production monitoring and analysis of additives in polyolefins. Antek Instru ments 421 Newsletter. The Supelco Reporter, Vol. VIII, No. 5, includes information on simultaneous analytical and confirmational analyses of EPA method 608 pesticides, separation and purification of biopolymers, and determination of sodium content in foods. 12 pp. Su pelco 422
Life sciences. Catalog features prod ucts for molecular biology, immunolo gy, protein synthesis, electrophoresis, biomedical research assays, and auto radiography. Amersham 430 ICP. Catalog describes sample intro duction accessories, software, and training and support services for ICP spectrometry. Also included are single-
element and multielement standards. 20 pp. Leeman Labs 433 Chromatography. Catalog lists prod ucts for biochromatography, column chromatography, GC, HPLC, and TLC. Included are columns, pumps, detectors, autosampler supplies, frac tion collectors, glassware, and syringes. 256 pp. Fisher Scientific 434
Electrophoresis. Application notes describe the separation of proteins, peptides, small organics, and pharma ceuticals using capillary electrophore sis. Analysis conditions, electrophoretic data, and comparisons with existing separation techniques are discussed. Applied Biosystems 423 IR. Bruker Report features articles on high-temperature superconductivity, high-resolution FT-IR spectroscopy with a PC, and application of FT-IR spectroscopy to the study of reactions in liquids. 52 pp. Bruker Instruments 424 Carbon. Brochure highlights the 1500 series total organic carbon and total carbon analyzer. Features, applica tions, and principles of operation are discussed. 6 pp. Ionics 425 Newsletter. Information on products and applications in areas including electron and ion microscopy, surface analysis, Ε-beam microlithography, and microcircuit failure analysis and repair is featured in the newsletter fei focus. FEI 426
DSC 2910 differential scanning calorimeter features electronic controls, five-point temperature calibration, programmed heating and cooling from 0.01 to 200 °C/min, step heating and cooling, and isothermal operation. Du Pont 402
NIST UNITED STATES DEPARTMENT OF COMMERCE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY
The National Institute of Standards and Technology has developed a series of SRM's to serve as calibrants, test mixtures, and standardization materials for Quality Control of analytical instrumentation and methodology.
Catalogs GC. Catalog lists capillary columns and accessories; packings; septa; traps; fittings; valves; syringes; analytical standards; and autosampler vials, caps, and seals. 196 pp. Chemical Research Supplies 428
MEASUREMENTS and STANDARDS are important to everyone who needs quality. NIST has over 1,000 Standard Reference Materials that can help you calibrate instruments and check on measurement accuracy. For more information phone or write for a free catalog.
Chemicals. Catalog includes research chemicals, high-purity acids, distilledin-glass solvents, and desiccants. Ta bles of oxidation-reduction indicators and colorimetric reagents for iron and copper are included. 474 pp. GFS Chemicals 429 Reagents/chromatography. Catalog includes laboratory reagents; high-pu rity acids and solvents; columns and packings for HPLC; and products for solid-phase extraction, biochromatography, and chiral chromatography. J. T. Baker 432
QUALITY MEASUREMENTS = STANDARD REFERENCE MATERIALS
Telephone (301) 975-OSRM (6776) FAX (301) 948-3730 STANDARD REFERENCE MATERIAL PROGRAM
SRM
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