论文部分内容阅读
目的:建立降香油中氧化橙花叔醇Ⅰ、氧化橙花叔醇Ⅱ、反式橙花叔醇含量测定方法,并比较不同批号的降香油中氧化橙花叔醇Ⅰ、氧化橙花叔醇Ⅱ、反式橙花叔醇的含量。方法:采用气相色谱法,DB-Wax弹性石英毛细管柱(250μm×30 m,0.25μm),以FID检测器,内标为萘。结果:降香油中氧化橙花叔醇Ⅰ、氧化橙花叔醇Ⅱ、反式橙花叔醇的含量分别为16%~20%,19%~25%,25%~30%,氧化橙花叔醇Ⅰ、氧化橙花叔醇Ⅱ、反式橙花叔醇分别在0.018 96~0.113 73,0.019 01~0.114 06,0.013 02~0.078 09 g·L-1呈良好的线性关系,平均回收率分别为98.10%,98.79%,98.95%。结论:采用气相色谱法测定降香油中氧化橙花叔醇Ⅰ、氧化橙花叔醇Ⅱ、反式橙花叔醇含量,方法简单、可行。7个批号的降香油的含量差别不大。
OBJECTIVE: To establish a method for the determination of the contents of erythritol, erythrodiol and trans-nerolidol in the reduced sesame oil, and to compare the effects of different concentrations of oxalicolide I, Ⅱ, trans-nerolidol content. Methods: Gas chromatography was used to determine the FID detector with DB-Wax elastic quartz capillary column (250μm × 30μm, 0.25μm). The internal standard was naphthalene. Results: The content of nerolidol I, nerolidol II and nerolidol were 17% -25%, 19% -25%, 25% -30% Tertiary alcohol I, nerolidol II and trans-nerolidol showed a good linear relationship between 0.018 96 ~ 0.113 73,0.019 01 ~ 0.114 06,0.013 02 ~ 0.078 09 g · L-1, respectively. The average recovery Respectively 98.10%, 98.79%, 98.95%. Conclusion: It is simple and feasible to determine the contents of tertiary orange oxide, nerolidol II and nerolidol in the descented sesame oil by gas chromatography. 7 batches of sesame oil content difference is not big.