Owing to the fluxing oil contained in the Vitamin A preparation and other impurities mixed in Vitamin A material drug, the determined absorbance is not particular to Vitamin A.

• 由于维生素A制剂中含有稀释用油和维生素A原料药中混有其他杂质，所测得的吸收度不是维生素A独有的吸收。