Special Issue Offer - Analytical Chemistry (ACS Publications)

May 23, 2012 - Special Issue Offer. Anal. Chem. , 1971, 43 (2), pp 152A–152A. DOI: 10.1021/ac60297a833. Publication Date: February 1971. ACS Legacy ...
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N e w Becker 4 0 7 Series Gas C h r o m a t o g r a p h s

Unique research instruments priced f r o m only $2,175.00 • True Computer-Compatibility —A separate output direct from the chromatograph provides a full-range signal for integration. • Built-in Flow Controls —An exclusive, pressure-regulating flow controller is part of the instrument, not an option. Provides accuracy better than 0 . 1 % . • Research-Quality Oven —A full size (7% χ 7% x 8 % " ) oven with a temperature range of 30 to 400°C and stability within 0.1 °C. • Wide-Range Electrometer —Low system noise, linear dynamic range of more than 200,000, and a time constant of 50 milliseconds produce clean signals which allow full use of electronic integrators and computers. The low cost of Series 407 Chromatographs was achieved by limiting their ver­ satility, not by compromising quality. That makes them an ideal purchase for the research lab with an urgent need to add capacity, but a limited budget. 407 Series instruments can be used to implement techniques developed on more sophisticated chromatographs, without loss of data comparability. Clip and mail the coupon for 16-page Catalog 1124 Β

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Special Issue Offer The July-August 1969 issue of CHEMISTRY, devoted to scientific meth­ ods of crime investiga­ tion, is available at $1.00 for the first copy and 50 cents for each additional copy. Feature articles include "Di­ mensions of Crime Today", "Ori­ gin of Modern Criminology", "Scientific Methods of Crime In­ vestigation", and "Chromosomes and Crime". Also included: the story of how the lie detector was developed; how cause of an air­ plane crash was deduced from a single seat cushion; and a com­ prehensive reading list on crime and scientific methods used in crime investigation. Some readers' comments : comprehensive; fun-reading; a fascinating issue; a work of art in make-up and content. Send your order to : Reprint Department American Chemical Society 1155 16th St. N.W. Washington, D.C. 20036

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Circle No. 154 on Readers' Service Card 152 A

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ANALYTICAL CHEMISTRY, VOL. 43, NO. 2, FEBRUARY 1971