1.福建师范大学 环境与资源学院,碳中和现代产业学院,福建 福州 350117
2.福建省污染控制与资源循环 利用重点实验室,福建 福州 350117
3.福州大学 福建省高校测试中心,福建 福州 350116
4.南方科技大学 环境科学与工程学院,广东 深圳 518055
张虹,博士,副教授,研究方向:环境中污染物的分析监测、毒性效应及健康风险评价,E-mail:zhanghong@fjnu.edu.cn
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王涛,张虹,周寒琳等.固相萃取/高效液相色谱-串联质谱法同时测定土壤中12种有机磷酸酯[J].分析测试学报,2023,42(07):825-832.
WANG Tao,ZHANG Hong,ZHOU Han-lin,et al.Simultaneous Determination of 12 Organophosphate Esters in Soil by Solid Phase Extraction/High Performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2023,42(07):825-832.
王涛,张虹,周寒琳等.固相萃取/高效液相色谱-串联质谱法同时测定土壤中12种有机磷酸酯[J].分析测试学报,2023,42(07):825-832. DOI: 10.19969/j.fxcsxb.23032803.
WANG Tao,ZHANG Hong,ZHOU Han-lin,et al.Simultaneous Determination of 12 Organophosphate Esters in Soil by Solid Phase Extraction/High Performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2023,42(07):825-832. DOI: 10.19969/j.fxcsxb.23032803.
采用固相萃取结合高效液相色谱-串联质谱(HPLC-MS/MS)技术,建立了同时测定土壤中12种有机磷酸酯(OPEs)的方法。土壤样品经冷冻干燥、过筛后,加入丙酮-正己烷(1∶1,体积比)超声提取,经CNWBOND Florisil SPE小柱净化后,进行HPLC-MS/MS分析,采用内标法定量。12种OPEs在0.1 ~ 100 μg/L质量浓度范围内线性良好,相关系数(,r,2,)均大于0.999,检出限为0.004 ~ 0.162 ng/g。在低、中、高3种加标水平下,平均加标回收率为67.0% ~ 128%,相对标准偏差为1.5% ~ 9.9%。利用该方法对20份土壤样本进行检测,12种目标化合物均有检出,OPEs总含量为5.36 ~ 55.2 ng/g(干重),平均值为23.7 ng/g(干重),中位数为25.0 ng/g(干重)。该方法灵敏度高,准确度和精密度良好,适用于土壤样品中OPEs的测定。
An effective analytical method was established for the determination of 12 organophosphate esters(OPEs) in soil by solid phase extraction coupled with high performance liquid chromatography-tandem mass spectrometry(HPLC-MS/MS) in this paper.After freeze-drying and sieving,the soil samples were ultrasonically extracted with acetone-hexane(1∶1,by volume),then purified with a CNWBOND Florisil SPE cartridge,and finally analyzed by HPLC-MS/MS.The internal standard method was used for quantification.There were good linear relationships for 12 OPEs in the concentration range of 0.1-100 μg/L,with correlation coefficients(,r,2,) greater than 0.999 and detection limits of 0.004-0.162 ng/g.The average recoveries at low,medium and high three spiked levels ranged from 67.0% to 128%,with relative standard deviations of 1.5%-9.9%.12 OPEs were detected simultaneously in 20 soil samples by the method established.All target compounds were detected with a total content of OPEs ranging from 5.36 to 55.2 ng/g(dry weight),the mean value of 23.7 ng/g(dry weight) and the median value of 25.0 ng/g(dry weight).This method is suitable for the determination of OPEs in soil samples with sensitive and reliable results.
有机磷酸酯土壤固相萃取高效液相色谱-串联质谱法
organophosphate esterssoilsolid phase extractionhigh performance liquid chromatography-tandem mass spectrometry
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