A COMPACT ΑΙΜΟ INEXPENSIVE GAS CHRQMATOGRAPH
Manufacturers' Literature
Analytical Advances. Vol. 2, No. 3, 16 pages, features an article on the appli cation of the 7600A chromatograph sys tem to simulated distillation in the pe troleum industry. Other articles dis cuss a new GC detector for phosphoruscontaining pesticides and calibration of thermistors. Hewlett-Packard, Route 41 and Starr Rd., Avondale, Pa. 19311 Beckman Bulletin. Vol. IV, No. 3, 8 pages, describes a new X-ray diffractometer, three new atomic absorption systems, and other equipment. Beckman Instruments, Inc., Fullerton, Calif. 92634 Current Laboratory Practice. Vol. 1, No. 5, 32 pages, features an article on toxicological separations, and includes an electrophoresis supplement with other articles and information of in terest to laboratory workers. Gelman Instrument Co., 600 South Wagner Rd., Ann Arbor, Mich. 48106 Aminco Laboratory
News.
V o l . 25,
No. 2, 24 pages, contains as a lead ar ticle a theory that schizophrenia is a biochemical disease. Other articles cover studies of the permeability of red blood cells, direct measurement of heat of ionization in biological samples, de velopment of a continuous-flow bloodcell separator, and others. American Instrument Co., 8030 Georgia Ave., Silver Spring, Md. 20910
ΓΗΕ BURRELL KROMO-TOG MODEL. K-4
E-C Bulletin. Vol. IV, No. 2, 4 pages, discusses in its feature article the prac tical use of polyacrylamide gel electro phoresis. Other articles discuss an ed ucational minicell and applications of a vertical gel cell for RNA and isozyme separations. E-C Apparatus Corp., 755 St. Marks St., Philadelphia, Pa. 19104
An accurate a n d dependable gas chromatograph that performs com parable to a two or three thousand The Needle. Vol. 8, No. 3, an 8-page small-form publication contains an ar dollar instrument where applications ticle on donor and recipient compati do not require programmed analysis. bility testing as done a t the UCLA Yet, the Burrell Kromo-Tog Model Medical Center in Westwood, Calif. K-4 costs less than $500.00. It fea Hamilton Co., P.O. Box 307, Whittier, tures a 4 filament thermal conduc Calif. 90608 tivity detector that offers the most universal detection system avail able, and isothermal operations up Scientific Instrument News, Chroma tograph Series. Vol. 2, No. 2, 28 msmmmmmmmammmmmtmmmmmm to 4 0 0 ° C provide almost unlimited pages, contains an article on "Gas-Liq applications. The Kromo-Tog Model K-4 is ruggedly built to take uid Chromatography of Protein Amino hard use, a n d is an ideal t e a c h i n g a i d . Contact your Burreil Acids" by Charles W. Gehrke and Representative for more information or write: descriptions of follow-up experiments of amino acid analysis according to D r . B U R R E L L CORPORATION Gehrke's method. Shimadzu SeisaBURRELL kusho, Ltd., 1, Nishinokyo KuwaSCIENTIFIC INSTRUMENTS AND LABORATORY SUPPLIES baracho, Nakagyo-ku, Kyoto, Japan 2223 FIFTH AVENUE, PITTSBURGH. PA. 15219 124 A ·
Circle No. 154 an Readers' Service Card ANALYTICAL CHEMISTRY, VOL. 4 1 , NO. 14, DECEMBER 1969
