详细信息
TCF类比色探针的合成及其对亚硫酸盐的高灵敏度检测
Synthesis of TCF-based Colorimetric Probes and Their Application in Sulfite Detection
文献类型:期刊文献
中文题名:TCF类比色探针的合成及其对亚硫酸盐的高灵敏度检测
英文题名:Synthesis of TCF-based Colorimetric Probes and Their Application in Sulfite Detection
作者:刘天奇[1];赵宇[1];田海玉[1];汪志强[1];张东生[1];刘姗姗[1];邹冬璇[1];钱俊红[1]
机构:[1]华东理工大学化学与分子工程学院,上海200237
年份:2016
卷号:14
期号:4
起止页码:23
中文期刊名:生命科学仪器
外文期刊名:Life Science Instruments
收录:CSTPCD
基金:国家自然科学基金(21576085);上海市自然科学基金(15ZR1409000)的资助
语种:中文
中文关键词:2-二氰基亚甲基-3-氰基-4,5,5-三甲基-2,5-二氢呋喃;比色探针;小分子含硫化合物
外文关键词:2-dicyanomethylene-3-cyano-4; 5; 5-trimethyl-2; 5-dihydrofuran; colorimetric probe; small weighted;
摘要:本文以2-二氰基亚甲基-3-氰基-4,5,5-三甲基-2,5-二氢呋喃(TCF)为发色团,合成了三个比色探针。研究了探针对几种小分子含硫化合物如硫化氢、亚硫酸盐以及小分子硫醇的光谱响应,结果表明探针TNS-2对亚硫酸盐具有较高的选择性。浓度滴定曲线结果显示在0.2~40μM范围内,A_(334)/A_(447)与亚硫酸盐浓度呈现良好的线性关系,检出限为7.0×10^(-8)mol/L,表明探针TNS-2对亚硫酸盐具有较高的检测灵敏度。
Three colorimetric probes were synthesized with 2-dicyanomethylene-3- cyano-4,5,5-trimethyl-2,5-dihydrofuran(TCF) as the chromophore.The spectral responses of the probes toward several sulfur-containing molecules such as sulfite,sulfide and thiols,were investigated.The results showed that TNS-2 exhibited good selectivity toward sulfite.The absorbance ratio at 334 nm and 447 nm(A334 / A447) was linear with sulfite concentration over the range of 0.2-40 μM.The detection limit for sulfite was calculated to be 7.0 × 10^-8 mol/L,revealing that TNS2 is quite sensitive to sulfite.
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