A sensitive and selective Victoria blue 4R SERS molecular probe for sodium lauryl sulfate in AuNP/AgCl sol substrate
A sensitive and selective Victoria blue 4R SERS molecular probe for sodium lauryl sulfate in AuNP/AgCl sol substrate
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一种灵敏、选择性维多利亚蓝 4R SERS 分子探针，用于检测 AuNP/AgCl 溶胶基质中的十二烷基硫酸钠
DOI：
10.1016/j.snb.2016.12.151
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发表时间：
2017-06-01
影响因子：
8.4
通讯作者：
Jiang, Zhiliang
中科院分区：
文献类型：
--
作者：
Liang, Aihui;Wang, Xiaoliang;Jiang, Zhiliang
十二烷基硫酸钠（SLS）是一种重要的环境污染物，迫切需要建立简便、灵敏的SLS测定方法。本文以纳米金（AuNP）酶催化L-半胱氨酸还原HAuCl 4为基础，制备了一种具有高活性和稳定性的表面增强拉曼散射（Sers）纳米金溶胶。在含有AgNO 3敏化剂的AuNP溶胶基底中，自由标记的维多利亚蓝4 R（VB 4 r）Sers分子探针与十二烷基硫酸钠（SLS）反应，在1617 cm（-1）处形成了很弱的Sers效应的缔合物，导致Sers强度线性下降。建立了一种测定0.01 ~ 15 μ moL/L SLS的Sers定量分析新方法，检测限为0.005 μ moL/L。测定水样中的SLS，相对标准偏差为1.36-8.55%，变异系数为97.4- 104.1%。(C)2017爱思唯尔B. V.保留所有权利。
Sodium lauryl sulfate (SLS) is an important pollutant, it is urgent to develop simple and sensitive method for determination of SLS in environment. In this article, a gold nanoparticle (AuNP) sol with highly active surface enhanced Raman scattering (SERS) and good stability was prepared, based on the nanoenzyme AuNP catalysis of L-cysteine reduced HAuCl4. In the AuNP sol substrate containing the sensitized reagent of AgNO3 that formed strongly SERS active substrate of AuNP/AgCI, free-label Victoria blue 4R (VB4r) SERS molecular probes reacted with sodium lauryl sulfate (SLS) to form associated complexes with very weak SERS effect at 1617 cm(-1) that caused the SERS intensity decreased linearly. A new SERS quantitative analysis method was established for the determination of 0.01-15 mu moL/L SLS, with a detection limit of 0.005 mu moL/L. SLS in water smples was determined, with a relative standard deviation of 1.36-8.55% and a coery of 97.4-104.1%. (C) 2017 Elsevier B.V. All rights reserved.