Johns-Manville has three new LC supports to give you five to choose from. And more are coming. Until now, you may not have thought of J-M as a source for liquid chromatography supports and packings. Change your thinking because J-M is now fully involved in liquid chromatography and we're building a line of quality supports and packings you can depend on. Here's a run-down on J-M liquid chromatography products. LC-1 An inert diatomite based support compatible with all liquid phases. Provides fast
and efficient separation of a wide variety of polar compounds when used in a liquid-liquid chromatography mode. LC-2 A pellicular packing having active porous silica layers permanently bonded to an inert spherical solid glass core. Versatile in separating various classes of compounds by selecting the right composition of the solvent system. NEW LC-3 A pellicular packing with alumina bonded to the surface of diatomite. Very efficient in the separation of polycyclic hydrocarbons, alkaloids, amines, aldehydes, ketones, surfactants and plasticizers. NEW LC-4 Pellicular reverse phase packing with a monomolecular layer of octadecyltrichlorosilane chemically bonded to Chromosorb LC-2. Excellent separations of fused ring aromatic hydrocarbons, quinones, herbicides,
barbiturates, steroids, food additives, etc. NEW LC-5 Pellicular reverse phase packing with a monomolecular layer of diphenyldichlorosilane chemically bonded to Chromosorb LC-2. Excellent separations for a wide variety of pharmaceutical and bio-medical compounds. Now, you've got a new source for liquid chromatography products. And there'll be more coming soon. How do you get to your new source? Just call or write for more information. Jack Denboske, Johns-Manville, Filtration & Industrial Minerals Division, Ken-Caryl Ranch, Denver, CO 80217, (303)979-1000.
Johns-Manville
CIRCLE 109 ON READER SERVICE CARD ANALYTICAL CHEMISTRY, VOL. 49, NO. 13, NOVEMBER 1977 · 1171 A
