Determination of haloacetic acids in drinking water with positive chemical ionization-gas chromatography-mass spectrometry
- Resource Type
- article
- Authors
- WANG Hong; SHEN Weijian; ZHANG Feng; GE Jiachun; DING Tao; MA Xingkong; YU Keyao; HU Guoshen
- Source
- Zhongguo shipin weisheng zazhi, Vol 35, Iss 3, Pp 333-338 (2023)
- Subject
- positive chemical ionization
gas chromatography-mass spectrometry
drinking water
haloacetic acids
Food processing and manufacture
TP368-456
Nutrition. Foods and food supply
TX341-641
- Language
- Chinese
- ISSN
- 1004-8456
ObjectiveGas chromatography-mass spectrometric (GC-MS) with positive chemical ionization technique (PCI) was developed to detect nine haloacetic acids in drinking water.MethodsThe samples were extracted by methyl tert-butyl ether, derived by acidified methanol, and analyzed by GC-MS with PCI source under selected ion monitor mode. The matrix-matched calibration curve internal standard method was used for quantification.ResultsThe nine haloacetic acid compounds showed good linear relationship in the range of 0.2-100 μg/L, with the correlation coefficients over 0.99. And the limits of quantification (S/N=10) ranged from 0.107 to 1.640 μg/L. The average recoveries of nine haloacetic acid compounds were 81.8%-110.2%, and the relative standard deviations were 3.9%-8.8%.ConclusionThe method has good precision and sensitivity, and can be used for the determination of haloacetic acid compounds in drinking water.