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AutoSpec is a trisector, double-focusing mass spectrometer that features floating optical bench construction and plug-in sources for rapid change from one ionization mode to another. VG Instruments 403
Manufacturers' Literature GC. Brochure highlights the CP 9000 gas chromatograph, which allows programming, editing, and storage of 12 GC analysis methods. Features include automatic baseline subtraction and oven-temperature plotting. Chrompack 419
Peptide synthesis. Brochure describes the 9000 series PepSynthesizers, which feature three-column simultaneous analog production and are capable of accommodating alternate activation strategies. 8 pp. MilliGen/ Biosearch, Division of Millipore 422
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Centrifugation. Applications data sheet DS-719 describes use of the k factor for estimating run times from previously established run conditions. The formula takes into account the distance through which a particle settles or a gradient forms. Beckman 420
LC. Catalog includes HPLC columns, column heaters, fittings, connectors, cartridge holders, and replacement frits. Analyses of amino acids, drugs, toxins, insecticides, sugars, vitamins, fatty acids, and alcohols are described. 24 pp. J&W Scientific 426
Sample preparation. Handbook discusses preparation of a variety of samples for spectroscopic analysis. Included is information on techniques and hardware for pulverizing, pressing, pelletizing, and dissolution. 104 pp. Spex 421
pH. Catalog features pH, ion, and conductivity meters. Also included are electrodes, cables, adapters, conductivity cells, standards, and buffers. 20 pp. Rainin Instrument Co. 427
Newsletter. The J&W Separation Times, Vol. 2, No. 3, includes information on reversed-phase HPLC columns, solvent analysis using coupled GC capillary columns, and dual-column GC analysis. 12 pp. J&W Scientific 423 AA. Brochure highlights the Model Z9000 Zeeman graphite furnace AA spectrophotometer, which is designed to determine four elements simultaneously and eight elements automatically. 8 pp. Hitachi 424
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Scientific equipment. Catalog lists baths; chemicals; furnaces; glassware; mixers; pH electrodes; plasticware; refractometers; and products for chromatography, electrophoresis, and spectroscopy. 56 pp. Markson Science 428 Chromatography. Catalog features HPLC, micro LC, and SFC columns, including hydrophobic interaction columns; resin-based columns for biomolecules; and specialty columns for carbohydrates, organic acids, proteins, and peptides. 30 pp. Applied Biosystems 429
Pages
ACE GLASS 131 ALLTECH 62 BLUE M 181 CHEMICAL DYNAMICS 197 CONOSTAN 27-28 ELDEX 143 FLUKA CHEMICAL 205 GILMONT 111 GRAPHIC CONTROLS 147 HAMMOND DRIERITE 205 HOTPACK 99 ISCO 63 LABCONCO 145 MILTON ROY/APD 37 NEYTECH/J.M. NEY . . . . 101-175 OMEGA IFC PHARMACIA LKB 65 RUDOLPH RESEARCH 113 SHIMADZU 53 SWAGELOK 76-77 UICINC 101 VALCO 141 WHEATON 99,119 The LabGuide is your true onestop buying source for scientific products.
ANALYTICAL CHEMISTRY, VOL. 60, NO. 22, NOVEMBER 15, 1988 · 1299 A
