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- W2393601917 abstract "Gas chromatography with sample pretreatment by automatic head-space solid phase micro-extraction was applied to the determination of 2,4,6-trichlorophenol(TCP) and pentachlorophenol(PCP) in drinking water.The water sample(10.0 mL) was added to a 20 mL-head-space flask in which 0.5 mL of 0.1 mol·L~(-1) HCl and 4.0 g of NaCl were added previously.After capping the flask tightly,the polyacrylate extractor (85μm) was inserted into it and shaked at the rate of 500 r·min~(-1) at 60℃for 40 min to extract the chlorophenols,which were then desorbed and determined by GC.HP-5 capillary column was used for separation with programmed temperature elevation from 40℃to 280℃.Flow-rate of carrier gas taken was 3 mL·min~(-1). Linear relationships between values of peak area and mass concentration of TCP and PCP were obtained in the ranges within 55μg·L~(-1) and 12μg·L~(-1) respectively,with detection limits(3S/N) of 0.15μg·L~(-1)(for TCP) and 0.13μg·L~(-1)(for PCP).Tests for recovery and precision were made by addition of standards at 3 concentration levels,giving results of recovery in the range from 90.0%to 112.8%,and RSD's(n=6) from 3.0%to 4.9%." @default.
- W2393601917 created "2016-06-24" @default.
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- W2393601917 date "2011-01-01" @default.
- W2393601917 modified "2023-09-24" @default.
- W2393601917 title "GC Determination of Chlorophenols in Drinking Water with Head-space Solid Phase Micro-extraction" @default.
- W2393601917 hasPublicationYear "2011" @default.
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