Chemistry Journal of Moldova

METHOD FOR NITRATE DETERMINATION IN WATER IN THE PRESENCE OF NITRITE

Author(s):

Maria Sandu, Tudor Lupascu, Anatol Tarita, Tatiana Goreacioc, Sergiu Turcan, Elena Mosanu


Field: Analytical chemistry
Type: Research paper
Issue: 2014 Volume 9, no.2
Pages: 8-13
Keywords:

water, nitrate determination, nitrites, sulfaminic acid, Griess reagent, reducing mixture


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Abstract (PDF)

DOI:
dx.doi.org/10.19261/cjm.2014.09(2).01

Graphical Abstract:
 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 fish farms and public aquaria where autonomous filters is used. The nature and quantity of reagents used have insignificant 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 Na2SO4 and zinc dust in ratio of 100:5 and determining the nitrite with the Griess reagent.


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