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气相色谱法同时测定血清中甲醇、乙醇、正丙醇
引用本文:郝红霞,杜然,陈新明,赵敬真.气相色谱法同时测定血清中甲醇、乙醇、正丙醇[J].刑事技术,2012(6):8-12.
作者姓名:郝红霞  杜然  陈新明  赵敬真
作者单位:1. 中国政法大学,证据科学教育部重点实验室,北京100040
2. 公安部物证鉴定中心,北京,100038
基金项目:中国政法大学青年教师学术(创新团队资助项目;中国政法大学省部级合作项目
摘    要:目的建立气相色谱同时测定血清中甲醇、乙醇、正丙醇含量的方法。方法改变气相色谱条件,以异戊醇为内标,采用气相色谱一氢火焰离子化检测器对血清直接进行检测。并通过待测组分与内标物的响应值比进行定量。结果GC/FID法检测血清中的甲醇、乙醇、正丙醇含量,得到了良好的线性关系。乙醇浓度从1~100mg/100ml。的线性关系式为Y=0.4145X+0.0232(R2=0.9974)、浓度从100~1000mg/100mL的线性关系式为Y=0.4511X+0.0746(R2=0.9911),甲醇浓度从l-200mg/100mL的线性关系式为Y=0.2778X+0.0493(R2=0.9983)。结论该方法操作简便快速,重现性好,通过检测正丙醇还可以推断腐败血样自身产生的乙醇量,是一种较为理想的血醇检测方法。

关 键 词:甲醇  乙醇  正丙醇  血清  测定

Simultaneous determination of methanol, ethanol and propanol in blood by GC/FID
Institution:HAO Hong-xia, DU Ran, CHEN Xin-ming, et al. (Key Laboratory of Evidence Science (CUPL), Ministry of Educa tion , Beijing 100088, China)
Abstract:Objective To develop a method for simultaneous determination of methanol, ethanol and propanol in blood by Gas Chromatography. Methods Conditions of gas chromatography were optimized and then blood serum samples were analyzed quantitatively by GC/FID. Results Linear relations of ethanol were Y= 0. 4145X+ 0. 0232 (R2 = 0. 9974)for the concentration ranged from 1 to 100mg/100mL and Y= 0. 4511X2-0. 0746 (R2 = 0. 9911)for the concentration ranged from 100 to 1000mg/ 100mL. Linear relation of methanol was Y=0. 2778x+0. 0493(R2 =0. 9983) for the concentration ranged from 1 to 200mg/ 100mL. Conclusion This method can be applied in clinical diagnosis of poisoning and forensic analysis of alcohol in blood.
Keywords:Methanol  Ethanol  Propanol  Serum  Detection
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