A kinetic spectrophotometeric method for the determination of trace amounts of nitrite (0.2-1.0) mu g/ml has been proposed based on its catalytic effect on the reaction between potassium bromate and bromopyrogallol red in acidic medium. The reaction is monitored spectrophotometrically by appearance of band at 348 nm with respect to blank by fixed time method (15 min). The method has been applied for quantitative determination of nitrite in water samples with coefficient of variation (C.V) within 4.2% (n=3). Pho?oc?H????arameters such as pH, conductivity, hardness and alkalinity were measured immediately. The major and minor metal constituents were determined using Atomic Absorption Spectrophotometer. Sodium concentration was found relatively high in Lahore and more so in Kasur water samples. The results have been discussed with reference to the local soil conditions: and industrial waste pollutants finding their way to the underground water streams.
G M MASTOI ,M Y KHUHAWAR ,I A ANSARI ,A A KHASKHELI ,
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