Carboxylated multiwalled carbon nanotubes/polydimethylsiloxane, a new coating for 96-blade solid-phase microextraction for determination of phenolic compounds in water

被引：45

作者：

Kueseng, Pamornrat ^{[1
,2
]}

Pawliszyn, Janusz ^{[1
]}

机构：

[1] Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada

[2] Walailak Univ, Sch Sci, Thasala 80161, Nakhon Si Thamm, Thailand

来源：

JOURNAL OF CHROMATOGRAPHY A | 2013年 / 1317卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Solid-phase microextraction; Carboxylated multiwalled carbon nanotubes; Polydimethylsiloxane; Phenolic compounds; TANDEM MASS-SPECTROMETRY; LIQUID-CHROMATOGRAPHY; SAMPLE PREPARATION; NANOTUBES; SYSTEM; NANOMATERIALS; FIBER;

D O I：

10.1016/j.chroma.2013.08.038

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A new thin-film, carboxylated multiwalled carbon nanotubes/polydimethylsiloxane (MWCNTs-COOH/PDMS) coating was developed for 96-blade solid-phase microextraction (SPME) system followed by high performance liquid chromatography with ultraviolet detection (HPLC-UV). The method provided good extraction efficiency (64-90%) for three spiked levels, with relative standard deviations (RSD) <= 6%, and detection limits between 1 and 2 mu g/L for three phenolic compounds. The MWCNTs-COOH/PDMS 96-blade SPME system presents advantages over traditional methods due to its simplicity of use, easy coating preparation, low cost and high sample throughput (2.1 min per sample). The developed coating is reusable for a minimum of 110 extractions with good extraction efficiency. The coating provided higher extraction efficiency (3-8 times greater) than pure PDMS coatings. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：199 / 202

页数：4

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