Preconcentration technique for nonylphenol using cellulose cotton with homogenous liquid–liquid extraction for liquid chromatographic analysis

被引:5
作者
Yoshitaka Takagai
Toshio Kubota
Ryoutaro Akiyama
Eiji Aoyama
Shukuro Igarashi
机构
[1] Ibaraki University,Department of Materials Science, Faculty of Engineering
来源
Analytical and Bioanalytical Chemistry | 2004年 / 380卷
关键词
Nonylphenol; Alkylphenol; Preconcentration; Cellulose; Homogeneous liquid–liquid extraction; Chromatography;
D O I
暂无
中图分类号
学科分类号
摘要
A powerful preconcentration method for nonylphenol (NP) has been developed for liquid-chromatography by combining the use of cellulose cotton (solid-phase extraction) with homogeneous liquid–liquid extraction. A 100 ml of sample solution was preconcentrated using cotton, and the eluate obtained (acetonitrile; 5 ml) was further preconcentrated to 50 μl within 10 min using a homogeneous liquid–liquid extraction method (volume ratio, 2,000-fold; 100 ml→ 50 μl). The sample concentration increases from preconcentration was 1,599-fold, and NP was extracted into the sedimented phase at 80%. The proposed method was applied to high performance liquid chromatography with fluorescence detection (FL/HPLC); the lowest determination limit obtained was 1.0×10−9 mol l−1.
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页码:351 / 354
页数:3
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