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Reference type: Journal
Authors: See HH, Marsin Sanagi M, Ibrahim WAW, Naim AA
Article Title: Determination of triazine herbicides using membrane-protected carbon nanotubes solid phase membrane tip extraction prior to micro-liquid chromatography.
Publication date: 2010
Journal: Journal of Chromatography A
Volume: 1217
Issue: (11)
Page numbers: 1767-1772.
DOI: 10.1016/j.chroma.2010.01.053
Alternative URL: http://www.sciencedirect.com/science/article/B6TG8-4Y7P6WK-1/2/12583f153ac3878d7a343caa6c626549

Abstract: A novel microextraction technique termed solid phase membrane tip extraction (SPMTE) was developed. Selected triazine herbicides were employed as model compounds to evaluate the extraction performance and multiwall carbon nanotubes (MWCNTs) were used as the adsorbent enclosed in SPMTE device. The SPMTE procedure was performed in semi-automated dynamic mode and several important extraction parameters were comprehensively optimized. Under the optimum extraction conditions, the method showed good linearity in the range of 1-100μg/L, acceptable reproducibility (RSD 6-8%, n=5), low limits of detection (0.2-0.5μg/L), and satisfactory relative recoveries (95-101%). The SPMTE device could be regenerated and reused up to 15 analyses with no analyte carry-over effects observed. Comparison was made with commercially available solid phase extraction-molecular imprinted polymer cartridge (SPE-MIP) for triazine herbicides as the reference method. The new developed method showed comparable or even better results against reference method and is a simple, feasible, and cost effective microextraction technique
Template and target information: triazine herbicides, simazine, cyanazine, atrazine, propazine
Author keywords: Membrane extraction, Multiwall carbon nanotubes, triazine herbicides, solid phase extraction

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