Nitrite anion is among the highly reactive anions and converts the secondary amines to their corresponding carcinogenic N-nitroso metabolites in the human body. Nitrite ion is highly abundant in natural waters and enters the body mainly through the consumption of water and beverages. The concentration of nitrite ion varies according to the nature of the soil, habitat and pollution in various geographical locations. Hence, it is important to assess the quality of water using novel analytical techniques.