基于苯并噻唑类螺吡喃检测三价金属离子铁、铬、铝的比色和荧光化学传感器

Benzothiazole spiropyran as colorimetric and fluorescent chemical sensors for the detection of trivalent metal ions Fe^(3+),Cr^(3+) and Al^(3+)

合成了新型苯并噻唑类的螺吡喃化合物3-苄基-8′-甲氧基-6′-硝基-3H-螺[苯并[d]噻唑-2,2′-苯并吡喃]即SP,其可以作为比色和荧光化学传感器,用来检测溶液中的三价金属离子铁、铬和铝。由于苯并噻唑类螺吡喃化合物特殊的结构与性能,在不同的光照条件下此化合物SP可以作为重要的光响应分子。采用紫外-可见分光光度计、荧光-分光光度计、傅里叶红外光谱仪和核磁共振仪分析了化合物的性能。结果表明:此化合物具有良好的裸眼识别效果、紫外和荧光识别效果,良好的抗干扰性,较快的响应时间和较低的检测限等优点。

Novel benzothiazole spiropyran compound,3-benzyl-8′-methoxy-6′-nitro-3 H-spiro[benzo[d]thiazole-2,2′-benzopyran],was synthesized as colorimetric and fluorescent chemical sensors for the detection of Fe^(3+),Cr^(3+)and Al^(3+).Due to the special structure and properties of the benzothiazole spiropyran compound,they can be used as important photo-responsive molecules under different light conditions.The properties of the compound was analyzed using UV-Vis spectrophotometer,Fluorescence spectrophotometer,fourier infrared spectroscopy,and nuclear magnetic resonance instrument.It had the advantages of good naked-eye recognition,UV and fluorescence recognition,good antiinterference,faster response time,and lower detection limit.