized carbon phase for problem separations in HPLC. For example, the phase...

Discovery Columns for Drug Development.
January 19, 1999... Supelco's (Supelco Park, Bellefonte, PA 16823-0048; Tel: 800/359-3041, Fax: 800/359-3044) line of Discovery columns are shielded-phase HPLC columns for the analyses of drugs or other small molecules in blood serum. The columns' enhanced...

Derivatization Agents Improve Detectability.
January 19, 1999... Although derivatization agents have long been used with gas chromatography to provide increased sample volatility, improved selectivity and efficiency, and greater detectability, using these agents in HPLC is a more recent phenomenon. In...

BioTraces' Covers Multiphoton Detection.
January 19, 1999... U.S. Patent 5,854,084 covers BioTraces' (Box 13169, Research Triangle Park, NC 27709; Tel: 919/549-0422, Fax: 919/990-8561) for a radioactive derivatizing agent comprising a multiphoton-emitting radioisotope moiety and a moiety reactive with...

CHIRAL CHROMATOGRAPHY Restek Columns Off-the-Shelf.
January 19, 1999... With the increasing push to separate enantiomers, many column providers are getting into the business of distributing off-the- shelf chiral columns. Restek Corp. (110 Benner Cir., Bellefonte, PA; Tel: 814/353-1300) is one of the companies to...

BAS Technicol's Chirobiotic Series.
January 19, 1999... BAS Technicol (Riverside, Mountbattenway, Congleton, Cheshire CW12 IDY, U.K.; Tel: +44 1260 270022, Fax: +44 1260 28002) is a company with 10 years experience in chiral chromatography. It offers a variety of columns for different...

Problem of Dissolved Derivatives Solved.
January 19, 1999... Covered by U.S. Patent 5,656,158, Dow Chemical's (4675 Wilder Rd., Bay City, MI 48706; Tel: 517/667-2500) cellulose-based chiral phase addresses the problem of dissolved derivatives of cellulose used in HPLC separations. Dissolved...

INDUSTRY NEWS: Rohm & Haas Acquires LeaRonal.
January 19, 1999... Rohm and Haas Co. (100 Independence Mall West, Philadelphia, PA 19106; Tel: 215/592-3000, Fax: 215/592-3377), a major manufacturer of ion exchange resins, and LeaRonal, Inc. (272 Buffalo Ave., Freeport, NY 11520; Tel: 516/868-8800) have...

Waters Wins in Patent Infringement.
January 19, 1999... TA Instruments, Inc., a subsidiary of Waters Corp. (34 Maple St., Milford, MA 01757-3696; Tel: 508/478-2000 or 800/252-4752, Fax: 508/872-1990), has received a favorable decision from the U.S. District Court for the District of Delaware. The...

PE Subsidiary Signs License Agreement.
January 19, 1999... Tropix, a subsidiary of Perkin-Elmer (761 Main St., Norwalk, CT 06859- 0012; Tel: 203/762-1000), has completed a license agreement with Stanford University (Stanford, CA 94305; Tel: 650/723-2300). The agreement grants Tropix exclusive rights...

Dionex Agreements and Acquisitions.
January 19, 1999... Dionex (1228 Titan Way, Box 3601, Sunnyvale CA 94086-3803; Tel: 408/481-4459) completed two large acquisitions in 1998. Its purchase of $10 million Softron GmbH (Dornierstrasse 4, D-82110 Germering, Germany; Tel: +49 89 89468-1, Fax: +49 89...

Strategic Alliance with Red Cross.
January 19, 1999... Pall Corp. (2200 Northern Blvd., East Hills, NY; Tel: 516/484-5400, Fax: 516/484-3649) entered a strategic alliance with the Austrian Red Cross (ARC) in which Pall will acquire a 17% interest in TEC, a wholly- owned manufacturing arm of ARC....

European Commission Approves Acquisition.
January 19, 1999... ABB, the Zurich, Switzerland-based international engineering and technology group, has announced that it received approval from the European Commission (EC) to complete its acquisition of Elsag Bailey Process Automation N.V. (Box 5072, 2600...

MARKETS: Belgian Market Projected to Grow.
January 19, 1999... Two major consumers of laboratory scientific instruments are the chemical and pharmaceuticals industries, both of which play an important role in Belgium's economy. In addition, Belgium's seven universities support significant research...

Brazil Needs Lab Equipment.
January 19, 1999... U.S. trade experts estimate that Brazil's laboratory equipment market reached $540 million in 1997. Brazilian industries are investing in modernization and in efficiency to be competitive in the global market. As of December 1997, Brazil was...

Canadian Market Strong and Growing.
January 19, 1999... The total Canadian market for scientific instruments is projected to be $767 million in 1999, up from an estimated $735 million in 1998 and $702 million in 1997. Growth in Canadian demand for laboratory scientific instruments is expected to...

ADVANCED FILTRATION: Hollow Fibers Extended to Adsorption Process.
January 19, 1999... The Alberta Research Council (Manufacturing Technologies Business Unit, PO Box 8330, Edmonton, Alberta, Canada T6N 1E4; Tel: 403/450- 5411, Fax: 403/450-5477) has extended the configuration of hollow fiber membrane modules to the adsorption...

Compressed Air Dryer Line Introduced.
January 19, 1999... The newly introduced Variodry membrane dryer line has been designed by ultrafilter, inc. (3560 Engineering Dr., Norcross, GA 30092; Tel: 770/448-3363 or 800/543-3634, Fax: 770/448-3854) for use in a wide variety of compressed air system...