光声光谱法检测韭菜中乙酰甲胺磷农药残留研究  

Determination of Acephate Pesticide Residues in Chives by Photoacoustic Spectroscopy

作　　者：李金婉 龚瑞昆[1] 龚雨含[1] 王崇皓 

机构地区：[1]河北联合大学电气工程学院,河北唐山063009

出　　处：《湖北农业科学》2015年第13期3248-3249,3253,共3页Hubei Agricultural Sciences

基　　金：国家自然科学基金项目(61171058)

摘　　要：利用光声光谱法对韭菜中乙酰甲胺磷残留进行检测。配制不同浓度的乙酰甲胺磷样本用于光声光谱的采集、测定。光谱扫描范围为300～700nm，调制频率为5-200Hz。结果表明，相关系数为0．9981．线性范围为0．00-8．75μg／mL，检出限为0．013μg／mL。与高效液相色谱方法相比无明显差异且重现性好。该研究为叶菜类农药残留检测提供了一种快速分析方法。Photoacoustic spectroscopy was applied for the rapid quantitative determination of acephate residues in chives. Dif- ferent concentrations of acephate were used to collect photoacoustic spectroscopy. Spectral scanning range was 300-700 nm, and the modulation frequency was 5-200 Hz. The results showed that the linear range was 0.00-8.75 μg/mL with correlation coefficient of 0.998 1 ,and detection limit was 0.013 μg/mL. There was good reproducibility and no significant difference with high performance liquid chromatography method. This study can provided a rapid method for the analysis of pesticide residues in leaf vegetables.

关 键 词：光声光谱 乙酰甲胺磷 农药残留 检测方法 

分 类 号：O656.3[理学—分析化学]