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SIMULTANEOUS DETERMINATION OF 23 VOLATILE CHLORINATED HYDROCARBONS AND BENZENE SERIES IN SOIL SAMPLES |
LI Li-jun1, HE Lian1, BIAN Jing-hui2, SUN Ning2 |
1. Shenyang Institute of Geology and Mineral Resources, CGS, Shenyang 110032, China; 2. Shenyang Chemical Co. Ltd., Shenyang 110026, China |
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Abstract A method for simultaneous determination for 23 volatile chlorinated hydrocarbons and benzene series in soil samples by gas chromatography-mass spectrometry (GC-MS) with purge and trap pretreatment is introduced. The conditions of purge and trap, the qualification of GC-MS, and the centrifuge are confirmed. Under the best conditions, the liner range of the standard curve is 0.32-200.0 μg/kg. The detection limits range of the method for the 23 volatile organic compounds are 0.077-0.69 μg/kg. The average recoveries are 86.5% to 117.5%, with precision of 1.6%-8.2% (n=7). This fast and accurate method can be applied to determinate the 23 volatile organic compounds in batch soil samples with satisfactory results.
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Received: 31 October 2011
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