Fast, high-performance liquid chromatography with new Chromosorb" LC-2 packing Johns-Manville Technology brings you the second in the Chromosorb LC support series. Now with Chromosorb LC-2 adsorbent, J-M has developed a pellicular packing having active porous silica layers permanently bonded to an inert spherical solid glass core. (The scanning electron micrograph below shows one of these spheres magnified 1500 times.)
Columns packed with high-speed Chromosorb LC-2 support provide high efficiency and rapid mass transfer, with exceptional resolution and quick equilibration. The result: reproducible retention data of various classes of compounds. Chromosorb LC-2 adsorbent carries on the consistent quality you expect from J-M. This Chromosorb support has a narrow particle size of 33/44 microns, uniform pore size and a surface areaof 15/30 m 2 /g. Because of its spherical shape and narrow particle size distribution, Chromosorb LC-2 adsorbent easily packs to a uniform density by tapping, and provides low column pressures and high column efficiency.
CIRCLE 122 O N READER SERVICE CARD
1236 A · ANALYTICAL CHEMISTRY, VOL. 47, NO. 14, DECEMBER 1975
Chromosorb LC-2 is the newest Chromosorb support in the LC series, following LC-1, the first diatomite-based support for liquid chromatography. For information about LC-2, LC-1 or the complete line of Chromosorb supports for gas chromatography, call Jack Denboske at (303) 770-1000, or write Johns-Manville, Box 5705-M, Denver, Colorado 80217.
JM Johns-Manville
