中空纤维支载离子液体液液微萃取测定环境水样中的4-n-壬基酚  

Hollow fiber supported ionic liquid-liquid micro-extraction for determination of 4- n- Nonylphenol in environmental water samples

作　　者：邹艳敏[1] 张祯[2] 吴向阳[2] 仰榴青[3] 张冬梅[2] 朱晶晶[2] 

机构地区：[1]江苏大学药学院,江苏镇江212013 [2]江苏大学环境与安全工程学院,江苏镇江212013 [3]江苏大学化学化工学院,江苏镇江212013

出　　处：《江苏大学学报（自然科学版）》2014年第2期233-237,共5页Journal of Jiangsu University：Natural Science Edition

基　　金：教育部高等学校博士学科点专项科研基金资助项目(20113227110020);江苏省普通高校研究生科研创新计划项目(CX09B_209Z)

摘　　要：建立了中空纤维支载离子液体液液微萃取方法,结合HPLC/UV用于测定环境水体中痕量4-n-壬基酚.以l-辛基-3-甲基咪唑六氟磷酸离子液体（[C8MIM][PF6]）为萃取剂,优化影响萃取效率的萃取剂体积、供体相pH值、离子强度和萃取时间.最佳条件下,即[C8MIM][PF6]为5.0μL,pH=5,盐质量分数5%,萃取时间8 h时,对水体中4-n-壬基酚的富集倍数可达1 129倍,检出限质量浓度为0.05μg·L-1（S/N=3）,质量浓度线性范围0.15~100.00μg·L-1（R=0.999 7）,地表水加标回收率为80.1%~105.6%.A method for the determination of 4 -n -Nonylphenol in water samples was proposed by a hol- low fiber supported ionic liquid micro-extraction （HF- LPME ） combined with high performance liquid chromatography with ultraviolet detection. Polypropylene hollow fiber supported 1-Octyl-3-methylimidazo- lium hexafluorophosphate （[ C8MIM] [PF6]） was used for determination of 4 -n -Nonylphenol in water samples. To achieve the optimum extraction performance, the main extraction parameters of extraction sol- vent volume, sample pH, salinity and extraction time were investigated. Under the optimized conditions with [CsMIM] [PF61 volume of 5.0 o,L, pH value of 5, salinity of 5% and extraction time of 8 h, the enrichment factor reaches 1 129 with mass concentration detection limit of 0.05 μg·L-1 （S/N =3）, and the mass con- centration linear range is 0.15 - 100.00 μg·L-1 （R =0.999 7）with recoveries from 80. l% to 105.6%.

关 键 词：离子液体 4-n-壬基酚 中空纤维支载液膜微萃取 高效液相色谱 环境水体 

分 类 号：X132[环境科学与工程—环境科学] X131