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This research studies in detail the contents of phenolic compound by complexing with N-Phenyl- benzo-hydroxamic acid , carried out by spectrophotometric method .The waste samples were collected from Mandideep industrial area of Bhopal .Phenols can be detected at wavelength between 505-522nm immediately after mixing N-Phenyl-benzo-hydroxamic acid with vanadium (V) in acidic medium, without heating ,in buffer medium. This results in the formation of reddish violet to violet coloured complexes in chloroform. By variation of pH, temperature ,time ,concentration of reagent , an optional system for determination of phenols in waste water was found. The results showed that phenols concentration had an excellent linear relationship over a range of 0.00010-0.00110, 0.000122-0.00122, 0.000113-0.00113, and 0.000128-0.00128 µg/ml, Sandells sensitivity 1.0X10 -6 ,1.1X10 -6 , 1.0X10 -6 and 1.2X10 -6 , relative standard deviation 1.37% ,1.91% ,1.47% and1.13%,molar absorptivity 9.090X10 5 , 8.216X10 5 ,8.849X10 5 and 7.812X10 5 for α-naphthol, β-naphthol, p- aminophenol and resorcinol, respectively . The method is found to be very sensitive, stable , reproducible , rapid

Determination of phenol compounds in waste water by using compelling agent: N-Phenyl-benzoic-hydroxamic acid