分析测试学报2016，Vol.35Issue(11)：1496-1499,1504,5.DOI:10.3969/j.issn.1004-4957.2016.11.023
基于核壳金@铂纳米粒子的Ag+比色检测方法
Colorimetric Detection of Silver Ions Based on Au@Pt Nanoparticles
摘要
Abstract
Au@Pt NPs have an excellent peroxidase-like activity,and silver ions(Ag+) could intensively inhibit the catalytic ability of Au@Pt NPs.Based on this,a colorimetric detection of Ag+ was performed in a linear range of 0.1- 10 nmol/L with a detection limit of 0.05 nmol/L.The sensing system also showed a sensitive response to Hg2+.A linear range of 10-200 nmol/L and a detection limit of 5.0 nmol/L were achieved in the colorimetric detection for Hg2+.The method was applied in detection of tap water spiked with Ag+(10,50,100 nmol/L),and the recoveries ranged from 83.8% to 97.7% with relative standard deviations(RSD) of 3.0%-9.6%.This method has the advantages of simplicity,sensitivity and low cost.关键词
Au@Pt纳米粒子/模拟酶/比色检测/银离子/汞离子Key words
Au@Pt nanoparticles/enzyme mimics/colorimetric detection/Ag+/Hg2+分类
化学化工引用本文复制引用
陈铭铭,吴亮亮,谢正军,彭池方..基于核壳金@铂纳米粒子的Ag+比色检测方法[J].分析测试学报,2016,35(11):1496-1499,1504,5.基金项目
十二五国家科技支撑计划项目(2015BAD17B02) （2015BAD17B02）
国家自然科学基金资助项目(31371767) （31371767）
