Author(s): Job Herman Berkhout, Aswatha Ram H.N.

Email(s): aswatharam@gmail.com

DOI: 10.52711/0974-360X.2024.00159   

Address: Job Herman Berkhout1, Aswatha Ram H.N.2*
1Faculty of Science, Radboud University, Nijmegen, the Netherlands.
2Department of Pharmacognosy, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal-576104, India.
*Corresponding Author

Published In:   Volume - 17,      Issue - 3,     Year - 2024


ABSTRACT:
The ionization state (pKa) of a compound influences its absorption, distribution, metabolism and excretion. Therefore, proper knowledge of the pKa is crucial in understanding the behavior of a compound behavior inside the body. In this research paper, we validate the pKa of muscarinic acetylcholine receptor antagonist atropine sulfate using Uv-Vis spectroscopy, to validate the use of this method and to re-evaluate the of atropine sulfate. The pKa value from absorption measurements is first estimated using 3rd degree polynomial and then precisely calculated according to the Albert-Sergeant method. We established that the pKa value of Atropine sulfate is 9.94±0.050 which is comparable to the values present in the literature.


Cite this article:
Job Herman Berkhout, Aswatha Ram H.N.. Research Journal of Pharmacy and Technology. 2024; 17(3):1029-2. doi: 10.52711/0974-360X.2024.00159

Cite(Electronic):
Job Herman Berkhout, Aswatha Ram H.N.. Research Journal of Pharmacy and Technology. 2024; 17(3):1029-2. doi: 10.52711/0974-360X.2024.00159   Available on: https://rjptonline.org/AbstractView.aspx?PID=2024-17-3-10


REFERENCES:
1.    Wells JI. Pharmaceutical preformulation: the physicochemical properties of drug substances. Ellis Horwood; 1988.
2.    Dardonville C. Automated techniques in pKa determination: Low, medium and high-throughput screening methods. Drug Discovery Today Technologies. 2018; 27: 49-58: https://doi.org/10.1016/j.ddtec.2018.04.001
3.    Manallack DT. The p K a distribution of drugs: application to drug discovery. Perspectives in Medicinal Chemistry. 2007; 1: 25-38.
4.    Sjögren E, Abrahamsson B, Augustijns P, Becker D, Bolger MB, Brewster M, Brouwers J, Flanagan T, Harwood M, Heinen C, Holm R. In vivo methods for drug absorption–comparative physiologies, model selection, correlations with in vitro methods (IVIVC), and applications for formulation/API/excipient characterization including food effects. European Journal of Pharmaceutical Sciences. 2014; 57: 99-151. https://doi.org/10.1016/j.ejps.2014.02.010
5.    NCBI and Pubchem. Atropine sulfate. 03 2019. [Online]. Available: https://pubchem.ncbi.nlm.nih.gov/compound/Atropine-sulfate.
6.    Jin LJ, Wang Y, Xu R, Go ML, Lee HK, Li SF. Chiral resolution of atropine, homatropine and eight synthetic tropinyl and piperidinyl esters by capillary zone electrophoresis with cyclodextrin additives. Electrophoresis: An International Journal. 1999; 20(1): 198-203. https://doi.org/10.1002/(SICI)1522-2683(19990101)20:1%3C198::AID-ELPS198%3E3.0.CO;2-7
7.    Merck I. The Merck Index. 8th edn. Merck and Co. Inc.: Rahway NJ. 1968.
8.    Albert A, Serjeant EP. Ionization constants of acids and bases: a laboratory manual. Methuen. 1962.
9.    Kumar GP, Kumar SK. Drug Dissolution Enhancement by Salt Formation: Current Prospects. Research Journal of Pharmaceutical Dosage Forms and Technology. 2011; 3(6): 251-259.
10.    Amrutkar RD, Shahare HV, Rakibe VD. Determination of Dissociation Constant (PKA) of Enalapril maleate by Electromagnetic Instrument Based Method. Asian Journal of Pharmaceutical Analysis. 2018; 8(4): 215-219.

Recomonded Articles:

Research Journal of Pharmacy and Technology (RJPT) is an international, peer-reviewed, multidisciplinary journal.... Read more >>>

RNI: CHHENG00387/33/1/2008-TC                     
DOI: 10.5958/0974-360X 

1.3
2021CiteScore
 
56th percentile
Powered by  Scopus


SCImago Journal & Country Rank

Journal Policies & Information


Recent Articles




Tags


Not Available