Seeking recommendations for the optimal methodology to quantitatively determine perchlorate ion concentrations within a liquid medium containing various additional components, perchlorate concentration ranging from 0.01M to 0.2M. Your expertise and insights regarding the most effective analytical techniques and instrumentation for this complex matrix would be greatly appreciated.
This method measures accurately between 0.1 to 0.2 % perchlorate : A simple gravimetric method for the determination of perchlorate | Monatshefte für Chemie - Chemical Monthly (springer.com)
Ohter methods available in attachment
A simple gravimetric method for the determination of perchlorate
Monatshefte für Chemie - Chemical Monthly Volume 149, pages 323–326, (2018)
Glenn Hefter
A simple, inexpensive, and accurate gravimetric procedure for the determination of the perchlorate ion (ClO4 −) is described. The method is based on the precipitation of potassium perchlorate, KClO4(s), from wet ethanol solution using potassium acetate in ethanol as the precipitant. The method is particularly suited to the analysis of the concentrated perchlorate solutions commonly used in physicochemical, electrochemical, and solubility studies. An accuracy of 0.1–0.2% was readily attainable providing the water content of the precipitating medium was ≤ 5 vol%. Solubility data for KClO4(s) in ethanol-rich mixtures with water are reported.
The best method to quantify perchlorate in a liquid medium is typically ion chromatography (IC). This technique is specifically designed to separate and quantify anions, including perchlorate, with high sensitivity and accuracy.
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