摘要
本研究采用气相色谱-三重四极杆质谱仪(GC-MS/MS)测定海洋沉积物中28种多氯联苯,使用硅胶与中性氧化铝层析柱净化,同位素内标定量.结果表明,对于28种多氯联苯,GC-MS/MS方法在0.1—50 ng·mL-1的浓度范围内具有良好的线性关系,各组分平均相对响应因子(RRF)的相对标准偏差(RSD)均小于20%,证明该方法重现性良好.28种多氯联苯平均回收率在69.03%—135.89%之间,相对标准偏差在7.39%—13.94%之间.该方法灵敏度高,抗干扰能力强,能够用于海洋沉积物中痕量多氯联苯的分析.
A method based on gas chromatography-triple quadrupole mass spectrometer(GC-MS/MS) was developed to determine 28 polychlorinated biphenyls in marine sediments. The results show that for 28 PCBs, GC-MS/MS method has a good linear relationship in the concentration range of 0.1—50 ng·mL-1, and the relative standard deviation(RSD) of the average relative response factor(RRF) of each component is less than 20%, which proved that the method had good reproducibility. The average recovery of 28 PCBs was between 69.03% and 135.89%, the relative standard deviation was between 7.39% and 13.94%. The method shows high sensitivity and anti-interference, which can be used for the analysis of trace PCBs in marine sediment.
作者
刘星
孙禾琳
蒋培宇
王卫平
姚子伟
LIU Xing;SUN Helin;JIANG Peiyu;WANG Weiping;YAO Ziwei(National Marine Environmental Monitoring Center,Dalian,116023,China;State Environmental Protection Key Laboratory of Coastal Ecosystem,Dalian,116023,China;Shimadzu(China)Co.,Ltd.,Shenyang,110000,China)
出处
《环境化学》
CAS
CSCD
北大核心
2020年第7期2029-2033,共5页
Environmental Chemistry
基金
国家自然科学基金(21777035,41676097)资助
