Indirect spectrophotometric determination of paracetamol via oxidative coupling reaction with 4-(2-pyridylazo)-resorcinoI

A rapid, sensitive and simple spectrophotometric method is proposed for the determination of paracetamol, The method is based on the oxidation of the hydrolytic product of paracetamol by potassium periodate and coupled with 4-(2-pyridylazo)-resorcinoI in the presence of sodium hydroxide. The absorba...

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Main Authors: Thabit Al-Ghabsha, Theiaa N. Al-Sabha, Amal Saeed
Format: Article
Language:Arabic
Published: College of Education for Pure Sciences 2006-01-01
Series:مجلة التربية والعلم
Subjects:
Online Access:https://edusj.mosuljournals.com/article_79220_f6ab0e5bb151cfc98afb22a2a419602e.pdf
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author Thabit Al-Ghabsha
Theiaa N. Al-Sabha
Amal Saeed
author_facet Thabit Al-Ghabsha
Theiaa N. Al-Sabha
Amal Saeed
author_sort Thabit Al-Ghabsha
collection DOAJ
description A rapid, sensitive and simple spectrophotometric method is proposed for the determination of paracetamol, The method is based on the oxidation of the hydrolytic product of paracetamol by potassium periodate and coupled with 4-(2-pyridylazo)-resorcinoI in the presence of sodium hydroxide. The absorbance of the yellowish-brown product is measured at 450 nm and the molar absorptivity found to be 5252 l.mol" '.cm'1. The product conforms to Beer's law over the range 0.4-22.0fig ml". The method is successfully employed for assay of paracetamol in tablets and results have been compared with those obtained by the official method.<br /> Keywords: Paracetamol; oxidative coupling; spectrophotometry.
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spelling doaj.art-5b32747242bf40c88f69cb3d72a83b502022-12-22T00:52:37ZaraCollege of Education for Pure Sciencesمجلة التربية والعلم1812-125X2664-25302006-01-01181112110.33899/edusj.2006.7922079220Indirect spectrophotometric determination of paracetamol via oxidative coupling reaction with 4-(2-pyridylazo)-resorcinoIThabit Al-GhabshaTheiaa N. Al-SabhaAmal SaeedA rapid, sensitive and simple spectrophotometric method is proposed for the determination of paracetamol, The method is based on the oxidation of the hydrolytic product of paracetamol by potassium periodate and coupled with 4-(2-pyridylazo)-resorcinoI in the presence of sodium hydroxide. The absorbance of the yellowish-brown product is measured at 450 nm and the molar absorptivity found to be 5252 l.mol" '.cm'1. The product conforms to Beer's law over the range 0.4-22.0fig ml". The method is successfully employed for assay of paracetamol in tablets and results have been compared with those obtained by the official method.<br /> Keywords: Paracetamol; oxidative coupling; spectrophotometry.https://edusj.mosuljournals.com/article_79220_f6ab0e5bb151cfc98afb22a2a419602e.pdfspectrophotometricparacetamoloxidative coupling reactionpyridylazo
spellingShingle Thabit Al-Ghabsha
Theiaa N. Al-Sabha
Amal Saeed
Indirect spectrophotometric determination of paracetamol via oxidative coupling reaction with 4-(2-pyridylazo)-resorcinoI
مجلة التربية والعلم
spectrophotometric
paracetamol
oxidative coupling reaction
pyridylazo
title Indirect spectrophotometric determination of paracetamol via oxidative coupling reaction with 4-(2-pyridylazo)-resorcinoI
title_full Indirect spectrophotometric determination of paracetamol via oxidative coupling reaction with 4-(2-pyridylazo)-resorcinoI
title_fullStr Indirect spectrophotometric determination of paracetamol via oxidative coupling reaction with 4-(2-pyridylazo)-resorcinoI
title_full_unstemmed Indirect spectrophotometric determination of paracetamol via oxidative coupling reaction with 4-(2-pyridylazo)-resorcinoI
title_short Indirect spectrophotometric determination of paracetamol via oxidative coupling reaction with 4-(2-pyridylazo)-resorcinoI
title_sort indirect spectrophotometric determination of paracetamol via oxidative coupling reaction with 4 2 pyridylazo resorcinoi
topic spectrophotometric
paracetamol
oxidative coupling reaction
pyridylazo
url https://edusj.mosuljournals.com/article_79220_f6ab0e5bb151cfc98afb22a2a419602e.pdf
work_keys_str_mv AT thabitalghabsha indirectspectrophotometricdeterminationofparacetamolviaoxidativecouplingreactionwith42pyridylazoresorcinoi
AT theiaanalsabha indirectspectrophotometricdeterminationofparacetamolviaoxidativecouplingreactionwith42pyridylazoresorcinoi
AT amalsaeed indirectspectrophotometricdeterminationofparacetamolviaoxidativecouplingreactionwith42pyridylazoresorcinoi