Please use this identifier to cite or link to this item:
|Title:||Application of liquid-phase microextraction and on-column derivatization combined with gas chromatography-mass spectrometry to the determination of carbamate pesticides||Authors:||Zhang, J.
|Issue Date:||2-Jun-2006||Citation:||Zhang, J., Lee, H.K. (2006-06-02). Application of liquid-phase microextraction and on-column derivatization combined with gas chromatography-mass spectrometry to the determination of carbamate pesticides. Journal of Chromatography A 1117 (1) : 31-37. ScholarBank@NUS Repository. https://doi.org/10.1016/j.chroma.2006.03.102||Abstract:||A method has been established for the determination of five carbamate pesticides in water samples using liquid-phase microextraction (LPME) followed by on-column derivatization and gas chromatography-mass spectrometric (GC-MS) determination. Trimethylphenylammonium hydroxide (TMPAH) and trimethylsulfonium hydroxide (TMSH) were used as derivatization reagent for extracts prior to GC-MS analysis as carbamate pesticides are thermally labile compounds. Parameters that affect the extraction efficiency (selection of organic solvent and extraction time) and derivatization efficiency (choice of derivatization reagent and concentration of derivatization reagent) were investigated. The proposed method provided good enrichment factors up to 224, with reproducibility ranging from 4.86 to 7.81%, and good linearity from 1 to 400 μg/L. The limits of detection (LODs) ranged between 0.2 and 0.8 μg/L (S/N = 3) using GC-MS with selective ion monitoring. This method was applied to the determination of carbamate pesticides in tap water and waste water. © 2006 Elsevier B.V. All rights reserved.||Source Title:||Journal of Chromatography A||URI:||http://scholarbank.nus.edu.sg/handle/10635/75597||ISSN:||00219673||DOI:||10.1016/j.chroma.2006.03.102|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Apr 15, 2019
WEB OF SCIENCETM
checked on Apr 1, 2019
checked on Apr 6, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.