分析器
化学
工艺工程
实验设计
氮气
口译(哲学)
选择(遗传算法)
生化工程
色谱法
计算机科学
有机化学
统计
人工智能
工程类
数学
程序设计语言
作者
Thierry Saint-Denis,Jacques Goupy
标识
DOI:10.1016/j.aca.2003.10.090
摘要
The objectives of this work was to obtain a total nitrogen concentration in milk with the Dumas method for industrial and research applications. This method was faster than the Kjheldal method (5 min against 2 h or 3 h) but less precise. A three factor experimental design was performed to optimize the instrument, a FP-2000 supplied by LECO. The first interpretation of the experimental design was disappointing and no conclusion could be done. It was not a failure of experimental design but a lack of thinking on the physical and chemical aspect of the problem. Selection and construction of composite responses based on chemical and physical consideration were the keys to optimize the Dumas method. This method is now as precise as the Kjheldal method, but considerably faster.
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