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应用紫外分光光度法对外用伤科黄水中主要化学成分生物碱进行了含量测定。其线性范围２～１２μｇ／ｍｌ，相关系数０．９９９７，样品平均加样回收率１００．１１％，变异系数１．９％。
Ultraviolet spectrophotometry was used to determine the contents of alkaloids, the main chemical constituents in the external yellow water of injury. The linear range is 2～12μg/ml and the correlation coefficient is 0.9997. The average sample recovery rate is 100.11% and the variation coefficient is 1.9%.