Process for increasing the resistance to water of pre-coated...

Details Process for increasing the resistance to water of pre-coated... Process for increasing the resistance to water of pre-coated...

B - Operations, Transporting

01

D

252/18, 182/2.1

B01D 15/08 (2006.01) G01N 30/52 (2006.01) G01N 30/93 (2006.01)

Patent

CA 1129782

ABSTRACT OF THE DISCLOSURE A process for increasing the resistance to water of a chromatographic sorbent layer coated onto a support and comprising a binder of (a) salt(s) of (a) polyacrylic acid(s) and/or polymethacrylic acid(s), comprises treating the coated sorbent layer with an acid and then washing and drying the acid treated layers. The thus-prepared chromatographic materials are not only highly water resistant but also have an advantageously low impurity content.

342023

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