%0 Journal Article %T Spectrophotometric determination of paracetamol in drug formulations with 1 ¨C naphthol %A Aondona M. Iorhemba %A Raymond T. Iorhemen %A Royalty E. Sambo %A Winifred U. Nande %J - %D 2017 %R 10.14419/ijac.v5i2.8313 %X Paracetamol with 1-Naphthol gave an azodye and the concentration of paracetamol was investigated spectrophotometrically. The dye formed with 1-Naphthol as a coupling agent followed Beer Lambert¡¯s law within the range of 2 ¨C 10 ¦ÌgmL-1 of paracetamol at a lambda max (¦Ëmax) of 505nm. The molar absorptively of the azodye coupled with 1-Naphthol was found to be 1.6973¡Á104 dm3mol-1cm-1, r2 was 0.9974. P value was found to be 0.013 at 95% confidence. LOD was 0. 02 ¦ÌgmL-1 while LOQ was 0. 10 ¦ÌgmL-1. The coupling agent has been applied successfully for the analysis of paracetamol in pharmaceutical preparations such as boska, ibex, mixagrip, norgesis and procold with the recovery of 101.27 %, 98.98 %, 99.47 %, 98.28 % and 101.6 % respectively. The relative standard deviation of all the five samples ranged from 0 % to 0.76 %. The method used in the present study may be applied to the determination of trace amount of paracetamol on clinical samples as it is simple, accurate and precise, and also reproducible. %U https://www.sciencepubco.com/index.php/IJAC/article/view/8313