WANT
MANUFACTURERS' LITERATURE
REALLY
PEAK PERFORMANCE IN GAS CHROMATOGRAPHY?
Preparative Electrophoresis. Models FF-1 and FF-2 free-flowing electrophoretic separators are described in the 10-page Bulletin No. BR 147. Brinkmann Instruments, Inc., Cantiague Rd., Westbury, N. Y. 11590. 601 Iodine-125 and Iodine-131 Labelled Compounds. An 8-page schedule lists 49 iodine-125 or iodine-131 labelled compounds available from the com pany. Nuclear-Chicago Corp., 359 E. Howard Ave., Des Plaines, 111. 60018. 602
Pack with
WM diatomaceous earth s u p p o r t ! A n a k r o m , in a c c u r a t e 10 mesh cuts — 4 0 / 5 0 through 1 6 0 / 1 7 0 mesh — gives the highest r e s o l u t i o n available, with greatly reduced " t a i l i n g " and vastly increased efficiency. Five types: U n t r e a t e d , A c i d Washed, A c i d and Alcohol-Base Washed, and V a c u u m S i l i c o n i z e d varieties of both washed types provide t h e gas chromatographer w i t h v e r s a t i l i t y as well as q u a l i t y . Write today for our i l l u s t r a t e d Catalog and Prices of Adsorbents, Phases, Packed C o l u m n s and Hardware. Dealers with offices in most major cities: Perkin-Elmer Corp., Norwalk, Conn./Jarrell-Ash Co., Waltbam, Mass./F & M Scientific Corp., Avondale, Pa./BarberColman Co., Rockford, Ill./Perco Supplies, San Gabriel, Calif. "Registered trademark
2,4-Dinitro-Phenyl-Hydrazine. A 10page brochure describes the reactions of this compound, its use in a series of analytical procedures, and applications in the steroid field. Gallard-Schlesinger Chemical Mfg. Corp., 584 Mineola Ave., Carle PI., Long Island, Ν. Υ. 11514.
MICRO VISCOMETER Measures micro samples (1cc) of both Newtonian and non-Newtonian materials. Maintains known and con stant shearing rates. Sampling cup assembly is equipped with a water jacket for accurate temperature control. Operates on the same proven principle as all Brookfield SynchroLectric Viscometers. If micro samples are your Theo logical problem, the Wells-Brookfield micro viscometer is the logical solution. Prices and complete infor mation on request.
603
Geiger-Mueller Tubes. A catalog gives technical data and prices for 50 different organic or halogen filled tubes. Tracerlab, 1601 Trapelo Rd., Waltham, Mass. 02154. 604
Brookfield ENGINEERING LABORATORIES, INC. Stoughton 27, Massachusetts
Catalog. Catalog No. 10 is a listing of high-purity lipid chemicals, thin layer chromatography supplies, and gas chromatography supplies. Applied Sci ence Laboratories, Inc., P. O. Box 440, 139 N. Gill St., State College, Pa. 16801. 605
Hydrocarbon Analyzer. Bulletin K-16 describes a total hydrocarbon analyzer for on-stream measurement in process liquids or vapors. The Foxboro Co., Foxboro, Mass. 02035. 606 Analytical Standards. A list of ana lytical standards for pesticides, herbi cides, and fungicides includes 76 differ ent compounds. Pan ta Industries, Inc., 637 Cedar St., Berkeley, Calif. 94710. 607
ANALABS A N A L A Β S , INC. P.O. B O X 5 2 1 5 HAMDEN, CONNECTICUT 06518 Circle No. 16 on Readers' Service Card
Pulse Generator. Model 109 pulse generator is illustrated and discussed in 2-page Technical Bulletin 109. Datapulse, 509 Hindrv Ave., Inglewood, Calif. 90306. " 608 Circle No. 126 on Readers' Service Card VOL. 3 8 , N O . 4 , APRIL 1 9 6 6
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