organic impurity test [有化] 有机杂质检验
Assay and test for impurity 含量测定和杂质测定
impurity limit test 杂质限量检查
impurity limited test 杂质限量分析
One would typically include tests where variability is seen, for example, impurity test, assay, moisture, etc.
只需要对那些可能变化的项目进行测试，例如杂质测试，含量测试，水分等等。
As for assay: analysis results shall be compared, as for test for impurity: if chromatographic graphs are available, peaks of impurities shall be compared.
含量测定应比较两方法的分析结果，杂质测定若有色谱图，则应对比杂质峰的形状。
As to test for impurity: a certain amount of the impurity may be added to the sample to testify the accuracy and precision of the method.
对于杂质的测定，一般取含一定杂质量的样品进行分析，证明此杂质测定其具有适宜的准确度和精密度。
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