以4-甲酰基三苯胺、2-肼基苯并噻唑和硝酸铜为原料,通过醛胺缩合及金属螯合反应合成了一种铜络合物探针T-Cu,并将其用于苯胺检测。结果表明,苯胺加入后探针溶液颜色由红色转变为黄色,可实现对苯胺的"裸眼"比色型识别。该方法具有较高的灵敏度,检测限低至0.368 μmol/L;同时,检测过程不易受常见苯系物、金属阳离子、阴离子及其他小分子的干扰,表现出优异的特异性。该探针在实际水样中具有优异的苯胺识别效果,在环境检测领域具有广阔的应用前景。

T-Cu,a novel aniline probe based on Cu-Schiff base complex,is designed and synthesized through the condensation and chelation reactions,with 4-formyl triphenylamine,2-hydrazino benzothiazole and copper nitrate as raw materials.It is shown that the color of the probe solution changes from red to yellow after the addition of aniline,making the "naked eye" colorimetric detection of aniline possible with high sensitivity.This method has a detection limit as low as 0.368 μM.T-Cu probe has more excellent specificity,which is not easily affected by common benzene analogs,metal ions,anions,and small molecules.Besides,T-Cu probe has excellent aniline recognition performance in actual water samples and shows a potential in environmental detection field.

耿向东(1983-),男,硕士,高级工程师,研究方向为荧光传感器和高分子材料功能化。