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士的宁为马钱子科植物马钱Ｓｔｙｃｈｎｏｓｎｕｘ ｖｏｍｉｃａｌ或云南马钱Ｓ .ｐｉｅｒｒｉａｎａＡ .Ｗ .Ｈｉｌｌ的干燥成熟种子中的一种有效成分。为确保该成品安全有效 ,必须采用可靠简便的含量测定方法严格控制士的宁的含量。1 分光光度法1 .1 紫外分光光度法 利用
Strychnine is an active ingredient in the dried ripe seeds of Strychnos Styx botnv. Vomical or Yunnan Strychnos S.pierriana A.W.Hill. In order to ensure that the finished product is safe and effective, we must strictly control the content of strychnine by a reliable and convenient method for determination of content. 1 spectrophotometry 1 .1 UV spectrophotometry use