Spectrophotometric Determination of Nitrite, Nitrate and Ammonium in Aqueous Medium

Quantitative determination of substances in the aqueous environment is vital and necessary subject before any research activity. Nitrogenous compounds are commonly found in water and wastewater and, their identification methods are very important. In this research among different approaches, spectrophotometric method has been introduced as one of the simplest tools to measure the concentration of nitrite, nitrate and ammonium in aqueous solution. Nitrite is defined using the N-(۱-naphthyl)-ethylenediamine dihydrochloride as reagent up to ۱ mg/L at a wavelength of ۵۴۳ nm. Nitrate can be measured using ۱ N hydrochloric acid reagent up to ۱۰ mg/L at a wavelength of ۲۲۰ nm. Ammonium determination is done using Nessler's reagent up to ۱۰ mg/L at a wavelength of ۴۲۵ nm.

کلیدواژه ها:

Spectrophotometer ، Nitrite ، Nitrate ، Ammonia ، Ammonium