Turkish Journal of Chemistry
DOI
-
Abstract
Hydrogen peroxide (H_{2}O_{2}) plays an important role in natural water samples. In this study H_{2}O_{2} concentrations were quantified in different water samples by chemiluminescence detection. This method was chosen because of its high sensitivity and suitability for determining low concentrations of H_{2}O_{2}. H_{2}O_{2} is introduced to the oxidation reaction of alkaline luminol solutions in the presence of Co^{2 + } ion catalyst. When these components are mixed, blue light (\lambda = 440 nm) is emitted. Maximum chemiluminescence intensity occurs within 2 s after mixing and is continuous for up to a few minutes, permitting accurate measurements at selected delay times. H_{2}O_{2} concentrations being very low in water samples made us use the standard addition method. Thus the sample luminescences were measured by the addition of 25 \mu L 0.075 M H_{2}O_{2} standard solutions. The H_{2}O_{2} content of water samples was between 0.13 mM (in snow water) and 1.51 mM (in Gölbaşı Lake water). The results indicated that H_{2}O_{2} concentrations in surface waters are representative of aquatic life.
First Page
41
Last Page
48
Recommended Citation
TÜĞSÜZ, TUĞBA; GÖK, ELMAS; and ATEŞ, SERDAR (2003) "Determination of H_{2}O_{2} Content of Various Water Samples Using a Chemiluminescence Technique," Turkish Journal of Chemistry: Vol. 27: No. 1, Article 7. Available at: https://journals.tubitak.gov.tr/chem/vol27/iss1/7
