论文部分内容阅读
目的:采用判别分析法利用脂类化学成分的不同来鉴别羚羊角及其混伪品。方法:溶剂法提取脂类成分,经甲酯化,采用气相色谱法分离,归一化法计算相对百分含量,并进行判别分析。结果:采用气相色谱法在选定的色谱条件下,对羚羊角及其混伪品进行判别分析,判别符合率100%,可区分羚羊角及其混伪品。结论:可利用判别分析法鉴别羚羊角及其混伪品。
OBJECTIVE: To identify the antelope horn and its counterfeit products by discriminant analysis using the chemical composition of the lipids. Methods: Lipid components were extracted by solvent method, methyl esterified, separated by gas chromatography and normalized to calculate the relative percentage, and discriminant analysis was conducted. Results: Gas chromatography was used to discriminate the antelope horn and its adulterants under the selected chromatographic conditions. The discriminant rate was 100%, which could distinguish the antelope horn and its adulterants. Conclusion: Discriminant analysis can be used to identify the antelope horn and its counterfeit products.