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提供了一种准确测定口服液中神经酸含量的方法。样品经预处理后，用BF3－CH3OH酯化，以邻苯二甲酸二壬酯为内标测定口服液中神经酸含量。所提供的方法线性范围为0．3～3g／L，平均回收率为97．04％，RSD为0．90％，经空白试验，对神经酸含量测定无干扰。
A method for accurately determining the amount of niacin in an oral solution is provided. The sample was pre-treated with BF3-CH3OH esterification, dinonyl phthalate as the internal standard determination of oral niacin content. The proposed method has a linear range of 0.3 ~ 3g / L, an average recovery of 97.04% and a RSD of 0.90%. After blank test, there was no interference with the determination of niacin content.