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Determination of zinc pyrithione as cosmetic material by automatic titratio
Pages: 201-202
Year: Issue:  4
Journal: Qilu Pharmaceutical Affairs

Abstract: 目的 建立发用产品中去屑剂吡硫翁锌原料的含量测定方法.方法 利用盐酸将样品酸化溶解,根据氧化还原反应的原理,采用自动滴定法,以碘标准溶液滴定测定确定样品中吡硫翁锌含量.结果 该法测定吡硫翁锌精密度小于0.5%,加样回收率为97.5%~102.1%.结论 该方法 准确、快速、简便,适合化妆品原料吡硫翁锌的含量测定,为吡硫翁锌质量控制提供了方法.
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