Determination of Benzene Series and Chlorobenzenes Pollutants in Environmental Water by Headspace Solid Phase Microextraction Coupled with Gas Chromatography-Tandem Mass Spectrometry
Scientific Papers|更新时间:2025-02-12
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Determination of Benzene Series and Chlorobenzenes Pollutants in Environmental Water by Headspace Solid Phase Microextraction Coupled with Gas Chromatography-Tandem Mass Spectrometry
Journal of Instrumental AnalysisVol. 44, Issue 2, Pages: 275-284(2025)
HOU Xin-ru,TONG Kai-xuan,CHANG Qiao-ying,ZHANG Hong-yan,CHEN Hui,LI Xiang-yang,ZHANG Jia-lin,LI Ling.Determination of Benzene Series and Chlorobenzenes Pollutants in Environmental Water by Headspace Solid Phase Microextraction Coupled with Gas Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2025,44(02):275-284.
HOU Xin-ru,TONG Kai-xuan,CHANG Qiao-ying,ZHANG Hong-yan,CHEN Hui,LI Xiang-yang,ZHANG Jia-lin,LI Ling.Determination of Benzene Series and Chlorobenzenes Pollutants in Environmental Water by Headspace Solid Phase Microextraction Coupled with Gas Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2025,44(02):275-284. DOI: 10.12452/j.fxcsxb.240607113.
Determination of Benzene Series and Chlorobenzenes Pollutants in Environmental Water by Headspace Solid Phase Microextraction Coupled with Gas Chromatography-Tandem Mass Spectrometry
In this study,the method for the simultaneous determination of eight benzene series(including benzene,toluene,ethylbenzene,
o
-xylene,
p
-xylene,
m
-xylene,cumene and styrene) and 12 chlorobenzenes(CBs)(including chlorobenzene,1,3-dichlorobenzene,1,4-dichlorobenzene,1,2-dichlorobenzene,1,3,5-trichlorobenzene,1,2,4-trichlorobenzene,1,2,3-trichlorobenzene,1,2,3,5-tetrachlorobenzene,1,2,4,5-tetrachlorobenzene,1,2,3,4-tetrachlorobenzene,pentachlorobenzene and hexachlorobenzene) in water samples was established by headspace solid phase microextraction coupled with gas chromatography-tandem mass spectrometry(HS-SPME/GC-MS/MS). The DB-Heavy-Wax(2.1 mm×50 mm,1.7 μm) chromatographic column was utilized for the separation of complex mixture in water samples. The chromatographic separation and feature recognition of the analytes were conducted by fine-tuning t
he temperature gradient and mass spectrometry parameters to achieve optimal resolution and sensitivity. The optimum pretreatment conditions were set as follows:10 mL water sample and 2 g NaCl were added to a 20 mL headspace bottle,shake for 1 min at 500 r/min at 55 ℃,the extraction time was 10 min,and the desorption time was 1 min. Under the optimal experimental conditions,the results showed that the linear ranges of 20 analytes was situated between
0.000 2 μg/L to 50 μg/L. The calibration curves exhibited high linearity with the correlation coefficient(
r
2
) ranging from 0.996 0 to 0.999 7. The limits of detection(LODs) for the analytes was located from 0.000 1 μg/L to 0.2 μg/L,and the limits of quantitation(LOQs) was between 0.000 2 μg/L to 0.5 μg/L. Recoveries of the 20 target compounds in water sample were between 75.4% to 119% with the concentration of LOQ,between 72.7% to 109% with the concentration of twice of LOQ,and between 97.8% to 118% with the concentration of 10 times of LOQ. Both the intra-day and the inter-day relative standard deviations(RSDs) were not more than 19%. Consequently,this method was employed to detect 20 batches of environmental water samples to determine benzene series and chlorobenzene pollutants. As a result,the toluene was successfully detected in one batch of samples,which indicated that this method could effectively meet the analysis requirements of benzene series and chlorobenzene pollutants in environmental water samples. It was considered that this method had several distinct advantages,including high efficiency,high sensitivity,high degree of automation and environmental friendliness(without the use of extractant). The analytical methods developed in this study could not only provide strong technical support for environmental protection but also play a critical role for pollutant monitoring.
关键词
环境水顶空固相微萃取气相色谱-串联质谱苯系物氯苯类污染物
Keywords
environmental waterheadspace solid phase microextractiongas chromatography-tandem mass spectrometrybenzene serieschlorobenzenes
references
Yu B,Yuan Z,Yu Z,Feng X S. J. Chem. Eng.,2022,(435):134825.