| 丙烯酸及酯中MEHQ测定的不确定度评定 |
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| 引用本文： | 陆君良.丙烯酸及酯中MEHQ测定的不确定度评定[J].浙江化工,2014(5):42-44. |
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| 作者姓名： | 陆君良 |
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| 作者单位： | 浙江卫星石化股份有限公司 |
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| 摘 要： | 对GB/T 17530.5-1998测定工业丙烯酸及酯中阻聚剂含量的测量不确定度进行评定。分析了标准物质、分析操作、曲线回归、重复性测定等方面对不确定度的影响。结果表明，曲线回归及重复性测定对不确定度影响最大。当样品中MEHQ含量为190.78 mg/kg时， MEHQ含量的扩展不确定度为4.2 mg/kg（k=2）。
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| 关 键 词： | 丙烯酸及酯 MEHQ 不确定度 |
Uncertainty Evaluation of MEHQ in Acrylic Acid and Esters |
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| LU Jun-liang.Uncertainty Evaluation of MEHQ in Acrylic Acid and Esters[J].Zhejiang Chemical Industry,2014(5):42-44. |
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| Authors: | LU Jun-liang |
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| Affiliation: | LU Jun-liang;Zhejiang Satellite Petro-Chemical Co.,Ltd.; |
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| Abstract: | The uncertainty of determination of MEHQ in acrylic acid and esters was evaluated dccording to the method of the GB/T 17530.5-1998. The influencing factors the uncertainty were analyzed from the standard material, operation,curvilinear regression and measurement repeatability etc. The results showed that the effects of curvilinear regression and measurement repeatability were most significant factors. As the con-tent of MEHQ in the sample was 190.78mg/L ,its expanded uncertainty was 4.2 mg/kg（k=2）. |
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| Keywords: | MEHQ acrylic acid and esters MLEHQ uncertainty |
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