Equilibrium Constant, Concentrations Study of <i>p-</i>Aminobenzoic Acid in Anionic, Cationic and Non-ionic Surfactants

Albert Antony Muthu Prabhu; Narayanasamy Rajendiran; Kasi Sathiyaseelan

doi:doi:10.11648/j.sjac.20210903.12

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Equilibrium Constant, Concentrations Study of p-Aminobenzoic Acid in Anionic, Cationic and Non-ionic Surfactants

Albert Antony Muthu Prabhu, Narayanasamy Rajendiran, Kasi Sathiyaseelan

Published in Science Journal of Analytical Chemistry (Volume 9, Issue 3)

Received: 18 August 2021 Accepted: 13 September 2021 Published: 12 October 2021

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Abstract

p-aminobenzoic acid (pABA) was used as a probe to study the equilibrium constant in ground and excited state and concentrations of anionic surfactant, cationic surfactant and non-ionic surfactant. The absorption and fluorescence spectral characteristics of pABA were reported in aqueous micellar environments (SDS, CTAB and TW 80) at different pHs. The neutral and monoanion form of pABA is present at both pHs 3 and 7 respectively. The blue shifted fluorescence maximum was accompanied by a great raise in intensity at pH 3 whereas at pH 7 the emission intensity a little increase with increasing micelles concentration. In the acidic medium, the CMC value is increased when compared to neutral solution. The strength of interaction between pABA-micelles at both pHs was estimated using Hirose - Sepulveda equation and these calculated values was further used to estimate the free energy change of the interaction from the fluorescence data. These results from the absorption and fluorescence spectra of pABA well explained that the nature of force and location of probe in ionic micelles and non-ionic micelles at different pHs.

Published in	Science Journal of Analytical Chemistry (Volume 9, Issue 3)
DOI	10.11648/j.sjac.20210903.12
Page(s)	68-76
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

p-Aminobenzoic Acid, Ionic and Non-ionic Micelles, Binding Site

References

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APA Style

Albert Antony Muthu Prabhu, Narayanasamy Rajendiran, Kasi Sathiyaseelan. (2021). Equilibrium Constant, Concentrations Study of p-Aminobenzoic Acid in Anionic, Cationic and Non-ionic Surfactants. Science Journal of Analytical Chemistry, 9(3), 68-76. https://doi.org/10.11648/j.sjac.20210903.12

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ACS Style

Albert Antony Muthu Prabhu; Narayanasamy Rajendiran; Kasi Sathiyaseelan. Equilibrium Constant, Concentrations Study of p-Aminobenzoic Acid in Anionic, Cationic and Non-ionic Surfactants. Sci. J. Anal. Chem. 2021, 9(3), 68-76. doi: 10.11648/j.sjac.20210903.12

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AMA Style

Albert Antony Muthu Prabhu, Narayanasamy Rajendiran, Kasi Sathiyaseelan. Equilibrium Constant, Concentrations Study of p-Aminobenzoic Acid in Anionic, Cationic and Non-ionic Surfactants. Sci J Anal Chem. 2021;9(3):68-76. doi: 10.11648/j.sjac.20210903.12

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@article{10.11648/j.sjac.20210903.12,
  author = {Albert Antony Muthu Prabhu and Narayanasamy Rajendiran and Kasi Sathiyaseelan},
  title = {Equilibrium Constant, Concentrations Study of p-Aminobenzoic Acid in Anionic, Cationic and Non-ionic Surfactants},
  journal = {Science Journal of Analytical Chemistry},
  volume = {9},
  number = {3},
  pages = {68-76},
  doi = {10.11648/j.sjac.20210903.12},
  url = {https://doi.org/10.11648/j.sjac.20210903.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjac.20210903.12},
  abstract = {p-aminobenzoic acid (pABA) was used as a probe to study the equilibrium constant in ground and excited state and concentrations of anionic surfactant, cationic surfactant and non-ionic surfactant. The absorption and fluorescence spectral characteristics of pABA were reported in aqueous micellar environments (SDS, CTAB and TW 80) at different pHs. The neutral and monoanion form of pABA is present at both pHs 3 and 7 respectively. The blue shifted fluorescence maximum was accompanied by a great raise in intensity at pH 3 whereas at pH 7 the emission intensity a little increase with increasing micelles concentration. In the acidic medium, the CMC value is increased when compared to neutral solution. The strength of interaction between pABA-micelles at both pHs was estimated using Hirose - Sepulveda equation and these calculated values was further used to estimate the free energy change of the interaction from the fluorescence data. These results from the absorption and fluorescence spectra of pABA well explained that the nature of force and location of probe in ionic micelles and non-ionic micelles at different pHs.},
 year = {2021}
}

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TY  - JOUR
T1  - Equilibrium Constant, Concentrations Study of p-Aminobenzoic Acid in Anionic, Cationic and Non-ionic Surfactants
AU  - Albert Antony Muthu Prabhu
AU  - Narayanasamy Rajendiran
AU  - Kasi Sathiyaseelan
Y1  - 2021/10/12
PY  - 2021
N1  - https://doi.org/10.11648/j.sjac.20210903.12
DO  - 10.11648/j.sjac.20210903.12
T2  - Science Journal of Analytical Chemistry
JF  - Science Journal of Analytical Chemistry
JO  - Science Journal of Analytical Chemistry
SP  - 68
EP  - 76
PB  - Science Publishing Group
SN  - 2376-8053
UR  - https://doi.org/10.11648/j.sjac.20210903.12
AB  - p-aminobenzoic acid (pABA) was used as a probe to study the equilibrium constant in ground and excited state and concentrations of anionic surfactant, cationic surfactant and non-ionic surfactant. The absorption and fluorescence spectral characteristics of pABA were reported in aqueous micellar environments (SDS, CTAB and TW 80) at different pHs. The neutral and monoanion form of pABA is present at both pHs 3 and 7 respectively. The blue shifted fluorescence maximum was accompanied by a great raise in intensity at pH 3 whereas at pH 7 the emission intensity a little increase with increasing micelles concentration. In the acidic medium, the CMC value is increased when compared to neutral solution. The strength of interaction between pABA-micelles at both pHs was estimated using Hirose - Sepulveda equation and these calculated values was further used to estimate the free energy change of the interaction from the fluorescence data. These results from the absorption and fluorescence spectra of pABA well explained that the nature of force and location of probe in ionic micelles and non-ionic micelles at different pHs.
VL  - 9
IS  - 3
ER  -

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Author Information

Albert Antony Muthu Prabhu

Department of PG Chemistry, Aditanar College of Arts and Science, Tiruchendur, India
Narayanasamy Rajendiran

Department of Chemistry, Annamalai University, Annamalainagar, India
Kasi Sathiyaseelan

Department of PG Chemistry, Aditanar College of Arts and Science, Tiruchendur, India

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APA Style

Albert Antony Muthu Prabhu, Narayanasamy Rajendiran, Kasi Sathiyaseelan. (2021). Equilibrium Constant, Concentrations Study of p-Aminobenzoic Acid in Anionic, Cationic and Non-ionic Surfactants. Science Journal of Analytical Chemistry, 9(3), 68-76. https://doi.org/10.11648/j.sjac.20210903.12

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ACS Style

Albert Antony Muthu Prabhu; Narayanasamy Rajendiran; Kasi Sathiyaseelan. Equilibrium Constant, Concentrations Study of p-Aminobenzoic Acid in Anionic, Cationic and Non-ionic Surfactants. Sci. J. Anal. Chem. 2021, 9(3), 68-76. doi: 10.11648/j.sjac.20210903.12

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AMA Style

Albert Antony Muthu Prabhu, Narayanasamy Rajendiran, Kasi Sathiyaseelan. Equilibrium Constant, Concentrations Study of p-Aminobenzoic Acid in Anionic, Cationic and Non-ionic Surfactants. Sci J Anal Chem. 2021;9(3):68-76. doi: 10.11648/j.sjac.20210903.12

Copy | Download

@article{10.11648/j.sjac.20210903.12,
  author = {Albert Antony Muthu Prabhu and Narayanasamy Rajendiran and Kasi Sathiyaseelan},
  title = {Equilibrium Constant, Concentrations Study of p-Aminobenzoic Acid in Anionic, Cationic and Non-ionic Surfactants},
  journal = {Science Journal of Analytical Chemistry},
  volume = {9},
  number = {3},
  pages = {68-76},
  doi = {10.11648/j.sjac.20210903.12},
  url = {https://doi.org/10.11648/j.sjac.20210903.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjac.20210903.12},
  abstract = {p-aminobenzoic acid (pABA) was used as a probe to study the equilibrium constant in ground and excited state and concentrations of anionic surfactant, cationic surfactant and non-ionic surfactant. The absorption and fluorescence spectral characteristics of pABA were reported in aqueous micellar environments (SDS, CTAB and TW 80) at different pHs. The neutral and monoanion form of pABA is present at both pHs 3 and 7 respectively. The blue shifted fluorescence maximum was accompanied by a great raise in intensity at pH 3 whereas at pH 7 the emission intensity a little increase with increasing micelles concentration. In the acidic medium, the CMC value is increased when compared to neutral solution. The strength of interaction between pABA-micelles at both pHs was estimated using Hirose - Sepulveda equation and these calculated values was further used to estimate the free energy change of the interaction from the fluorescence data. These results from the absorption and fluorescence spectra of pABA well explained that the nature of force and location of probe in ionic micelles and non-ionic micelles at different pHs.},
 year = {2021}
}

Copy | Download

TY  - JOUR
T1  - Equilibrium Constant, Concentrations Study of p-Aminobenzoic Acid in Anionic, Cationic and Non-ionic Surfactants
AU  - Albert Antony Muthu Prabhu
AU  - Narayanasamy Rajendiran
AU  - Kasi Sathiyaseelan
Y1  - 2021/10/12
PY  - 2021
N1  - https://doi.org/10.11648/j.sjac.20210903.12
DO  - 10.11648/j.sjac.20210903.12
T2  - Science Journal of Analytical Chemistry
JF  - Science Journal of Analytical Chemistry
JO  - Science Journal of Analytical Chemistry
SP  - 68
EP  - 76
PB  - Science Publishing Group
SN  - 2376-8053
UR  - https://doi.org/10.11648/j.sjac.20210903.12
AB  - p-aminobenzoic acid (pABA) was used as a probe to study the equilibrium constant in ground and excited state and concentrations of anionic surfactant, cationic surfactant and non-ionic surfactant. The absorption and fluorescence spectral characteristics of pABA were reported in aqueous micellar environments (SDS, CTAB and TW 80) at different pHs. The neutral and monoanion form of pABA is present at both pHs 3 and 7 respectively. The blue shifted fluorescence maximum was accompanied by a great raise in intensity at pH 3 whereas at pH 7 the emission intensity a little increase with increasing micelles concentration. In the acidic medium, the CMC value is increased when compared to neutral solution. The strength of interaction between pABA-micelles at both pHs was estimated using Hirose - Sepulveda equation and these calculated values was further used to estimate the free energy change of the interaction from the fluorescence data. These results from the absorption and fluorescence spectra of pABA well explained that the nature of force and location of probe in ionic micelles and non-ionic micelles at different pHs.
VL  - 9
IS  - 3
ER  -

Copy | Download