微波萃取-火场燃烧残留物紫外分光光度分析  

Microwave-Assisted Extraction-Ultraviolet Spectrophotometric Analysis of the Burning Residue at Fire Scene

作　　者：刘婷琳[1] 马名扬[1] 毕鸿亮[1] 张艳玲[1] 

机构地区：[1]广东省生态环境与土壤研究所分析测试中心广东省农业环境综合治理重点实验室,广州市50650

出　　处：《光谱实验室》2007年第3期371-375,共5页Chinese Journal of Spectroscopy Laboratory

基　　金：广东省科学院分析测试基金项目资助

摘　　要：建立了微波萃取-紫外分光光度分析火场燃烧残留物的方法。用正交实验设计结合单因素试验优化了微波萃取条件:萃取温度65℃,萃取时间5min,萃取溶剂15mL。将萃取方法也进行了比较,结果表明,与超声萃取和搅拌萃取相比,微波萃取法快速、高效。用本法对不同助燃物的紫外光谱中特征吸收峰进行了分析比较,从而快速鉴定助燃物类型。A method for analysis of the burning residue at fire scene was established by ultraviolet spectrophotometry combined with microwave-assisted extraction. The optimal conditions of microwave extracting were obtained by orthogonal test and single factor test：extraction temperature of 60℃ ,extraction time of 10 minute,and the volume of extraction solvent of 15mL. Compared with the ultrasound-assisted extraction method and stirring extraction method, the microwave-assisted extraction method was time saving and more efficient. The method was successfully applied to the rapid identification of different combustion-supporting materials by analyzing and comparing with the characteristic absorption peaks of the UV spectrum.

关 键 词：微波萃取 火场燃烧残留物 紫外分光光度法 

分 类 号：O657.32[理学—分析化学]