Determination of Trace Chloroanilines in Environmental Water Samples Using Hollow Fiber-Based Liquid Phase Microextraction |
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Authors: | Anna Young Guida Lai Brian Hung Amy Yuen Yi He |
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Affiliation: | 1. Department of Sciences, John Jay College, The City University of New York, 445 W59th Street, New York, NY, 10019, USA 2. New York Police Department Forensic Laboratory, 150-14 Jamaica Avenue, Jamaica, NY, USA 3. Macau Science Center, Avenida Dr. Sun Yat-Sen, Macau, China
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Abstract: | A liquid phase microextraction method using hollow fiber to support extraction solvent was developed for enrichment of trace level chloroanilines in environmental water samples. Target analytes, 2-chloroaniline, 3-chloroaniline, 2,3-dichloroaniline, 2,4-dichloroaniline, 3,4-dichloroaniline, and 3,5-dichloroaniline were determined using gas chromatography-flame ionization detector after extraction. Experimental conditions that affect extraction efficiency were investigated and optimized. The proposed method showed a wide linear range from lower ??g L?1 to 1,000 ??g L?1, low detection limits (??5.1 ??g L?1), and reasonable relative standard deviations (RSDs < 13%). Feasibility of the method was evaluated by analyzing river water samples collected from the Hudson River and the East River in New York City. |
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