天津工业大学学报2018，Vol.37Issue(2)：37-42,6.DOI:10.3969/j.issn.1671-024x.2018.02.007
硫脲功能化的螯合纤维在测定水溶液中痕量Hg(Ⅱ)的应用
Application of thiourea functioned chelate fiber in determination of trace amount of Hg(Ⅱ)in aqueous solution
摘要
Abstract
In order to improve the accuracy and stability in the determination of Hg(Ⅱ)in complex sample,a sensitive method was developed for the determination of Hg(Ⅱ)using fiber-in-tube solid-phase microextraction with thiourea functioned chelate fiber for the preconcentration of trace amount of Hg(Ⅱ)prior to determination by atomic fluorescence spectrophotometer. The main factors influencing the preconcentration and extraction of Hg(Ⅱ),pH of the aqueous solution,sample flow rate,eluent concentration,eluent volume,and eluent flow rate were investigated.The results indicated that under the optimized conditions, the process including preliminary enrichment by 50 times.The relative standard deviations at the limit of quantification(0.001 μg/L)were 7.24% (n = 6). The proposed method has the advantages of convenience, high sensitivity and accuracy for use in detection of Hg(Ⅱ)in complex matrices.关键词
硫脲功能化/螯合纤维/Hg(Ⅱ)/固相微萃取/原子荧光光度法Key words
thiourea functioned/chelate fiber/Hg(Ⅱ)/solid-phase microextraction/atomic fluorescence spectrometry分类
化学化工引用本文复制引用
孙玉利,孔志云,康恺,陈远,吴晓青,魏俊富..硫脲功能化的螯合纤维在测定水溶液中痕量Hg(Ⅱ)的应用[J].天津工业大学学报,2018,37(2):37-42,6.基金项目
国家自然科学基金资助项目(51678409,21504063) （51678409,21504063）
天津市科技支撑计划项目(15ZCZDSF00880) （15ZCZDSF00880）
天津市科技计划项目(15PT-SYJC00240) （15PT-SYJC00240）
天津市自然科学基金项目(17JCQNJC08700) （17JCQNJC08700）
