| 乙醛丙酮分光光度法测定膏霜类化妆品中甲醛含量的不确定度评定 |
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| 引用本文： | 翟宗德,吴小梅,罗音. 乙醛丙酮分光光度法测定膏霜类化妆品中甲醛含量的不确定度评定[J]. 化学分析计量, 2012, 21(4): 16-19 |
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| 作者姓名： | 翟宗德 吴小梅 罗音 |
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| 作者单位： | 1. 华东师范大学生命科学学院,上海,200241
2. 上海应用技术学院化学与环境工程学院,上海,201418 |
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| 基金项目： | 国家质检总局科研资助项目 |
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| 摘 要： | 采用乙醛丙酮分光光度法测定膏霜类化妆品中的甲醛。通过建立数学模型,分析了测定过程中的各种影响因素,如甲醛溶液浓度、定容体积、吸光度、样品称量,对不确定度分量进行了评定和量化。当膏类化妆品中的甲醛含量为4.80μg/g时,扩展不确定度为0.11μg/g(k=2)。
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| 关 键 词： | 化妆品 甲醛 乙醛丙酮分光光度法 不确定度 |
Uncertainty Evaluation of Determination of Formaldehyde in Cream Cosmetic by Acetyl-Acetone Spectrophotometry |
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| Zhai Zongde , Wu Xiaomei , Luo Yin. Uncertainty Evaluation of Determination of Formaldehyde in Cream Cosmetic by Acetyl-Acetone Spectrophotometry[J]. Chemical Analysis And Meterage, 2012, 21(4): 16-19 |
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| Authors: | Zhai Zongde Wu Xiaomei Luo Yin |
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| Affiliation: | 1. East China Normal University, School of Life Science, Shanghai 200241, China ; 2. Shanghai Institute of Technology, School of Chemical and Environmental Engineering, Shanghai 200241, China) |
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| Abstract: | The determination of formaldehyde in cream cosmetic by acetyl-acetone spectrophotometry was developed. Influence factors such as formaldehyde solution concentration, constant volume, absorbance and sample weighing were analysed. The measurement uncertainty components of the method was evaluated. The expanded uncertainty was 0.11μ g/g （k=2） as formaldehyde content of the cream cosmetic was 4.80μ g/g. |
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| Keywords: | cosmetic formaldehyde acetyl-acetone spectrophotometry uncertainty |
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