Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10559608 | Talanta | 2009 | 8 Pages |
Abstract
A semiautomatic method has been proposed for the determination of different types of amines in water samples including anilines, chloroanilines, N-nitrosamines and aliphatic amines. The analytes were retained on a solid-phase extraction sorbent column and after elution, 1 μL of the extract was analysed by gas chromatography coupled with electron impact ionization mass spectrometry. A systematic overview is given of the advantages and disadvantages of several sorbents (LiChrolut EN, Oasis HLB, RP-C18, graphitized carbon black, fullerenes and nanotubes) in the retention of amine compounds and based on sensitivity, selectivity and reliability. The retention efficiency for the studied amines was higher (ca. 100%) with LiChrolut EN and Oasis HLB than it was with RP-C18 and fullerenes (53 and 62%, respectively, on average). Detection limits of 0.5-16 ng Lâ1 for the 27 amines studied were obtained when using a sorbent column containing 75 mg of LiChrolut EN for 100 mL of sample, the RSD being lower than 6.5%. The method was applied with good accuracy and precision in the determination of amines in various types of water including river, pond, tap, well, drinking, swimming pool and waste.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Beatriz Jurado-Sánchez, Evaristo Ballesteros, Mercedes Gallego,