2006•Chinese Journal of Spectroscopy LaboratoryRequires access
Simultaneous Determination of Benzaldehyde and Benzoic Acid in Electrosynthetic Products by Ultraviolet Spectrophotometry
Yan Li
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Abstract
The simultaneous determination of benzaldehyde and benzoic acid in electrosynthetic products by ultraviolet spectrophotometry was established.5% alcohol solution was chosen as blanks.Benzaldehyde and benzoic acid were determined at 250nm and 225nm in the sample solution.Due to the mutual effect between the two components,standard mixture solution method was employed to simulate the composition of the actual sample,then linear equation groups were set up to eliminate the mutual interference of the determined components.The method is simple and rapid,and it has been applied to the determination of benzaldehyde and benzoic acid in electrosynthetic samples with satisfactory results.The recovery was between 91.9% to 106.5% and 95.8% to 99.2% respectively,and the relative standard deviation was less than 0.15% and 0.92%,respectively.