Nitrates in fresh water

Devi YP, Kumar NV. 1981. Simple paper and micro thin layer chromatographic method for separation and detection of mercuric chloride, copper sulfate, cadmium sulfate, and silver nitrate in fresh water. J Assoc Off Anal Chem 64 1301 -1304. 

Specific ion electrodes have been used successfully in the determination of nitrate in fresh water Langmuir and Jacobson, 1970) but their application to the determination of nitrate in seawater is limited by interferences from most common anions, especially from chloride. For a detailed discussion of the nitrate electrode see Whitfield and Jagner (1981). 

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