Determination of Triazine Herbicides in Drinking Water by Dispersive Micro Solid Phase Extraction with Ultrahigh-Performance Liquid Chromatography-High-Resolution Mass Spectrometric Detection.
A novel dispersive micro solid phase extraction (DMSPE) method based on a polymer cation exchange material (PCX) was applied to the simultaneous determination of the 30 triazine herbicides in drinking water with ultrahigh-performance liquid chromatography-high-resolution mass spectrometric detection. Drinking water samples were acidified with formic acid, and then triazines were adsorbed by the PCX sorbent. Subsequently, the analytes were eluted with ammonium hydroxide/acetonitrile. The chromatographic separation was performed on an HSS T3 column using water (4 mM ammonium formate and 0.1% formic acid) and acetonitrile (0.1% formic acid) as the mobile phase. The method achieved LODs of 0.2-30.0 ng/L for the 30 triazines, with recoveries in the range of 70.5-112.1%, and the precision of the method was better than 12.7%. These results indicated that the proposed method had the advantages of convenience and high efficiency when applied to the analysis of the 30 triazines in drinking water.
Key Laboratory of Food Safety Risk Assessment, Ministry of Health, China National Center for Food Safety Risk Assessment , Beijing 100021, China.
Dawei
D
Chen
Third Institute of Oceanography State Oceanic Administration , Xiamen 361005, Fujian, China.
Yiping
Y
Zhang
Key Laboratory of Food Safety Risk Assessment, Ministry of Health, China National Center for Food Safety Risk Assessment , Beijing 100021, China.
Hong
H
Miao
Key Laboratory of Food Safety Risk Assessment, Ministry of Health, China National Center for Food Safety Risk Assessment , Beijing 100021, China.
Yunfeng
Y
Zhao
Key Laboratory of Food Safety Risk Assessment, Ministry of Health, China National Center for Food Safety Risk Assessment , Beijing 100021, China.
Yongning
Y
Wu
D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D060766:Drinking Water / Q000032:analysis*; D006540:Herbicides / Q000032:analysis* / Q000302:isolation & purification*; D013058:Mass Spectrometry / Q000379:methods*; D052616:Solid Phase Extraction / Q000379:methods*; D014227:Triazines / Q000032:analysis* / Q000302:isolation & purification*; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000302:isolation & purification
D060766:Drinking Water; D006540:Herbicides; D014227:Triazines; D014874:Water Pollutants, Chemical
dispersive micro solid phase extraction; high-resolution mass spectrometry; triazine; water