單項(xiàng)選擇題溴酸鉀法測定異煙肼含量時(shí),1ml溴酸鉀滴定液(0.01667mol/L)相當(dāng)于異煙肼的毫克數(shù)應(yīng)為(異煙肼的分子量為137.14)()

A.2.286mg
B.1.143mg
C.3.429mg
D.4.572mg
E.1.715mg