Analytical study demonstrates an eco-friendly protocol for nitrate determination in nitrite-rich water samples, highlighting safe applications for drinking and environmental water monitoring.
The study relates to determination of nitrate in presence of nitrite in water and can be used in the quality monitoring of natural water (surface and groundwater), drinking water, water from fi sh farms and public aquaria where autonomous fi lters is used. The nature and quantity of reagents used have insignifi cant impact on natural waters and sewages. According to the investigation, the method includes the removal of nitrite from the solution/water with sulfaminic acid, the nitrate ion reduction to nitrite using a reducing mixture that contains Na 2 SO 4 and zinc dust in ratio of 100:5 and determining the nitrite with the Griess reagent.
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Sandu et al. (2014) studied this question.
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