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Příspěvek ke stanovení celkového dusíku v odpadních vodách metodou oxidační mineralizace peroxodisíranem
[Contribution to determination of total nitrogen in waste waters by peroxodisulfate oxidation]
Miroslav Holacký, Petr Praus
Chemické listy.
2008 ;
102 (7) :
521-526.
Jazyk čeština Země Česko
Perzistentní odkaz
https://www.medvik.cz/link/bmc07511662
In the title method, nitrates are determined in mineralizates by measuring the difference in absorbances at 216 and 218 nm. Thus the effect of incomplete decomposition of the sample matrix is eliminated. The simple, rapid and inexpensive method combining the oxidation mineralization and UV photometry is suitable for analysis of large series of water samples. The yield of oxidative mineralization of NH3 decreases at concentrations higher than 5 mg l-?1. An addition of CH2O eliminates the loss of NH3 due to the formation of NH3-CH2O condensation products.
Contribution to determination of total nitrogen in waste waters by peroxodisulfate oxidation
Bibliografie atd.
Lit.: 26
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