A potentiometric titration method has been used for the determination of 4-Hydroxybiphenyl with N-bromosuccinimide (NBS). The organic compound like 4-Hydroxybiphenyl is less soluble in aqueous media, while platinum indicator requires aqueous medium for potential measurements. Therefore, a mixed organic-aqueous medium has been used to dissolve 4-Hydroxybiphenyl for its determination with N-bromosuccinimide. A linear curve is obtained by plotting peak height (cm) vs. concentration (mg) of 4-Hydroxybiphenyl determined. The method is simple, as it requires only readily available laboratory equipment. At moderate concentration of the analyte, the error is within the range +0.1 to -0.4. However, at lower concentration, typically a few mg of the analyte, the error range is -3.3 to -3.6.
INAM UL HAQUE ,A KHAN ,S A HUSSAIN ,
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