对利用差谱—二阶导数分光光度法直接测定强干扰基体中微量组分的原理和实验方法进行了探讨。
A new method for determining directly trace component in interfering base by absorbance subtraction -second derivative spectrophotometry is proposed.
利用差分法、平滑法减小测量结果中的随机噪声；
Random noise are minished by using method of difference and flatness .
分散度检验法和横截面收益绝对差检验法是检验证券市场中羊群行为的两种方法。
Dispersal degree test and cross sectional absolute deviation test are two kinds of methods to test herding behavior on the financial market.
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