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引用本文:   路丽霞, 王洋, 蔺晓晓, 李欣瑶, 辛梦娜. 基于对铂纳米粒子过氧化物模拟酶活性的抑制检测碘离子. 分析化学, 2018, 46(1): 94-99. doi:  10.11895/j.issn.0253-3820.171220 [复制]

Citation:   LU Li-Xia, WANG Yang, LIN Xiao-Xiao, LI Xin-Yao, XIN Meng-Na. Colorimetric Detection of Iodine Ion Based on Its Inhibition Effect on Peroxidase-Like Activity of Platinum Nanoparticles. Chinese Journal of Analytical Chemistry, 2018, 46(1): 94-99. doi: 10.11895/j.issn.0253-3820.171220 [复制]

基于对铂纳米粒子过氧化物模拟酶活性的抑制检测碘离子

通讯作者:  路丽霞, 616063@sdnu.edu.cn

收稿日期: 2017-09-02

接受日期: 2017-09-29

出版日期: 2018-01-20

基金项目: 本文系山东省自然科学基金项目(No.ZR2016CM47)资助

Colorimetric Detection of Iodine Ion Based on Its Inhibition Effect on Peroxidase-Like Activity of Platinum Nanoparticles

Corresponding author:  LU Li-Xia, 616063@sdnu.edu.cn

Received Date:  2017-09-02

Accepted Date:  2017-09-29

Published Date:  2018-01-20

Fund Project:  This work was supported by the Natural Science Foundation of Shandong Province, China (No.ZR2016CM47)

合成了柠檬酸钠保护的铂纳米粒子(PtNPs),其具有类过氧化物酶活性,可催化四甲基联苯胺(TMB)和过氧化氢的反应,产生有色产物;而碘离子(I-)对铂纳米粒子的催化活性具有明显的抑制作用,一定范围内随着I-浓度的增加,抑制作用逐渐增强,基于此构建了一种简单、快速测定I-的比色传感方法。I-的肉眼识别可在几秒内完成,定量检测可在10 min之内完成。此方法灵敏度高,检出限为8 nmol/L,检测范围较宽,为20~5000 nmol/L。相对于以纳米粒子的聚沉-分散为基础的比色法,此方法不需要纳米粒子的表面修饰,没有复杂的有机合成过程,操作简便、成本低。将此方法成功用于实际食盐样品和水样中I-的检测,效果良好。

关键词:   铂纳米粒子, 过氧化物模拟酶活性, 碘离子, 催化活性
Key words:   Platinum nanoparticles, Peroxidase mimics, Iodine ion, Catalytic activity
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基于对铂纳米粒子过氧化物模拟酶活性的抑制检测碘离子

路丽霞, 王洋, 蔺晓晓, 李欣瑶, 辛梦娜

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