| 电感耦合等离子体-原子发射光谱法测定铅笔表面涂层中钡含量的不确定度 |
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| 引用本文： | 洪灯,张航俊,姜士磊.电感耦合等离子体-原子发射光谱法测定铅笔表面涂层中钡含量的不确定度[J].化学研究,2013(2):172-175. |
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| 作者姓名： | 洪灯 张航俊 姜士磊 |
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| 作者单位： | 义乌出入境检验检疫局 |
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| 摘 要： | 采用电感耦合等离子体-原子发射光谱法(ICP-AES)测定了铅笔杆表面涂层中的钡元素含量;讨论了测量不确定度的主要来源,从样品称量质量、定容体积及测定用样品溶液中钡含量等方面对不确定度分量进行了评定,最后计算了检测结果的合成标准不确定度和扩展不确定度.
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| 关 键 词： | 铅笔 涂层 钡含量 ICP-AES法 测定 不确定度 |
Evaluation of uncertainty for determining concentration of barium in coating of pencil by ICP-AES |
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| HONG Deng,ZHANG Hang-jun,JIANG Shi-lei.Evaluation of uncertainty for determining concentration of barium in coating of pencil by ICP-AES[J].Chemical Research,2013(2):172-175. |
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| Authors: | HONG Deng ZHANG Hang-jun JIANG Shi-lei |
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| Institution: | (Yiwu Entry-Exit Inspection and Quarantine Bureau,Yiwu 322000,Zhejiang,China) |
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| Abstract: | The content of barium in the coating of pencil was determined by inductively coupled plasma-atomic emission spectrometry （ICP-AES）. The main sources leading the uncertainty for determination were discussed. The sources of uncertainty in the process of determination of barium were evaluated from sample weight, volume, standard solution and Ba content in to-be- tested sample solution; and then the combined standard uncertainty and expanded uncertainty were calculated. |
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| Keywords: | pencil coating barium content ICP-AES determination uncertainty |
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