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【多选题】
用 HPLC 法检查药物中的特殊杂质限量,关于“加校正因子的主成分自身对照法”叙述正确的是( )A.
适合于有杂质对照品，但是不易获得的情况；
B.
因为检测器对药物中主成分和待测杂质具有不同的响应，因此需要用校正因子校正杂质的实测峰面积；
C.
杂质相对于主成分的相对定量校正因子的测定：需要配制杂质对照品和主成分对照品的混合溶液，注入液相色谱仪测定各自峰面积和浓度的比值，计算校正因子；
D.
用该方法测定特殊杂质限量的药品质量标准中载有定量校正因子 f 杂质 ，在常规检验中，以 f 杂质 校正该杂质的实测峰面积。
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举一反三
【单选题】Most people have had a dog or wanted one as their companion at some time in their lives. If you are thinking of buying a dog, however, you should first decide what sort of companion you need and wheth...
A.
You can go and get help from the specialists.
B.
You can depend on common sense when choosing a dog.
C.
You should decide what kind of dog you want.
D.
You should consider the size of the dogs.
【简答题】核心期刊
【简答题】核心期刊
【单选题】Most people have had a dog or wanted one as their companion at some time in their lives. If you are thinking of buying a dog, however, you should first decide what sort of companion you need and wheth...
A.
You can always get help from the specialists.
B.
It is common sense that is the most important when choosing a dog.
C.
You should decide what kind of dog you want.
D.
Size and characteristics of the dogs should be considered too.
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