制定了盐酸羟胺法测定电合成芳醛的条件,并用该方法测定了电合成对氟苯甲醛样品,方法的回收率为99.97%～100.4%,相对标准偏差为0.084%～0.42%,测定结果和气相色谱分析结果基本一致。因芳醛和亚硫酸氢钠反应不完全,使亚硫酸氢钠法测定结果偏低,证明了亚硫酸氢钠法不适用于芳醛的测定。 The conditions of electrosynthesis of aryl aldehyde were established by hydroxylamine hydrochloride method. The electrosynthesis of p-fluorobenzaldehyde was determined by this method. The recoveries were 99.97% ~ 100.4% and the relative standard deviations were 0.084% ~ 0.42%. The determination results and Gas chromatographic analysis of the results are basically the same. Due to the incomplete reaction of aromatic aldehyde and sodium bisulfite, the result of sodium bisulfite method is low, which proves that sodium bisulfite method is not suitable for the determination of aromatic aldehydes.