二硝基苯肼法测定电解混合液中苯甲醛的含量

Determinating Content of Benzaldehyde in Mixed Electrolyte During Electrolysis by 2, 4-Dinitrophenylhydrazine Method

本文作者用腙生成法分析了甲苯电解氧化生成苯甲醛过程的混合液里苯甲醛的含量．探讨了沉淀剂用量、酸度及混合液中其他共存物的影响．实验结果表明，该方法具有分析数据稳定、结果可靠、精密度较高、易于操作和重现性好等特点，回收率达到９６％～１０４％，可以作为电解过程生成的苯甲醛含量分析的一种实用方法．

This paper reported that determinating content of benzaldehyde in mixed electrolyte during electrolysing toluene to producing benzaldehyde by producing hydrazone analysis method. Influence of precipitating agent, acidity (acid content), composition in mixed electrolyte to analysis results was researched. The experimental results showed that this analytical approach have properties of stable date, nice reappearance, operate easily, high precision and degree of accuracy. It is a practical analysis method for determinating content of benzaldehyde during electrolysis.