Trace analysis of anions in organic matrices by ion chromatography coupled with a novel reversed-phase column for on-line sample pretreatment  

作　　者：Ying Ying Zhong Wen Fang Zhou Xue Ling Zeng Ming Li Ye Yan Zhu 

机构地区：[1]Department of Chemistry,Zhejiang University,Hangzhou 310028,China [2]Ningbo Entry-Exit Inspection and Quarantine Bureau,Ningbo 315012,China

出　　处：《Chinese Chemical Letters》2011年第4期461-464,共4页中国化学快报（英文版）

基　　金：supported by National Natural Science Foundation of China(Nos.20775070, J0830413);Zhejiang Provincial Natural Science Foundation of China(Nos.R4080124,Y4090104,Y4090078);Zhejiang Qianjiang Project of Science and Technology for Competent People(No.2008R10028)

摘　　要：An ion chromatography（IC） system coupled with on-line column-switching technique was used to determine anions ofμg/g levels in organic chemicals of analytical reagent grade.A novel polystyrene-divinylbenzene-carbon nanotube（PS-DVB-CNT） stationary phase was utilized for matrix elimination.A calibration study was conducted by preparing and analyzing eight concentrations（between 10 and 5000μg/L） of eight standards in deionized water.The linearity was between 0.9978 and 1.And the detection limits ranged from 1.54μg/L to 10.02μg/L.A spiking study was performed on two representative organic chemicals.The recoveries were between 84.3%and 119.6%.An ion chromatography（IC） system coupled with on-line column-switching technique was used to determine anions ofμg/g levels in organic chemicals of analytical reagent grade.A novel polystyrene-divinylbenzene-carbon nanotube（PS-DVB-CNT） stationary phase was utilized for matrix elimination.A calibration study was conducted by preparing and analyzing eight concentrations（between 10 and 5000μg/L） of eight standards in deionized water.The linearity was between 0.9978 and 1.And the detection limits ranged from 1.54μg/L to 10.02μg/L.A spiking study was performed on two representative organic chemicals.The recoveries were between 84.3%and 119.6%.

关 键 词：Ion chromatography Column switching Trace anions Organic matrix Polymer stationary phase 

分 类 号：O652.4[理学—分析化学] X832.02[理学—化学]