全二维气相色谱法测定柴油和生物柴油混合燃料中7种脂肪酸甲酯含量  

Determination of seven fatty acid methyl esters in diesel-biodiesel blend fuel by comprehensive two-dimensional gas chromatography

作　　者：林海 关剑锋[2] 毛容妹[2] 余建龙 李丹[2] 李展江 

机构地区：[1]湛江出入境检验检疫局,广东湛江524022 [2]广东出入境检验检疫局检验检疫技术中心,广东广州510623

出　　处：《现代化工》2016年第2期188-190,共3页Modern Chemical Industry

基　　金：国家质检总局科技计划项目(2013IK004;2013IK003)

摘　　要：建立了全二维气相色谱法测定柴油和生物柴油混合燃料中7种常见脂肪酸甲酯（月桂酸甲酯、肉豆蔻酸甲酯、软脂酸甲酯、硬脂酸甲酯、油酸甲酯、亚油酸甲酯、亚麻酸甲酯）含量的方法。采用外标法定量,7种脂肪酸甲酯的标准曲线的线性相关系数r为0.999 13~0.999 97,检出限为2.2~5.2 mg,加标回收率在92.0%~104.0%之间,相对标准偏差为2.3%~4.7%（n=8）。方法操作简单、快速、重复性好,适用于柴油和生物柴油混合燃料中脂肪酸甲酯的测定。A method for determination of seven familiar fatty acid methyl ethers in diesel-biodiesel blend fuel is established by comprehensive two-dimensional gas chromatography. With external standard quantitative method, tbe correlation coefficients for seven familiar fatty acid methyl esters are detected as 0. 999 13 - 0. 999 97 with detection limits of 2. 2- 5.2. The spiked recoveries are around 92. 0% -104. 0%. The relative standard deviations （n = 8 ）are 2. 3% -4. 7%. This method is simple,rapid and accurate,which can be applied to detemining the fatty acid methyl ester in diesel-biodiesel blend fuel.

关 键 词：全二维气相色谱法 柴油和生物柴油混合燃料 脂肪酸甲酯 

分 类 号：O656.31[理学—分析化学]