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ICP-MS法测定卷烟烟丝中钾含量的不确定度评定

Jin-long YANG,Ping ZHU,Li-xia CHENG,Hua-ling HAO,Zhang-ping LV

Guangzhou Chemical Industry（2018）

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Abstract
采用电感耦合等离子体质谱(ICP-MS)法测定卷烟烟丝中钾(K)的含量,通过分析测定过程,确定不确定度的来源,建立ICP-MS法测定钾含量的不确定度评定方法.结果表明:卷烟烟丝中钾的含量为(22.71 +0.92) mg/g.在本方法确定的5个不确定度来源中,样品浓度、重复性和样品水分是ICP-MS法测定中引入的主要来源,而称量和定容引入的不确定度可以忽略不计.
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