【求助】标准曲线的建立及flush medium

原文的意思就是用A和B的峰面积之比啊。你可能没有理解“subtance: internal standard”的意思。这里的substance是指原料药（drug substance），与之对应的是成品（drug product或finished product）。“subtance: internal standard”就是药物比上内标。原文意思如下：
Peak area rations (subtance peak area: internal standard peak area) were evaluated for calculation of the standed curves.

I supposed that “:” is a colon. I realize now that it is a mathematical symbol for “ratio”