AC BRIEFS Highlights of the scientific and technical articles in this issue
Theory of Gas Solid Chromatography. Potential for Analytical Use and the Study of Surface Kinetics T h e study shows that gas solid chromatography has real advantages in terms of column efficiency and high speed analysis. Also shown is its great potential for enhancing selectivity by making use of the steric nature of the adsorption forces and its real potential for the measurement of surface kinetics.
Composition of Straight Chain Alkylbenzenes by Gas Chromatography Best separation was achieved with a DC-550 liquid substrate and temperature increased uniformly at 1.5° per minute between 120° and 170° C. Linear alkylbenzenes with side chain ranging from C» t o Cu were completely separated in 65 minutes. W . J . C A R N E S , Procter & G a m b l e Center, Cincinnati, O h i o 4 5 2 1 7
J. CALVIN GIDDINGS, Department of Chemistry, University of Utah, Salt Lake City 12, Utah
C o . , Ivorydale
Technical
A n a l . C h e m . 36, 1197 ( 1 9 6 4 )
Anal. Chem. 36, 1170 (1964)
Quantitative Analysis of Bisphenol A by Gas Liquid Chromatography Capillary Gas Chromatography Using Micro-Volume Thermal Conductivity Detectors Micro-volume cells will, without prior calibration, produce data that are within 10% of the true value. Also, they are nondestrutive and exhibit a response for materials that escape ionization detection. D. L. C A M I N , R. W . KING, and S. D. S H A W H A N , Sun Oil Company, Marcus Hook, Pa.
The method is applicable t o the determination of 2,4bis (
