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Adebayo_ Comlan Djanman_Thesis.pdf (2.27 MB)

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A Spectrophotometric Determination of Strontium Complexation with Methylthymol Blue

Djanman, Adebayo Comlan
http://rave.ohiolink.edu/etdc/view?acc_num=wright1737039000899285

Abstract Details

2024, Master of Science (MS), Wright State University, Chemistry.
This study examines the complexation behavior of methylthymol blue (MTB) with strontium, particularly focusing on its application in addressing environmental concerns related to radiotoxic 90Sr. Using spectrophotometric techniques, the binding interactions were analyzed at pH = 7.50, 9.60, and 12.20. Results indicate that MTB forms a 1:1 complex with strontium at pH = 7.50, while at pH = 9.60 and 12.20 were assumed to influence complexation due to changes in ligand deprotonation and electrostatic interactions. Equilibrium constants (K1) = 22 (± 2) and molar absorptivities, ε1 = 6.3 x 10^3 (± 0.0008) L·mol⁻¹·cm⁻¹, and ε2 = 9.73 x (± 0.2)10^3 L·mol⁻¹·cm⁻¹ were determined using Beer’s law, alpha fraction plots, and 1:1 Single K model fitting was done in Igor Pro 9 software. These findings highlight MTB’s potential for environmental remediation of strontium in aqueous solution, with future research suggested to optimize MTB effectiveness as metal ion indicator.
Steven Higgins, Ph.D. (Advisor)
Suzanne Lunsford, Ph.D. (Committee Member)
Eric Fossum, Ph.D. (Committee Member)
73 p.
Analytical Chemistry; Chemistry
Spectrophotometric; Methylthymol Blue; Igor Pro 9; Titration; Equilibrium constants; molar absorptivities; MTB; Sr; Strontium; complexation; Beer’s law; alpha fraction

Recommended Citations

Citations

  • Djanman, A. C. (2024). A Spectrophotometric Determination of Strontium Complexation with Methylthymol Blue [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1737039000899285

    APA Style (7th edition)

  • Djanman, Adebayo. A Spectrophotometric Determination of Strontium Complexation with Methylthymol Blue. 2024. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1737039000899285.

    MLA Style (8th edition)

  • Djanman, Adebayo. "A Spectrophotometric Determination of Strontium Complexation with Methylthymol Blue." Master's thesis, Wright State University, 2024. http://rave.ohiolink.edu/etdc/view?acc_num=wright1737039000899285

    Chicago Manual of Style (17th edition)

wright1737039000899285
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© 2024, all rights reserved.
This open access ETD is published by Wright State University and OhioLINK.
Release 3.2.12