摘要
研究了氨基甲酸酯类、苯甲酰脲类、杀菌剂类等几种常用有机杀虫剂的荧光特征,为进一步利用荧光法检测农药提供了理论依据。结果表明,这些有机杀虫剂在一定的溶剂条件下受紫外光激发时能够发出很强的荧光,而且荧光光谱清晰、分辨率高,证明利用荧光光谱法对相关杀虫剂进行定性定量检测分析是可行的。
In the present paper the basic theory that organic molecules can emit fluorescence as they are excited by ultraviolet rays is described, the molecular structures of a few common pesticides, such as carbamate, benzoylurea and fungicide, are analyzed, and the mechanism of fluorescence generation is also ascertained. Consequently, the theoretic basis for further detection of pesticides by means of fluorescence methods is provided. Moreover a steady-state fluorescence spectrograph was applied to con- duct fluorescence spectrum experiments with standard solutions of these pesticides, the fluorescence spectra were obtained, and their fluorescence characteristics were also analyzed. The results indicate that carbamate, benzoylurea and fungicide pesticides may emit strong fluorescence when excited by UV rays under the condition of a certain solvent, their fluorescence spectra are distinct, and the resolution is fine. As a result, it is feasible to carry out qualitative and the quantitative analysis of the concerned pesticides by fluorescence spectral analysis.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2007年第11期2321-2324,共4页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金项目(60272027)
中国石油天然气总公司中青年创新基金项目(07e1011)
黑龙江省博士后基金
黑龙江省自然科学基金项目(F200607)资助
关键词
有机杀虫剂
分子结构
荧光光谱
农药检测
Organic pesticides
Molecular structures
Fluorescence spectrum
Pesticide detecting
