S e e the Bausch & Lomb
I
MANUFACTURERS' LITERATURE WANT REALLY
PEAK PERFORMANCE IN GAS CHROMATOGRAPHY?
Chemicals Catalog. Catalogue A, U. S. Edition, 64 pages, lists the chemi cals produced by British Drug Houses Ltd. available through its U. S. distribu tor. Included are microanalytical rea gents, organic analytical standards, liq uids of known refractive index, and special technical bulletins. GallardSchlesinger Chemical Mfg. Corp., 580 Mineola Ave., Carle PL, Long Island, Ν. Υ. 11514. 601 Instrument Catalog. 1966-67 Cata log, 55 pages, contains photographs, de scriptions, specifications, and prices for the company's entire instrument line, including 22 new instruments. Keithley Instruments, Inc., 12415 Euclid Ave., Cleveland 6, Ohio. 602
Amuii Pack with
diatomaceous earth
s u p p o r t ! Anakrom, in accurate 10 mesh cuts — 4 0 / 5 0 through 160/170 mesh — gives the highest resolution available, with greatly reduced " t a i l i n g " and vastly increased efficiency. Five types: Untreated, Acid Washed, Acid and Alcohol-Base Washed, and Vacuum Siliconized varieties of both washed types provide the gas chromatographer with versatility as well as quality. Write today for our illustrated Catalog and Prices of Adsorbents, Phases, Packed Columns and Hardware.
Dealers with offices in most major cities: Perkin-Elmer Corp., Norwalk, Conn./Jarrell-Ash Co., Waltham, Mass./F & M Scientific Corp., Avondale, Pa./BarberColman Co., Rockford, III./Perco Supplies, San Gabriel, Calif.
Radioactivity Measurement. Bulle tin 405 is a 16-page catalog of chemicals, standards, and accessories for radioac tivity measurement. Prices are in cluded. Packard Instrument Co., Inc., 2200 Warrenville Rd., Downers Grove, 111. 603 Instrument Catalog. Gas Chromatog raphy Instrument Catalog 1965/66, 15 pages, briefly describes eight models of gas chromatographs. Included are digi tal integrators and recorders. Wilkens Instrument and Research, Inc., 2700 Mitchell Dr., Walnut Creek, Calif. 604 Resins. Literature describing Dowex A-l chelating resin and Dowex 44 ion exchange resin is available. The Dow Chemical Co., Midland, Mich. 605 Thin Layer Chromatography. A "File of Analytical Procedures" contains 14 reports of separations using Chromagram equipment. Distillation Products Industries, Rochester, Ν. Ύ. 14630. 606
"Registered trademark
A N A L A B S ,
HAMDEN,
I N C .
P.O. B O X 5 2 1 5 CONNECTICUT
06518
Circle No. 17 on Readers' Service Card
Flow Control Units. Bulletin PC, 6 pages, describes a system of flow con nectors, chromatographic columns, res ervoirs, needle valves, and tubing for column chromatography. Chromatog raphy Corp. of America, 60 b. East Main St., Carpentersville, 111. 60110. 607 See Buyers' Guide for all products/sales offices.— Circle No. 171 on Readers' Service C a r d —
SPECTRAL SPECTACULAR PARADE OF THE World's Leading
GRATING INSTRUMENTS S P E C T R O N I C 600
. . . double-beam, double-grating, ratio-indicating. UV-visible range, 200 mu-650 mu. Constant w a v e length a c c u r a c y — 5 A . W r i t e for Cat alog 33-2123.
PRECISION SPECTRO PHOTOMETER
. . . single-beam, double-grating. UVvisible range, 190 ιτιμ-700 mu. Wave length accuracy—.5A. Write for Cat alog 33-2151. Bausch & Lomb, 26326 Bausch St., Rochester, Ν. Υ. 14602.
BAUSCH & L O M B
PITTSBURGH CONFERENCE BOOTHS 9-20-21
