大家有谁做过ACE抑制活性的测定,用HHL做底物,228nm测吸光值的?想知道计算公式里面空白的含义:ACE inhibition(%)=[(B-A)/(B-C)]*100A:the absorbance of HA generated in the presence of ACE inhibitor componentB:the absorbance of HA generated without ACE inhibitorsC:the absorbance of HA generated without ACEB应该是对照,A是样品测定,C是空白,但不明白具体含义,空白到底应该怎么加样,还有调0用什么?缓冲液还是水?大家有谁知道的,请指点一二。谢谢~