An assessment was conducted to compare the precision and accuracy of Nessler, phenate,
salicylate, and ammonia electrode procedures for total ammonia nitrogen (TAN) …

A study was conducted to compare the precision and accuracy of the phenate method and
the salicylate method for determining total ammonia nitrogen concentration in water over a …

According to Riley and Chester (1), there are two wide-ly used methodsfor the analysis of
ammonia in sea water. Ammonia may be oxidized with hypochlorite to NO2-which is then …

An automated method to determine ammonia-nitrogen over a wide concentration range was
developed. The method did not require changes in manifold and sensitivity was altered by …

Electrochemical nitrite and ammonia removal from aqueous solution was investigated.
Operating variables of the electrochemical method including the current input, pH …

An automated nitrate determination is described in which nitrate is reduced to nitrite with
hydrazine sulphate under alkaline conditions in the presence of Cu 2+ and Zn 2+ …

Ammonia nitrogen (ammonia or ammonium) is widely present in natural waters and can
significantly affect aquatic flora and fauna. It plays an extremely important role in human …

We studied a recently described method for the determination of total nitrogen in natural
waters involving sample oxidation with persulfate and subsequent determination of nitrate …

Ammonia nitrogen, consisting of un-ionized ammonia and ammonium, is a key parameter for
studying the nitrogen cycle and indicating water quality. The measurement of these …

Xn aiitomatic method for determining nitrate and nitrite in fresh and saline waters with the
XutoAnalyzer is described, together with details of the analytical system. The method is …