摘要
采用程序升温气相色谱法测定山胡椒油中柠檬醛的含量。实验结果表明：采用程序升温测定柠檬醛，分离效果好，标准曲线的线性相关系数为0．9995，检出限为0．47mg,／L；通过做3个不同添加量的样品加标回收实验，柠檬醛测定的回收率分别为90．8％、92．7％和94．0％，相对标准偏差分别为3．0％、1．7％和1．2％；对13组样品进行测定，柠檬醛含量在74．2％～88．8％，相对标准偏差为0．82％-4．90％。根据实验结果，该方法对山胡椒油中柠檬醛含量的测定具有较好的准确度和精密度。
Content of citral in Litsea cubeba oil was separated by programmed temperature gas chromatography. The linear correlation coefficient was 0. 9995 and the Limits of detection was 0.47mg/L. The recoveries obtained from samples spiked with standards at the three different level were 90. 8%, 92.7% and 94.0%, respectively. The relative standard deviations were 3.0%, 1.7% and 1.2%. Citral content in thirteen samples were in the range of 74. 2% - 88. 8%, and the relative standard deviations were in the range of 0.82% - 4.90%. The method had good accuracy and precision.
出处
《中国食品添加剂》
CAS
北大核心
2014年第3期204-207,共4页
China Food Additives
关键词
山胡椒油
柠檬醛
气相色谱
程序升温
Litsea cubeba oil
citral
gas chromatography
temperature programmed
