火焰光度法快速测定钾肥中的钾含量

Phosphate & Compound Fertilizer(2017)

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Abstract
通过优化钾肥样品前处理条件,建立火焰光度法快速测定不同钾肥中钾含量的方法.样品经研磨、加水溶解、加热煮沸、定容、干过滤、稀释后,直接用火焰光度计测定.结果表明,火焰光度法的加标回收率为95.0%~103.0%,RSD为0.18%~0.50%,能够满足分析检测要求.此方法简便快速、准确可靠,可用于钾肥中钾含量的测定.
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