【摘要】 以1-乙基碘化-2-甲基苯并噻唑为原料,合成了一种新的噻唑衍生物（化合物1）,并通过¹H NMR和MS谱表征了其结构.以检测水溶液中HSO₃^-为目的,利用紫外-可见光谱研究了Cl^-,Br^-,NO₃^-,H₂PO₄^-,CO₃^2-,HCO₃^-,ClO₄^-,SO₄^2-,Ac^-,HS^-,HSO₃^-等常见阴离子对化合物1光谱的影响.结果表明:化合物1识别HSO₃^-,响应时间快、检测限低(0.21μmol·L^-1);化合物1也能识别HS^-,其检测限为2.5μmol·L^-1,但需较长的反应时间.因此,在短时间、低浓度下,HS^-对HSO₃^-的识别无明显干扰,此新的噻唑衍生物可用于快速选择性检测HSO₃^-.更多还原

【Abstract】 A new thiazole derivative（compound 1） was synthesized from 2-methyl-1-ethyl benzothiazole iodide, and then characterized by ¹ H NMR and MS. For the purpose of detection of HSO₃^-in aqueous solution, the interactions between the compound and some common anions,including Cl^-,Br^-,I^-,NO₃^-,H₂ PO₄^-,CO₃^2-,HCO₃^-,ClO₄^-,SO₄^2-,Ac^-,HS^-and HSO₃^-were studied by UV-Vis spectroscopy. The results showed that HSO₃^-could be recognized by compound 1 with fast response time and low detection limit(0. 21μmol·L^-1). Compound 1 also displayed recognition of HS^-with a detection limit of 2.5 μmol · L^-1, but the process took much longer time. Thus the presence of HS-presented no obvious interference for detecting HSO₃^-in a short time and low concentration. The new thiazole derivative can therefore be used for the rapid and selective detection of HSO₃^-.更多还原