Determination of Melamine in Milk by Surface Enhanced Raman Scattering Technique Based on Self-Assembly Ordered Silver Nanowires

文献类型： 外文期刊

第一作者： Zhao Rui-Chi

作者： Zhao Rui-Chi;Shi Lei;Wang Pei-Long;Su Xiao-Ou

作者机构：

关键词： Ordered silver nanowires;Melamine;Surface enhanced Raman scattering

期刊名称：CHINESE JOURNAL OF ANALYTICAL CHEMISTRY （ 影响因子：1.134； 五年影响因子：0.909 ）

ISSN： 0253-3820

年卷期： 2017 年 45 卷 1 期

页码：

收录情况： SCI

摘要： The fundamental technique of surface enhanced Raman scattering (SERS) is to fabricate a sensitive SERS substrate. A rapid and sensitive detection of trace amounts of melamine in sample was developed, in which a SERS substrate based on ordered silver nanowires (AgNWs) was synthesized and assembled via polyol. fluid flow method. The characteristic Raman peak of melamine was obtained through the theoretical calculation and experimental investigation. And the detection conditions of melamine SERS on the ordered silver nanowire substrate were optimized. Under the optimum conditions including pH = 8, water as solvent and 14 min of solvent evaporation time, a good linearity (R = 0. 997) between characteristic peak intensity and melamine concentration was obtained in the range of 0. 05-1. 00 mg/L with the detection limit of 0. 05 mg/L. The recovery of melamine spiked in milk sample was from 89. 7% to 109. 2% and the relative standard deviation was below 6. 8%. The method exhibited good sensitivity and stability for the detection of melamine, and could provide the technical support for the SERS detection of other small molecule compounds.

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