Retention behavior of methylamines, ethylenediamine and N-methyl-substituted ethylenediamines on a cation-exchange resin having a polycarboxylic acid as the functional group

Autor:	Yoshinori Inoue, Naoto Shimizu, Tetsushi Sakai, Yoshiko Shimomura, Hiroki Kumagai
Rok vydání:	1996
Předmět:	Chromatography Organic Chemistry Ethylenediamines Ethylenediamine General Medicine Biochemistry Analytical Chemistry chemistry.chemical_compound chemistry Nitric acid Diamine Amine gas treating Methylamines Ion-exchange resin Methyl group
Zdroj:	Journal of Chromatography A. 739:327-331
ISSN:	0021-9673
DOI:	10.1016/0021-9673(96)00248-8
Popis:	The retention behavior of ethylenediamine and N-methyl-substituted ethylenediamines on a polycarboxylic acid-type cation-exchange resin was investigated. These diamines were retained as 2+ cations on the polycarboxylic acid-type cation-exchange resin using nitric acid solution as the eluent. The capacity factor of the N-methyl-substituted ethylenediamines increased with increasing number of methyl groups. The retention of these diamine compounds was only slightly affected by adding CH 3 CN to the eluent. On the other hand, the retention of methylamines was strongly affected. This result would be due to the difference in the hydrophobic effect of the methyl group for the hydration state of the amines.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0f96c70ed6139bfa823d573e9d7d6606 https://doi.org/10.1016/0021-9673(96)00248-8 Zobrazit plný text záznamu Full Text from ScienceDirect