超声波辅助分散液液微萃取-气相色谱法测定水中的邻苯二甲酸二乙酯和菲.pdf

第28卷第3期
化学研究与应用
Vol28. No. 3
2016年3月
Chemical Research and Application
Mar.,2016
文章编号:1004-1656(2016)03-0420-05
超声波辅助分散液液微萃取-气相色
谱法测定水中的邻苯二甲酸二乙酯和菲
唐婧2,范开敏3,王昱单,黄小梅,杨秀培“
1.四川文理学院化学化工学院,四川达州635000;
2.四川文理学院“特色植物开发研究”四川省高校重点实验室,四川达州635000
3.四川文理学院物理与机电工程学院,四川达州635000
4.西华师范大学化学化工学院,四川南充637002)
摘要:建立了超声波辅助-低密度萃取剂分散液液微萃取(LDS-USA-DLME)气相色谱法测定水中邻苯二甲
酸二乙酯(DFP)和非(Phe)的方法。采用低密度溶剂(甲苯)为萃取剂,超声波为分散剂处理水样,并讨论了
萃取剂种类和体积、超声温度和时间、冰浴时间和盐效应等重要因素对回收率的影响。在最优萃取条件下,
DEP和菲在0.1-100g?L范围内具有良好的线性,相对标准偏差在3.5%-7.8%之间,检出限为0.006和
0.010pg?L。对实际水样进行加标实验,回收率在81.9%~100.6%之间。该方法具有高效、简便、廉价、环
境友好等优点,能够成功分析水中的DEP和菲。
关键词:超声波辅助-低密度萃取剂分散液液微萃取法;气相色谱法;DEP;菲
中图分类号:0657.71文献标志码:A
Determination of diethyl phthalate and phenanthrene by ultrasound-assisted
dispersive liguid-liquid microextraction coupled with gas chromatography
TANG Jing, FAN Kai-min, WANG Yu-dan, Huang Xiao-mei, YANG Xiu-pei
( 1. School of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou 635000, China;
2. Key Laboratory of Exploi ation and Study of Distinctive Plants in education department of Sichuan Province
Sichuan University of Arts and Science, Dazhou 635000, China
School of Physics and Mechanical &Electronic Engineerng, Sichuan University of Arts and Science, Dazhou 635000, China
4. College of Chemistry and chemical Engineering, China West Normal University, Nanchong 637002, CH
Abstract Diethyl phthalate(DEP)and phenanthrene(Phe )were determined by LDS-USA-DLLME extraction coupled with gas chro
ma graph. In this approach, low-density solvent (toluene )as extraction solvent and ultrasound radiation as dispersive solvent were
used to extract DEP and Phe from water sample. Some important factors affecting the extraction recovery, such as extraction solvent
type and volume, ultrasonic temperature and time, ice bath time and salt effect were systematically iscussed. Under the optimized
extraction conditions calibration curves were obtained with a good linearity in the range of.1100 wg L for DEP and Phe. Th
relative standard deviation(RSD n =5)were varied ewen 7.8%and the limits of detection(Ds)were 0.006 and
0.010wgl", respectively. The recoveries of DEP and Pe spiked in real water samples were located in the range of 81.9%
收稿日期:2015-05-06;修回日期:201507-15
基金项目:四川文理学院项目(20137005Y)资助;四川文理学院化学化工学院大学生应用创新能力训练计划项目(hg2014xyl0)资助
联系人简介:杨秀培(1970-),男,教授,主要从事色谱分析和毛细管电泳技术及其应用研究。E-mlil:xiupeiyang@163.com