埃洛石纳米管涂层对多氯联苯的吸附效果研究  

Determination of polychlorinated biphenyl in loquat tea by GC/MS coupled with SPME

作　　者：林旺[1,2,3] 刘薇[1] 童萍[1] 陈彰旭[2] 张兰[1] 

机构地区：[1]福州大学石油化工学院,福州350116 [2]莆田学院环境与生物工程学院,莆田351100 [3]福建省新型污染物生态毒理效应与控制重点实验室,莆田351100

出　　处：《化工新型材料》2017年第5期206-208,共3页New Chemical Materials

基　　金：国家级大学生创新创业训练计划项目(201411498002);莆田市科技项目(2014N13)

摘　　要：采用埃洛石纳米管(HNTs)做为微萃取涂层对水样中的7种多氯联苯进行吸附,建立了固相微萃取-气相色谱-质谱联用(SPME-GC-MS)同时测定水样中7种多氯联苯的方法,实验表明,在55℃、搅拌速度为600r/min下萃取30min,230℃下解析6min时,萃取效果最佳,7种多氯联苯的峰面积与量浓度有良好的线性关系,方法的相关系数在0.9918~0.9993之间,按照S/N=3得出检测限为0.05~0.32ng/mL;样品的平均加标回收率为91.6%~126.3%,精密度在4.2%~9.1%之间。Halloysite nanotubes （HNTs） were utilized as microextraction coating for the absorption of seven poly chlorinated biphenyls and a method of solid-phase microextraction-gas chromatography-mass spectrometry was developed for the simultaneous determination of seven polychlorinated biphenyls in water sample. Results indicated that the optimal SPME conditions were using halloysite nanotubes （HNTs） as mieroextraction coating at 55℃ and 600 r/min for 30min,desorping under 230℃ for 6min. Based on the experimental results,the peak areas of 7 polychlorinated biphenyls were in good linear relationship with concentration. The correlation coefficient of this method was about 0. 9918-0. 9993 and the detection limits were 0.05-032 ng/mL according to S/N23. The average recoveries were between 91.60/oo and 126.3%. The degree of precision was between 4.20% and 9.1%.

关 键 词：埃洛石纳米管 多氯联苯 固相萃取 气质联用法 

分 类 号：O647.3[理学—物理化学] O657.63[理学—化学] X832[环境科学与工程—环境工程]