Determination of triazine herbicides using membrane-protected carbon nanotubes solid phase membrane tip extraction prior to micro-liquid chromatography

作者：See H H; Sanagi M Marsin^*; Ibrahim Wan Aini Wan; Naim A A

来源：Journal of Chromatography A, 2010, 1217(11): 1767-1772.

DOI：10.1016/j.chroma.2010.01.053

• Membrane extraction
• Multiwall carbon nanotubes
• Triazine herbicides
• Solid phase extraction

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 1-100 mu g/L, acceptable reproducibility (RSD 6-8%, n=5), low limits of detection (0.2-0.5 mu g/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 commerically available solid phase extraction-molecular imprinted polymer cartridge (SPEMIP) for triazine herbicides as the reference method.

• 出版日期2010-3-12