NEW PRODUCTS Manufacturers' Literature Electrochemistry. "Electrochemistry Capsules" are application notes that describe electrochemical methods for solving problems in quantitative analy sis and material characterization. Bioanalytical Systems 417
N e w s l e t t e r . Chromatography Re view, Vol. 15, No. 1, contains informa tion on protein and peptide analysis by LC and analysis of primary amino acids using an automated precolumn ΟΡΑ derivatization method. 16 pp. SpectraPhysics 421
Mercury. Manual describes an auto mated system for the determination of mercury in water, sludge, fish, and bio logical materials. Sample preparation, reagents, and equipment are discussed. Labtronics 418
P h a r m a c e u t i c a l analysis. Applica tion note ECD-11 describes determina tion of chlorpromazine in plasma using an electrochemical detector. Detection levels and instrumental and chromato graphic conditions are discussed. EG&G Princeton Applied Research 420
C h r o m a t o g r a p h y . The Separation Times, Vol. 2, No. 2, contains informa tion on column rinsing, selectivity tun ing using coupled capillary columns, and drug screening by capillary GC. 12 pp. J&W Scientific 419
Catalogs
Ion exchange. Brochure discusses the ProPac PA1 series of ion-exchange col umns for proteins and nucleic acids. Chromatograms, recovery data, and specifications are included. 6 pp. Dionex 422
B a l a n c e s . Catalog features scales, electronic and mechanical balances, and accessories. Also listed are elec tronic balance calibration weights and weight sets. 20 pp. Ohaus 424 Liquid measurement. Catalog lists adjustable, single-volume, and ultramicro volume pipettes; disposable tips;
hand-held, stepping, and bottle dis pensers; and peristaltic pumps. An in troductory guide to pipetting is includ ed. 44 pp. Rainin Instrument Co. 427 Optics. Catalog includes beam split ters, filters, laser components, lenses, polarizers, excimer laser optics, prisms, IR optics, and windows. Charts and de tail drawings are included. 48 pp. Optics for Research 425 FT-IR. Catalog features products for solid, semisolid, liquid, and gas sam pling. An applications guide is included to aid in the selection of sampling ac cessories. 22 pp. Spectra-Tech 426 Laboratory equipment. Catalog in cludes balances, baths, incubators, pH equipment, meters, and pipetting aids. J. & H. Berge 428 Fluorescent probes. Catalog features lipophilic and membrane probes, in cluding neutral, cationic, anionic, and superpolar probes. Areas of application include biotechnology and clinical di agnosis. 18 pp. Polo-Lambda 429
REFRACTIVE INDEX DETECTORS ERC-7511 ULTRA-HIGH SENSITIVE MODEL Unique integral flow controller for high stability, minimum drift; compact size.
Sample: Polystyrene Column: GPC Detector: ERC-7511 Sensitivity: '/• χ 10" S RIU/FS
1. 2. 3. 4.
2,700.000 M.W. 110,000 35,000 3,600 (0.5jug each)
ERC-7512 ULTRA-HIGH SENSITIVE MODEL Same high stability as the 7511 — 20 times the industry standard. Electrical auto-zero.
MINUTES
ERMA, Inc. is the world leader in the manufacture of From preparative testing of high concentrates to Deflection Refractive Index Detectors. All ERMA RI mobile phases of the smallest amounts of organic Detectors represent the most sophisticated technology solvents, ERMA has the RI Detector you need. available. Flow monitoring, temperature regulation, Do Your Research Before You Begin Sampling. minimal drift, self-diagnostics and compact design are Call the Analytical Specialists at ANSPEC, and ask standard features of ERMA detectors. These and other a lot of questions. As the Exclusive ERMA distributor features assure efficiency, high performance and in the U.S.A., we know ERMA products. superior results. Call Toll Free: 800-521-1720 (800-482-3452 in Michigan).
ERC ERMA INC.
P. O. Box 7730 · Ann Arbor, Michigan 48107 · 313-665-9666 CIRCLE 5 ON READER SERVICE CARD
1114 A ·
ANALYTICAL CHEMISTRY, VOL. 60, NO. 19, OCTOBER
1, 1988
ANSPEC
