在实际工作中，往往会不断得到新样品数据，可利用递推公式不断地把新信息加入到经验回归方程中去，以构成一个动态的预测系统。
In practical work, new sample data is often obtained continually, so these new data can be joined the empirical equation of regression by using recursive formula, and form a dynamic forecast system.
对样品进行主成分回归分析，所得结果与参考值基本一致。
The principal component regression of samples was made. The obtained results were identical with the reference analytical values.
影响测定结果的分量主要有：标准溶液、回归曲线、样品平行试验、二乙酰一肟分光光度法、分光光度计、取样等。
Mainfactors are as follows: standard solution, regressive curve, parallel experiment of sample, diacetyl monoxide's reagent colorimetric method, spectrophotometer, sampling, etc.
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