Measurement of nitrophenols in air samples by impinger sampling and supported liquid membrane micro-extraction

被引：22

作者：

Bishop, Edmund J.

Mitra, Somenath

机构：

[1] New Jersey Inst Technol, Dept Chem & Environm Sci, Newark, NJ 07102 USA

[2] Rutgers State Univ, Dept Chem, Newark, NJ 07102 USA

来源：

ANALYTICA CHIMICA ACTA | 2007年 / 583卷 / 01期

关键词：

membrane separation; phenols; liquid phase micro-extraction;

D O I：

10.1016/j.aca.2006.10.008

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A sensitive analytical technique for the detection of trace nitrophenols in air has been developed. The steps in this process are impinger sampling to capture the nitrophenols in an aqueous phase, which is then followed by supported liquid membrane micro-extraction (SLMME) and analytical detection. The nitrophenols were analyzed by reverse-phase high performance liquid chromatography (HPLC) and did not require any derivatization. Method detection limits (MDL) of 0.5-1.0 ng L-1 from aqueous solutions and 3.1-46.7 ppbV from air extractions were observed. The high enrichment of nitrophenol in SLMME allowed low detection limits even with HPLC-UV detection. SLMME is an inexpensive, easy to use procedure that employs disposable membrane fibers. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：10 / 14

页数：5

共 20 条

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