Study of Surface Enhanced Raman Scattering of Trace Trinitrotoluene Based on Silver Colloid Nanoparticles

被引：6
|
作者：
Zhang Chun-ling [1 ]
Li Zhe [1 ]
Wu Zheng-long [2 ]
Han De-jun [1 ]
机构：
[1] Beijing Normal Univ, Minist Educ, Key Lab Beam Technol & Mat Modificat, Beijing 100875, Peoples R China
[2] Beijing Normal Univ, Analyt & Testing Ctr, Beijing 100875, Peoples R China
来源：
SPECTROSCOPY AND SPECTRAL ANALYSIS | 2012年 / 32卷 / 03期
关键词：
Surface enhanced Raman scattering (SERS); Silver colloid; Trinitrotoluene(TNT); SPECTROSCOPIC PROPERTIES; GOLD NANOPARTICLES; TNT SENSOR; MOLECULES; ARRAYS; SIZE; SERS;
D O I：
10.3964/j.issn.1000-0593(2012)03-0686-05
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Trinitrotoluene (TNT), a representative nitroexplosive, attracts more and more attentions because of the urgent demand for trace analysis of explosives in recent years. The present study investigated the experiment condition of the surface enhanced Raman scattering (SERS) of 10(-6) mol . L-1 TNT solution, especially the influence of NaCl and basic hydrolysis. The results indicate that SERS spectra of TNT can not be obtained when preparing the SERS samples without NaCl, and it was also shown that the intensity of Raman peaks has a relationship with the concentration of NaCl. With the increase in the concentration of NaCl, the intensity of Raman peak at 1 392 cm(-1) has a maximum value. This report explained the reason why NaCl can affect the intensity of SERS theoretically. It was also shown that the SERS spectrum of TNT treated with basic hydrolysis is more intense than that without basic hydrolysis.
引用
收藏
页码：686 / 690
页数：5
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