| Abstract: | HCPCF is a color reagent for the determination of vanadium, zinc and magnesium, etc. To the best of our knowledge, no work on the decoloring reaction for analytical use of HCPCF for the determination of oxidative anions has been report. In this work, we found that some oxidative anions can oxidize HCPCF in acid medium, forming a colorless product. In addition, surfactant was used in this work, because of the low solubility of HCPCF in aqueous solutions. The purpose of this work is to establish a new, rapid and simple spectrophotometric method for the determination of NO2-, BrO3-,IO3-, IO4-and Cr2O7-based on the reaction between HCPCF and analytes in the presence of emulsion OP. |
