Application of flat-sheet membrane extraction to determination of trihalomethanes in chlorinated drinking water

초록

Nonporous silicone flat-sheet membrane extraction with a cryofocusing (-30A degrees C) sorbent interface coupled to gas chromatography-mass spectrometry was applied to the determination of trihalomethanes in chlorinated drinking water. The flow rates of the donor and acceptor phases in the membrane extraction module were optimized at 28-30A degrees C to 1.5 and 55 mL/min, respectively. The methodology as established showed method detection limits of 0.2 mu g/L or less, high-linearity calibration curves, and high accuracy and precision.

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