✦ LIBER ✦

Chromatographic and eletrocphoretic behaviour of primary mono- and diamines on layers of weak and strong ion exchangers

✍ Scribed by Luciano Lepri; Pier Giorgio Desideri; Vanda Coas

Publisher: Elsevier Science
Year: 1973
Tongue: English
Weight: 602 KB
Volume: 79
Category: Article
ISSN: 1873-3778
DOI: 10.1016/s0021-9673(01)85281-x

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✦ Synopsis

The chromatographic behaviour of thirty primary aliphatic amines on Dowex 50 X4 (Na+ and H+), sodium carboxymethylcellulose and Rexyn 102 (Na+) thin layers has been studied using HCl, buffer and salt solutions as eluents. Some interesting separations are reported: the affinity sequences on these exchangers are compared with those observed in column chromatography.

The retention mechanism has been investigated by applying the RM/ -logancl relationship and the activity coefficients in the "mobile phase" are calculated. The factors underlying the ion-exchange,solectivity of these amines are discussed.

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