Research on An-ionic Surfactant in Water by Simplified Methylene Blue Spectrophotometry
In this paper,filtering,demulsification,and extraction in pretreatment of national methylene blue spectrophotometry have been optimized to simplify the experimental procedures.To improve fussy extraction,high reagent consumption and reduce interference of experimental equipment on results.The simplified methylene blue spectrophotometry have been used to detect an-ionic surfactant assay in surface water and treated domestic wastewater.The results demonstrate that the method have good precision and accuracy,and no significant differences to national standard.
methylene blue spectrophotometryan-ionic surfactantrelative standard deviationprecisionaccuracy