当前位置: X-MOL 学术J. Agric. Food Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Robust Matrix Effect-Free Method for Simultaneous Determination of Legacy and Emerging Per- and Polyfluoroalkyl Substances in Crop and Soil Matrices.
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2020-07-02 , DOI: 10.1021/acs.jafc.0c02630
Lei Chen 1 , Yuya Dai 1 , Can Zhou 1 , Xiongfei Huang 1, 2, 3 , Shizhong Wang 1, 2, 3 , Hang Yu 1 , Yun Liu 1 , Jean Louis Morel 4 , Qingqi Lin 1, 2, 5 , Rongliang Qiu 1, 2, 5
Affiliation  

Increasing use of emerging per- and polyfluoroalkyl substances (PFASs) has caused extensive concerns around the world. Effective detection methods to trace their pollution characteristics and environmental behaviors in complex soil–crop systems are urgently needed. In this study, a reliable and matrix effect (ME)-free method was developed for simultaneous determination of 14 legacy and emerging PFASs, including perfluorooctanoic acid, perfluorooctane sulfonate, 6 hydrogenous PFASs, 3 chlorinated PFASs, and 3 hexafluoropropylene oxide homologues, in 6 crop (the edible parts) and 5 soil matrices using ultrasonic extraction combined with solid-phase extraction and ultraperformance liquid chromatography–mass spectrometry (MS)/MS. The varieties of extractants and cleanup cartridges, the dosage of ammonia hydroxide, and the ME were studied to obtain an optimal pretreatment procedure. The developed method had high sensitivity and accuracy with satisfactory method detection limits (2.40–83.03 pg/g dry weight) and recoveries (72–117%) of all target analytes in matrices at five concentrations, that is, 0.1, 1, 10, 100, and 1000 ng/g. In addition, the ME of this method (0.82–1.15) was negligible for all PFASs, even considering 11 different matrices. The successful application of the ME-free method to simultaneously determine the legacy and emerging PFASs in crop and soil samples has demonstrated its excellent practicability for monitoring emerging PFASs in soil–crop systems.

中文翻译:

健壮的无基质效应方法,可同时测定农作物和土壤基质中的遗留物和新兴的全氟和多氟烷基物质。

越来越多地使用新兴的全氟烷基物质和多氟烷基物质(PFAS)引起了全世界的广泛关注。迫切需要有效的检测方法来追踪其在复杂的土壤-作物系统中的污染特征和环境行为。在这项研究中,开发了一种可靠且无基质效应(ME)的方法,可同时测定14种传统和新兴的PFAS,包括6种全氟辛酸,全氟辛烷磺酸盐,6种含氢PFAS,3种氯化PFAS和3种六氟环氧丙烷同系物。超声萃取结合固相萃取和超高效液相色谱-质谱(MS)/ MS分析农作物(可食部分)和5种土壤基质。各种萃取剂和净化柱,氢氧化氨的用量,研究了ME和ME,以获得最佳的预处理程序。所开发的方法具有很高的灵敏度和准确性,具有令人满意的方法检出限(2.40–83.03 pg / g干重),并且在五个浓度的基质中所有目标分析物的回收率(72–117%)为0.1、1、10, 100和1000 ng / g。此外,即使考虑11种不同的矩阵,该方法的ME(0.82-1.15)对于所有PFAS都是微不足道的。无ME方法的成功应用同时测定了农作物和土壤样品中的遗留和新兴PFAS,证明了其监测土壤-作物系统中新兴PFAS的出色实用性。基质中所有目标分析物在五种浓度下(0.1、1、10、100和1000 ng / g)的回收率(03 pg / g干重)和回收率(72–117%)。此外,即使考虑11种不同的矩阵,该方法的ME(0.82-1.15)对于所有PFAS都是微不足道的。无ME方法的成功应用同时测定了农作物和土壤样品中的遗留和新兴PFAS,证明了其监测土壤-作物系统中新兴PFAS的出色实用性。基质中所有目标分析物在五种浓度下(0.1、1、10、100和1000 ng / g)的回收率(03 pg / g干重)和回收率(72–117%)。此外,即使考虑11种不同的矩阵,该方法的ME(0.82-1.15)对于所有PFAS都是微不足道的。无ME方法的成功应用同时测定了农作物和土壤样品中的遗留和新兴PFAS,证明了其监测土壤-作物系统中新兴PFAS的出色实用性。
更新日期:2020-07-29
down
wechat
bug