GUOFeng-qiao,GUI Ping,WUJing-jing,et al.LLE/GC-MS/MS for Simultaneous Determination of Four Plasticizers in Drinking Water[J].China Water & Wastewater,2022,38(12):22-27.
LLE/GC-MS/MS for Simultaneous Determination of Four Plasticizers in Drinking Water
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第12期
Page:
22-27
Column:
Date of publication:
2022-06-17
- Keywords:
- plasticizer; LLE/GC-MS/MS; internal standard method
- Abstract:
- A liquid-liquid extraction and gas chromatography-tandem mass spectrometry (LLE/GC-MS/MS) detection method for simultaneous determination of four plasticizers was established. The water samples were extracted with 2 mL n-hexane and detected directly on the instrument. It avoided the introduction of the plasticizer in environment into the detection process, overcame the influence of detection background on the detection results, and had the advantages of simple operation and environmental protection. The results of the interlaboratory comparison showed that MQL of the four plasticizers(DEP、DBP、DOA、DEHP) was in the range of 0.084-0.680 μg/L, the recoveries of source water, product water, pipe water and pure water were in the range of 63.3%-145%, and the precision was in the range of 1.1%-32%. The method can simultaneously detect all the four plasticizers specified in Standards for Drinking Water Quality (GB 5749-2022), which improves the plasticizer detection efficiency in drinking water supervision.
Last Update:
2022-06-17