容量法測定肥料中氮含量不確定度的分析

容量法測定肥料中氮含量不確定度的分析
蓋崴[1] 張玉娟[2] 趙延華[1] 張素艷[1][1]遼寧省分析科學研究院,遼寧沈陽110015 [2]盤錦中潤化工有限公司,遼寧盤錦124022摘　要:通過對蒸餾一滴定法測定肥料中氮含量的不確定度的系統(tǒng)分析，闡述了測量結(jié)果不確定度的主要來源。并對其分量進行了量化計算，最后計算出合成標準不確定度和擴展不確定度。通過評估。得出影響容量法氮含量測定不確定度的主要因素是：溫度變化引起的體積變化。[著者文摘]

關(guān)鍵詞:容量法定氮 不確定度 評定
分類號:　O655.2[著者標引]文獻標識碼：A文章編號：1004-0935（2006）11-0676-03欄目信息：分析檢測
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Analysis of the Uncertainty of the Content of Nitrogen in Fertilizer with Capacity MethodGAI Wei, ZHANG Yu-juan, ZHAO Yan-hua, ZHANG Su-yanGAI Wei, ZHANG Yu-juan, ZHAO Yan-hua, ZHANG Su-yanAbstract:The main reasons of the uncertainty of the result for the content of nitrogen in fertilizer with distillation - titration by systemic analysis were introduced in this paper, the accurate calculation of the standard uncertainty and zxpanded uncertainty were carried out. In a word the affect on the uncertainty of the content of nitrogcn with capacity method was the volume change with the temperature change.[著者文摘]

Key words:Capacity method; Uncertainty; Evaluation