Concentration of nonylphenol and its polyethoxylated derivatives by polymer-mediated extraction

被引：14

作者：

Saitoh, T

Yoshida, Y

Matsubara, C

机构：

[1] Nagoya Univ, Grad Sch Engn, Dept Mol Design & Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[2] Tokyo Univ Pharm & Life Sci, Hachioji, Tokyo 1920392, Japan

来源：

JOURNAL OF CHROMATOGRAPHY A | 2000年 / 891卷 / 01期

关键词：

nonylphenol; polyethothylate; N-isopropylacrylamide;

D O I：

10.1016/S0021-9673(00)00631-2

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Polymer-mediated extraction based on thermoresponsive precipitation of poly(N-isopropylacrylamide) [PNIPAAm] was applied to the concentration of amphiphilic compounds, nonylphenyl polyethoxylates (NPnEOs), in water. Among these nonionic surfactants, NPnEOs possessing the number, n, of ethoxy unit less than 5 were quantitatively recovered in polymer precipitates when a 0.100-g portion of PNIPAAm was used for a 10 mi sample solution. Torelance limit (30 ppm) against a typical industrial anionic surfactant, sodium dodecylsulfate, strongly suggests the potential to use the present method for practical purposes. After preconcentration, trace nonylphenol and mono-ethoxylated nonylphenol (ppb-level) in a river water sample were successfully determined by high-performance liquid chromatography with ultra-violet photometric detection. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：69 / 74

页数：6

共 24 条

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