Simultaneous Spectrophotometric Determination of o-Aminophenol and p-Aminophenol Using H-Point Standard Addition Method -Application to Real Waters

  • Nagham N. Habeb Chemistry Department, College of Education, Mosul University, Mosul, Iraq
  • Theia'a N. Al-Sabha Chemistry Department, College of Education, Mosul University, Mosul, Iraq

Abstract

H-point standard addition method (HPSAM) has been applied to the simultaneous determination of o-aminophenol (oA) and p-aminophenol (pA) isomers in binary mixtures. The method is based on the Schiff's base formation of aminophenols with 1,2-naphoquinone sulphonate (NQS) as a chromogenic reagent in the presence of micellar cityltrimethyl ammonium bromide (CTAB) and sodium carbonate. The results showed that simultaneous determinations could be performed with the ratios 0.4 : 2.0 and 4.0 : 2.0 measured at pair of wavelengths (480 and 610) nm with recovery % range 94.75-104.37 % and precision better than 4.0 % when oA considered as analyte and pA as interferent, and a ratio 0.4 : 0.2 and 4.0 : 2.0 measured at 455 and 540 nm with recovery % range 95.37-105.0 % and precision better than 4.0 % when pA considered as analyte and oA as interferent.  

Published
Jun 1, 2012
How to Cite
N. HABEB, Nagham; N. AL-SABHA, Theia'a. Simultaneous Spectrophotometric Determination of o-Aminophenol and p-Aminophenol Using H-Point Standard Addition Method -Application to Real Waters. Pakistan Journal of Analytical & Environmental Chemistry, [S.l.], v. 13, n. 1, p. 10, june 2012. ISSN 2221-5255. Available at: <http://pjaec.pk/index.php/pjaec/article/view/200>. Date accessed: 28 oct. 2020.
Citation Formats
Issue
Vol 13 No 1 (2012): Pakistan Journal of Analytical & Environmental Chemistry
Section
Research Articles

Submission of a manuscript to the Journal will be taken to imply that:

  1. The work is original and has not been previously published (except in the form of an abstract or a part of a published lecture, review or thesis).
  2. It is not being considered for publication elsewhere, and
  3. If accepted for publication, it will NOT be published commercially elsewhere in the same form, in any language, without the consent of Editor or Publisher.