ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly
 

The colorimetric determination of nitrates in water

E. Hlucháň and J. Mayer

Institute of Hygiene, Bratislva

 

Abstract: A colorimetric method for detn. of small amts. of nitrates in water by Na salicylate and trichloroacetic acid is described. The max. absorption of the yellow-colored solns. is at 410 mμ. The direct dependence of color intensity on the amt. of nitrates is up to 70 γ NO3- in 50 ml. The interfering effect of cations can be eliminated by filtration through an ion exchanger. Of the anions NO2- increases the color intensity; it can be eliminated by the addn. of a small amt. of Na azide in the ion exchanger before filtration. I- and Br- decrease the yellow-color intensity in amts. over 25 γ.

Full paper in Portable Document Format: 106a387.pdf (in Slovak)

 

Chemical Papers 10 (6) 387–395 (1956)

Friday, March 29, 2024

IMPACT FACTOR 2021
2.146
SCImago Journal Rank 2021
0.365
SEARCH
Advanced
VOLUMES
European Symposium on Analytical Spectrometry ESAS 2022
© 2024 Chemical Papers