Dual-Wavelengths Spectrophotometry for Improving the Determination of Acetone in Waste Water

摘要

The conventional reaction of acetone with furfural in the presence of sulfuric acid to form a red substance which has been applied for the improvement of the determination of trace amounts of acetone in water and waste water by the updated method named primary-secondary wavelengths spectrophotometry (PSWS). The results showed tha the analytical precision and accuracy were increased and gave the higher sensitivity than the ordinary spectrophotometry.The relative standard deviations were less than 2% and the recovery rate of acetone between 92.7 and 101%.