本文中,我们通过金纳米棒颜色的改变实现了对I-的可视化检测,在HRP酶催化的情况下,H2O2把I-的氧化为I2,之后I2会对金纳米棒进行刻蚀,使其纵向表面等离子体共振吸收峰发生蓝移,同时伴随颜色的改变,检测灵敏度达到了0.01μM.此方法简单便捷,同时实现了对实际样品水样中I-的检测.%In this work,we designed a colorimetric sensor for the detection of I- through the color change of gold nanorods. I- could be oxidized to I2 by H2O2 in the presence of HRP,which could cause the etching of gold nanorods and lead to a blue shift of the lon-gitudinal surface plasma resonance absorption peak accompanied with the color change from blue to red. The detection sensitivity reached to 0. 01 μM. This method is simple and convenient,moreover,it realizes the analysis of I- in water samples.
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