Technologies and Techniques for Detection of Nitrate in potable water: A Review

Abstract

In agricultural and industrial production nitrate is widely used. Nitrate is appearing in water, environment, biology and food. Nitrate is a toxic inorganic contaminant, that’s why it is perilous to the health living organisms and humans. In recent years, a variety of techniques has been developed for monitoring of nitrate. This paper aggregated as a general survey of the techniques proposed for nitrate monitoring and important monitoring parameters (such as detection limit, working pH, detection range and materials) were classified. This paper is composed of the sort of signal got from techniques, including optical and electrical signals.Electrochemical techniques get an electric signal from dissolved nitrate, with impedimetric, potentiometric and voltammetric techniques are included. Raman Spectrometry, fluorescence and absorption techniques receive an optical signal. In recent years, Biosensors are proposed for monitoring the nitrate in water. The limitations and disadvantages/advantages of the techniques are discussed in this paper. At last, techniques employed to perform nitrate, monitoring is summarized, and their future scope and development are discussed.