NEW PRODUCTS
11
10 parts per trillion of chlorinated pesticide"
MC&B PESTICIDEQUALITY SOLVENTS This new line of solvents is specially purified for use in the determination of pesticide residues by GLC utilizing electron capture detection. It is the finest line of solvents for this purpose. Certified to contain no interfering substance greater than that equivalent to 10 parts per trillion of a chlorinated pesticide. All of these PESTICIDEQUALITY Solvents are now available from your MC&B distributor: Acetone, Acetonitrile, Benzene, 2-Butanone, Butyl Alcohol, iso-Butyl Alcohol, Carbon Tetrachloride, Chloroform, Cyclohexane, Dichloromethane, Dimethylformamide, p-Dioxane, Ether, Ethyl Acetate, Ethyl Alcohol, Heptane, Hexane, Methanol, 2-Methoxyethanol, 2-Methylpentane, Methylsulfoxide, Petroleum Ether, iso-Propyl Alcohol,Toluene, 2, 2, 4-Trimethylpentane.
WRITE FOR BOOKLET containing data, bibliography and prices to MC&B, Box 85, East Rutherford, N.J.
MC/B Manufacturing Chemists Norwood, Ohio, E. Rutherford, N. J., Los Angeles, Calif. Circle No. 125 on Readers' Service Cam
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ANALYTICAL CHEMISTRY
Model H632 is first in the new Series 32 line of computing systems. Designed for scientific and control uses, the H632 has from one to four central input-output processors which have eight standard program levels. The basic computer is made up of a central processor, input-output processor, multiprocess controller, memory access director, KSR-35 Teletype, and 8,192 words of memory. Small-tolarge computers may be designed around the H632. Honeywell Computer Control Division, Old Connecticut Path, Framingham, Mass. 0 1 7 0 1
415
Spectrocomp System permits on-site computation of spectrochemical analysis data. Results are available immediately, without time-sharing delays. The system, including Model RS-1 high speed digital readout and the selected computer, provides percentage concentration, averaging, corrections, selections, and computations in high speed emission spectrochemical analysis. All programming is included. Four Spectrocomp systems are available and all are usable with any emission spectrometer. Spectrochemical Equipment Division of Baird-Atomic, Inc., 33 University Rd., Cambridge, Mass. 0 2 1 3 8 416
Coors U.S.A. Filtration Equipment first because
it lasts,
and lasts,
and lasts
Coors laboratory filtration equipment is available in many sizes and styles. Made of strong, impervious chemical porcelain, built to take normal laboratory abuse year after year. Easy to clean, nonreactive. Coors filtration equipment comes in 15 styles, 74 sizes, including Buchner funnels, Hirsch funnels, conical funnels, filter cones, Gooch crucibles, Bitumen crucibles, Caldwell crucibles, discs, cups and plates. For micron-size filtration, Coors offers porous-bottom crucibles, Emich micro-filtersticks, and a variety of porous cups, plates and cylinders. See your local laboratory-supply dealer or send for catalog. Coors Porcelain Company, Golden, Colorado 80401 Circle No. 10 on Readers' Service Card
