【作者】 张桂霞； 王继芬； 陈占合；

【Author】 ZHANG Gui-xia~1,WANG Ji-fen~2,CHEN Zhan-he~1 (1.Forensic Science & Technology Institute,Beijing Security Bureau,Beijing 100045,China;2.Department of Forensic Science & Technology,Chinese People’s Public Security University,Beijing 100038)

【机构】 北京市公安局刑事科学技术研究所； 中国人民公安大学刑事科学技术系；

【摘要】 <正>在实际办案中,经常需要对附着在不同载体上的油脂斑痕进行检验,嫌疑斑痕为何类何种油脂对案件的侦破有重大意义。各个领域的专家对动植物油的成分进行研究的目的各不相同,食品工业中偏重于动植物油的食用价值,医学中偏重研究油脂对身体的益处或危害,而司法鉴定领域,偏重于对常更多还原

【Abstract】 The discrimination between animal oil and vegetable oil was analyzed by gas chromatography -mass spectroscopy(GC -MS) using esterifying oils under the presence of KOH.Six main fatty acids(myristic acid, palmitoleic acid,palmitic acid,linoleic acid,oleinic acid and stearic acid) were determined.It was found that animal oil and vegetable oil not only has a difference in components and relative content,but also has a difference in unsaturation.According to all of these differences,animal oil can be discriminated from vegetable oil.更多还原