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- Title
Application of an ampholine-functionalized hybrid organic-inorganic silica material for the SPE of aromatic amines.
- Authors
Chen, Yihui; Wang, Tingting; Ma, Junfeng; Liang, Zhen; Chen, Mingliang; Fang, Jianghua; Gao, Haoqi; Zhang, Lihua; Zhang, Yukui
- Abstract
An SPE cartridge based on an ampholine-functionalized hybrid organic-inorganic silica sorbent has been adopted for the analysis of aromatic amines including 4-aminobiphenyl, benzidine, 2-naphthylamine, p-chloroaniline, 2,4,5-trimethylaniline, and 3,3′-dichlorobenzidine. Crucial variables governing the extraction efficiency of the material such as the pH of sample, sample loading volume, solvent used for elution, and elution volume have been thoroughly optimized. The adsorption capacities for the six aromatic amines ranged from 0.17 to 1.82 μg/mg. The recoveries of aromatic amines spiked in textile samples ranged from 78.9 to 103.0%, with RSDs of 1.1-11.9% ( n = 3). Moreover, the extraction efficiency of the ampholine-functionalized hybrid organic-inorganic silica sorbent was at least comparable with that of Oasis WCX.
- Subjects
SOLID phase epitaxial growth; AROMATIC amines; AMINOBIPHENYL compounds; BENZIDINE; NAPHTHYLAMINES; CHLOROANILINE
- Publication
Journal of Separation Science, 2014, Vol 37, Issue 1/2, p143
- ISSN
1615-9306
- Publication type
Article
- DOI
10.1002/jssc.201300964