罗丹明6G与罗丹明6G酰肼测汞的对比研究  

COMPARATIVE STUDY OF MERCURY MEASUREMENT OF RHODAMINE 6G AND RHODAMINE 6G HYDRAZIDE

作　　者：盛新凤 董彦杰 SHENG Xin-feng;DONG Yan-jie(College of Chemistry and Chemical Engineering,Anqing Normal University,Anqing,Anhui 246001;Anhui Key Laboratory of Functional,Complexes,Anqing,Anhui 246001,China)

机构地区：[1]安庆师范大学化学化工学院,安徽安庆246001 [2]安徽省功能配合物重点实验室,安徽安庆246001

出　　处：《井冈山大学学报（自然科学版）》2020年第3期19-23,共5页Journal of Jinggangshan University (Natural Science)

基　　金：省部共建煤炭高效利用与绿色化工国家重点实验室开放课题项目(2018-K34,2019-KF-31)。

摘　　要：以罗丹明6G(R6G)为原料合成了罗丹明6G酰肼(R6GH),并通过荧光法考察了R6G和R6GH酰肼选择性识别金属离子、适合的缓冲溶液体系、最佳缓冲溶液pH及浓度、R6G和R6GH的浓度、Hg2+的浓度以及阳离子的干扰等七个因素的影响。实验确定了R6G测定Hg2+的最佳条件为:0.01mol/L醋酸缓冲体系(pH=4.60),R6GH测定Hg2+的最佳条件为:0.005 mol/L醋酸缓冲体系(pH=4.60)。通过14种阳离子的干扰实验发现,阳离子对R6G测定Hg2+的影响大于对R6GH测定Hg2+的影响。实验结果表明:R6GH比R6G能更好的识别Hg2+,最低检出限为5.0×10-12 mol/L。Rhodamine 6G hydrazine(R6GH)was synthesized from rhodamine 6G(R6G),and the effects of seven factors including selective of metal ions,buffer solution constitute,buffer solution pH and its concentration,R6G and R6GH concentration,Hg^2+concentration and cation interference were investigated by fluorescence method.The optimum condition of the R6G/R6GH determination Hg^2+were determined respectively as 0.01 mol/L acetic acid buffer system(pH=4.60),and 0.005 mol/L acetic acid buffer system(pH=4.60).The interference experiment of 14 kinds of cations,it is found that the influence of cations on the R6G determination Hg^2+is greater than the R6GH determination Hg^2+.The experiment results showed that R6GH could better identify Hg2+than R6G,and the detection limit was 5.0×10^-12 mol/L.

关 键 词：R6G R6GH 对比研究 

分 类 号：O661[理学—分析化学]