Hydrogen peroxide is a very unstable compound in the presence of heavy metals, dust, and light, as it rapidly decomposes into oxygen and water. In the bachelor thesis, we determined the concentration of hydrogen peroxide by titration with potassium permanganate, sodium thiosulfate and cerium sulfate. The analyzes were carried out with a sample of 60 % hydrogen peroxide. We wanted to find out whether all three titration methods were suitable for analyzing our sample and whether the results were comparable. We determined the concentrations of fluoride, chloride, bromide, nitrite, nitrate, sulphate, and phosphate in hydrogen peroxide samples using ion chromatography. The method was optimized using a potassium hydroxide concentration gradient and also validated. We determined the linearity within the working range and calculated the detection and quantification limit for each individual anion. The aim was to assess whether ion chromatography is a sufficiently precise method for the determination of low anion concentrations in hydrogen peroxide. The PAP sample was analyzed spectrophotometrically in the UV-vis range and by titration with thiosulphate according to already established methods. We tested whether the absorbance of emulsions can be measured and whether these two methods are suitable for our sample. All hydrogen peroxide samples were provided by the Belinka d.o.o company.
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