美通宁片中褪黑素的含量测定
Determination of melationin in meitongning tablest by TLC-scanning
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摘要: 目的:制定美通宁片中褪黑素质量控制指标。方法:采用薄层扫描法测定美通宁片中褪黑素的含量,以苯∶氯仿∶甲醇(4∶9∶1)为展开剂。结果:通过方法学考察,平均回收率98.5 %。变异系数RSD=4 .12 %。结论:方法可靠、准确,操作简便易行Abstract: OBJECTIVE:To establish the quality control standard for melatonin in Meitongning tablets.METHOD:The malatonin in meitongning tablets was determined by TLC scanning using a mixture of benzene:chloroform:methyl aclcohol(4:9:10) as the mobile phase.RESULTS:
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