摘要
参照国家标准GB/T 22110—2008《食品中反式脂肪酸的测定气相色谱法》测定植物油中反式脂肪酸,对测定结果的不确定度进行了评定。结果表明本实验室能准确测定植物油中反式脂肪酸,扩展相对不确定度结果为4.2%(K=2),在整个不确定度中,气相色谱测量结果重复性占总不确定度的比例最大,为今后开展该类项目检测,对其结果准确性的控制提供了技术参考。
The trans fatty acids in vegetable oils were determined according to the national standard GB/T22110 -2008 Determination of trans fatty acids in food -Gas chromatographic method , and the uncer-tainty was assessed. The results showed that the trans fatty acids in vegetable oils could be determined ac-curately by the laboratory,and the extended relative uncertainty of the result was 4.2% （K =2） ; the re-peatability of the result by gas chromatography was the largest percentage of the total uncertainty, whichprovide technical reference for such projects and controlling the accuracy in the future.
出处
《粮油食品科技》
北大核心
2014年第3期54-58,共5页
Science and Technology of Cereals,Oils and Foods
关键词
气相色谱法
植物油
反式脂肪酸
不确定度
gas chromatography
vegetable oil
trans fatty acids
uncertainty
