Kodak (which has specialized in cellulose chemistry for generations) has developed an extremely pure, nonfibrous cellulose
Amino acids—18 different ones—migrated by butanol:acetic acid:water. Ever see chromatographic performance like this on paper? Note absence of impurity bands. This new EASTMAN CHROMAGRAM Sheet for partition TLC yields far better resolution than paper—in minutes instead of hours—with the same aqueous and strongly polar organic solvents you use with paper, and the same visualization reagents. It is also right for electrophoresis. The purity of this coating makes unnecessary the pre-migration step often recommended for TLC on cellulose.
and has learned how to keep it on poly(ethylene terephthalate) sheet in a tight 160//-thick layer without a binder.
CARE FOR A SAMPLE?
Distillation Products Industries (Division of Eastman Kodak Company) Rochester, Ν. Υ. 14603 Π Please send me a sample of the new cellulose-coated EASTMAN CHROMAGRAM Sheet. Π I'd like to know about the convenient EASTMAN C H R O M A G R A M Developing Apparatus and about C H R O M A G R A M Sheet for adsorption TLC. NAMEORGANIZATION
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