Surface-Enhanced Raman Scattering Sensor Based on Self-Assembled Silver Nanoparticles for Detecting Rotten Eggs

被引：2
作者：
Tan, H. [1 ]
Jin, S. [1 ,2 ]
Xu, R. [1 ]
Jiang, L. [1 ,2 ]
Li, Y. [1 ]
Yu, Z. [1 ]
Jiang, C. [1 ]
机构：
[1] China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou, Peoples R China
[2] China Jiliang Univ, Key Lab Zhejiang Prov Modern Measurement Technol, Hangzhou, Peoples R China
来源：
JOURNAL OF APPLIED SPECTROSCOPY | 2022年 / 89卷 / 05期
基金：
中国国家自然科学基金;
关键词：
surface-enhanced Raman scattering; silver nanoparticles; hydrogen sulfide; rotten-egg detection; quantitative detection; QUALITY ASSESSMENT; HYDROGEN-SULFIDE; FRESHNESS; SPECTROSCOPY; SUBSTRATE;
D O I：
10.1007/s10812-022-01454-x
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Eggs are nutritious food that can decompose to emit hydrogen sulfide (H2S) gas when stored for a long time. We designed a surface-enhanced Raman scattering (SERS) sensor based on self-assembled silver nanoparticles (Ag NPs) to detect endogenous H2S generated in rotten eggs. The Ag NPs were prepared using a reduction method to enhance the Raman signal of the probe molecule, 4-mercaptobenzoic acid. The prepared Ag-NP substrate exhibited an excellent Raman strength enhancement effect, good uniformity, and long-term stability. To explore the possibility of using a SERS platform in H2S gas detection, a quantitative analysis with different H2S concentrations was performed. The results showed a good linear relationship between the Raman intensity at 1073 cm(-1) and various H2S concentrations, and the H2S detection limit was as low as 0.03 mu M.
引用
收藏
页码：959 / 966
页数：8
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