期刊
JOURNAL OF SEPARATION SCIENCE
卷 34, 期 6, 页码 675-680出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.201000807
关键词
Hair dye samples; High-performance liquid chromatography; Polymer monolith microextraction; Nitroanilines
资金
- Jilin University
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences [SKLEAC2010006]
In this study, a novel method for the determination of nitroanilines in hair dye samples has been developed based on poly(methacrylic acid-co-ethylene glycol dimethacrylate) monolith microextraction (PMME) and high-performance liquid chromatography (HPLC) analysis. Four nitroanilines, p-nitroaniline (PNAL), m-nitroaniline (MNAL), o-nitroaniline (ONAL), and 2,4-dinitroaniline (DNAL), are studied as representatives. To obtain optimum extraction efficiency, several experimental parameters including sample flow rate, sample volume, sample pH, and eluent flow rate have been investigated. Under the optimal experimental conditions, the linear regression coefficients of the standard curves are greater than 0.9990. The limits of detection for p-nitroaniline, m-nitroaniline, o-nitroaniline, and 2,4-dinitroaniline are 0.012, 0.008, 0.018, and 0.005 mu g/mL, respectively. The intraday and interday relative standard deviations are less than 3.1 and 5.4%, respectively. The proposed method is simple, rapid, sensitive, and competent when used for the determination of nitroanilines in hair dye samples and the accuracy is assessed through recovery experiments.
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