持久性有机污染物(POPs)是指能通过环境降解,持久存在于各种大气、残留物、土壤、水及生物体内,通过生物食物链累积、并对人类健康造成有害影响的化学物质。本文建立了固相萃取(SPE)和高效液相色谱-质谱联用分析方法(HPLC-MS),同时定量测定环境水样中全氟辛酸(PFOA)、全氟辛磺酰酸(PFOS)、全氟己酸(PFHA)、双酚A(BPA)、3-羟基-四溴联苯醚(3-OH-BDE-47)5种持久性有机污染物。该方法在1~1 000 ng·m L-1的范围内具有良好的线性关系,检测限在1~8 ng·L-1,水样加标回收率为93.2%~110.1%,相对标准偏差(RSD)为2.7~9.1%,可以满足复杂水样中相关POPs的分析检测。
POPs are organic compounds that are resistant to environmental degradation, having long half-lives in airs, sediments, soils, water or biota, and imposing potential significant impacts on human health through bioaceumulation.An analytical method was developed for the detections of 5persistent organic pollutants (POPs),namely,perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid(PFOS),perfluorohexanoic (PFHA),bisphenol A (BPA),3-hydroxy polybrondnateddiphenyl ether (3-OH-BDE-47) by solid-phase extraction (SPE) and high performance liquid chromatography-mass spectrometry(HPLC-MS).The samples were extracted in PS-DVB SPE columns, usingmethanol and acetonitrile as the eluent, and then concentrated prior to the injection into HPLC-MS.The limits of detection (LODs)forthe five compounds ranged from 1-8 ng·mL-land the results showedgood linear relationships from1-1 000 ng·mL- 1. Recoveries of real water sampleswere obtained from93.2 %-110.1% and the relative standard deviations were in the range of2.7-9.1%. Hence, this developed method can satisfy the detection of these POPs in water samples with complex matrices.