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201130142

新虫 (小有名气)

[求助] 英国药典 制备参比溶液时在对照品后写着(杂质C)是什么意思

Reference solution (a)
Dissolve 50.0 mg of salicylic acid R (impurity C) in the mobile phase and dilute to 50.0 mL with the mobile phase. Dilute 1.0 mL of this solution to 100.0 mL with the mobile phase.
括号里的杂质C是要我们自己加入,加入多少量?还是别的意思?谢谢
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201130142

新虫 (小有名气)

这个我已经明白了,不劳烦大家了
2楼2012-09-26 16:21:01
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