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Gas monitor. Bulletin describes the Sniffer 500 series of portable area gas monitors that are designed to alert per sonnel to the hazards of oxygen defi ciency and the presence of dangerous concentrations of combustible gases, carbon monoxide, and hydrogen sul fide. Features include continuous oper ation, internal and remote alarms, and a rechargeable battery pack. 4 pp. Bacharach 420
SYSTEMS FOR RESEARCH • Up to 10,000,000 watts of peak power • From deep UV to infrared • 10 nanoseconds to 20 milliseconds Are you doing research on the following? • Specialized Photography • Photochemistry • Photobiology • Fluorescence Lifetimes • E.S.R. Spectrometry We welcome inquiries for custom flashtubes and custom pulsed light systems. Χ Ε N O N corporation
20 Commerce Way, Woburn, MA 01801 (617) 938-3594 Telex: 928204 CIRCLE 184 ON READER SERVICE CARD
RELAX! Help Is As Near As Our Reader Service Card To make sure you're never caught in a bind for all the in formation you need, we've added a feature to Analytical Chemistry. Called, LAB DATA SERVICE, it appears on our reader re ply card insert adjacent to the reply card itself. It lists 46 different classes of products, each with a key number that you can circle on the reply card.
Analytical CHEMISTRY 418 A · ANALYTICAL CHEMISTRY, VOL. 59, NO. 5, MARCH 1, 1987
Newsletter. Vol. 3, No. 3 of Ephortecniques, a quarterly newsletter on elec trophoresis technology, features an ar ticle on scanning densitometry, an swers to readers' questions, and a description of how to choose an appro priate slit aperture for scanning. 6 pp. Haake Buchler 421 Syringe pump. Product bulletin con tains a complete product description of the Microfeed pump, a dual syringe system for chemical engineering appli cations. Included are system capabili ties, specifications, and ordering infor mation. 4 pp. Brownlee Labs 423
Catalogs GC. Megabore column catalog includes a description of megabore technology, information on column installation, a column selection guide, and numerous applications chromatograms, as well as product descriptions and ordering in formation. 52 pp. J & W Scientific 425 Air sampling. 1987 catalog features products for air sampling, worker mon itoring, chemical hazard detection, and industrial hygiene, including sorbent tubes and accessories, sample bags, cal ibrators, filters, impingers, impactors, gas-monitoring badges, and constant flow pumps. A guide to NIOSH, OSHA, and EPA air sampling standards is also included. 78 pp. SKC 426 LC. Catalog includes a filter degasser, helium manifolds and spargers, plasticcoated solvent reservoirs, column jack ets for temperature control, an integra tor and recorder validator, and autoinjector accessories. 8 pp. Aura Indus tries 427 Liquid handling. Disposable products for pipetting, dispensing, measuring, and storing liquids, including pipet tips, test tubes, transfer pipets, cu vettes, microtitration plates, and vials, are featured. Dimensions, chemical data, and applications information for each product are included. 28 pp. BioRad 428
