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基于银纳米粒子最大吸收波长线性蓝移的高选择性汞（II）离子检测。

Highly Selective Hg (II) Ion Detection Based on Linear Blue-Shift of the Maximum Absorption Wavelength of Silver Nanoparticles.

机构信息

Department of Chemistry, Third Military Medical University, Chongqing 400038, China.

出版信息

J Anal Methods Chem. 2012;2012:856947. doi: 10.1155/2012/856947. Epub 2012 Apr 3.

DOI:10.1155/2012/856947
PMID:22567571
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3335303/
Abstract

A new method of detecting Hg (II) ion with silver nanoparticles (AgNPs) is developed in this contribution. When Hg (II) ions were added into AgNPs solution, the solution displayed rapid color change and blue shift of the maximum absorption wavelength (Δλ), which was in proportion to the Hg (II) ion concentration over the range of 2.0 × 10(-7)-6.0 × 10(-6) mol/L, with detection limit (3σ) of 6.6 × 10(-9 )mol/L. Under the same experimental conditions, other metal ions did not interfere. Thus, we propose a rapid, simple and highly selective method for detecting Hg (II) ion.

摘要

本研究提出了一种利用银纳米粒子（AgNPs）检测 Hg(II)离子的新方法。当 Hg(II)离子加入到 AgNPs 溶液中时，溶液会发生快速的颜色变化和最大吸收波长（Δλ）的蓝移，这与 Hg(II)离子浓度在 2.0×10(-7)-6.0×10(-6) mol/L 范围内呈正比，检测限（3σ）为 6.6×10(-9) mol/L。在相同的实验条件下，其他金属离子没有干扰。因此，我们提出了一种快速、简单、高选择性的检测 Hg(II)离子的方法。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7566/3335303/7258b0300791/JAMC2012-856947.007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7566/3335303/16b53ffd748e/JAMC2012-856947.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7566/3335303/d1f34a4bb0e3/JAMC2012-856947.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7566/3335303/98250296311a/JAMC2012-856947.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7566/3335303/d0fcc2433949/JAMC2012-856947.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7566/3335303/9b9d4c62837f/JAMC2012-856947.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7566/3335303/3a9c6305c25b/JAMC2012-856947.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7566/3335303/7258b0300791/JAMC2012-856947.007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7566/3335303/16b53ffd748e/JAMC2012-856947.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7566/3335303/d1f34a4bb0e3/JAMC2012-856947.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7566/3335303/98250296311a/JAMC2012-856947.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7566/3335303/d0fcc2433949/JAMC2012-856947.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7566/3335303/9b9d4c62837f/JAMC2012-856947.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7566/3335303/3a9c6305c25b/JAMC2012-856947.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7566/3335303/7258b0300791/JAMC2012-856947.007.jpg

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