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DEXSIL High Temperature GC Phases
in ANY i
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{ QUANTITY J FROM THE MANUFACTURER
Extended column life at 400° and beyond Separate amino acids, drugs, paraffins, hydrocarbons, natural waxes, pesticides, fatty acids, steroids, alcohols, etc. —at column temperatures of 400°C and more. Routinely. With outstanding selectivity. Columns packed with Dexsil 300GC have shown negligible bleed from 20° to 450° C. Limited life applications can be performed at temperatures to 500° C. Two other Dexsil polymers — 400GC and 410GC — can be selected according to appli cation, and used at temperatures to 400° C.
"ANAL V f K M CHlMlCALS SINCI 1 9 3 1
G. F R E D E R I C K SMITH CHEMICAL COMPANY 867 McKinley Ave.
Columbus.Ohio 43223
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*™ 2 2 4 * 5 3 4 3
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When used at lower temperatures up to 350° C, the Dexsils offer the advantages of using more sensitive GC settings and increasing column life because of the Dexsils' low bleed. Users report column life under routine conditions at 2, 3, 4 years and more.
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DEXSIL
295 Treadwell Street · Hamden, CT 06514 ;203) 288-3509
® Registered Trade Mark Dexsil Chemical Corporation Hamden CT. CIRCLE 69 ON READER SERVICE CARD
200 A · ANALYTICAL CHEMISTRY, VOL. 50, NO. 2, FEBRUARY 1978
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