氯霉素标准品在免疫亲和色谱柱中的添加回收率为99.8%。
The recovery ratio of CAP in immunoaffinity column is 99.8%.
结果：方法的精密度得到改善，克服了添加回收率偏高的问题。
Results:The precision of the GC method was improved, and it solved the problem that the recoveries of fortified samples trended to upper departure from 110%.
通过添加回收率试验，选择符合《农药残留田间试验准则》的前处理方法。
The experiments of recoveries were finished, the Pre-treatment methods according with Field Trial Standard of Pesticide Residue were choosed.
韭菜中甲基对硫磷的标准添加回收率为83.5%，可满足这种杀虫剂在蔬菜中残留量检测的要求。
The standard adding recovery ratio of methyl parathion on Chinese chives 'sample reaches 83.5%, and can meet the detecting requirement of residues for the pesticide in vegetables.
通过正交试验分析获得较优的萃取条件，并对锌元素作添加回收试验，得回收率为96.24%，变异系数为0.64%；
Betterextract condition is obtained with orthogonal test, and the zinc element is put to the ad-dition and recovery test. The method give recoveries of 96.24%, variation coefficient of0.64%.
通过正交试验分析获得较优的萃取条件，并对锌元素作添加回收试验，得回收率为96.24%，变异系数为0.64%；
Betterextract condition is obtained with orthogonal test, and the zinc element is put to the ad-dition and recovery test. The method give recoveries of 96.24%, variation coefficient of0.64%.
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