Personal profile
Personal profile
I am an educator, analytical chemist, environmentalist, and laboratory manager with a strong background in computational chemistry. My academic journey began at the University of Nairobi, Kenya, where I earned my B.Sc. in Chemistry in 1989. I then pursued my M.S. in Environmental Analytical Chemistry at Hampton University, VA, in 2000. My Ph.D. in Analytical Chemistry was completed at The Ohio State University, OH, in 2006.
Throughout my career, I have held various positions in academia, including serving as a Professor of Chemistry & Biochemistry at Stephen F. Austin State University since 2016. Prior to that, I was an Associate Professor of Chemistry at the same institution from 2012 to 2016, and an Assistant Professor of Chemistry from 2006 to 2012.
My research interests span across analytical, environmental, computational, and physical-organic chemistry. I have conducted extensive studies on plant bioremediation, metal speciation in composted wastewater sludges, and the synthesis and characterization of nitrated Polycyclic Aromatic Hydrocarbons (PAHs).
I have also been involved in various research funding activities, both internal and external, and have received several fellowships, honors, and awards throughout my career. As a mentor, I have advised and guided numerous undergraduate and graduate students in their research projects. My mission is to continue contributing to the field of chemistry through education, research, and laboratory management.
Related documents
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Biofilm-Based Biomonitoring of Treated Wastewater Using Bacillus thuringiensis: Toward Sustainable Water Reuse
Sengupta, B., Ogunlewe, O., Friedfeld, R., Bess-Grunewald, C., Baker, P. & Onchoke, K., Aug 2025, In: Sustainability (Switzerland). 17, 16, 7272.Research output: Contribution to journal › Article › peer-review
Open Access -
Simultaneous quantification of carbaryl, chlorpyrifos, and paraquat in a municipal wastewater treatment plant by SPE-RP-HPLC–PDA-FD method
Onchoke, K. K., Hamilton, J. S., Broom, A. M. & Lopez, G., Mar 2025, In: Environmental Monitoring and Assessment. 197, 3, 270.Research output: Contribution to journal › Article › peer-review
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The effect of biosolid/soil composition on growth and uptake of zinc (Zn) by broccoli (Brassica oleracea var.) under greenhouse conditions
Onchoke, K. K., Horalan Jnr, B. P. & Friedfeld, R. B., Apr 10 2025, In: Environmental Science: Advances. 4, 6, p. 912-920 9 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Influence of perlite/biosolid composition on growth and uptake of Cd and Mn by radish (Raphanus sativus L.) under greenhouse conditions
Onchoke, K. K. & Fateru, O. O., Jan 2024, In: Applied Water Science. 14, 1, 7.Research output: Contribution to journal › Article › peer-review
Open Access -
Detection of Carbamazepine, Diclofenac, and Ketoprofen via a SPE-HPLC-PDA Method in a Municipal Wastewater Treatment Plant in East Texas, USA
Onchoke, K. K., Lopez, G. & Broom, A. M., 2023, In: Analytical Chemistry Letters. 13, 2, p. 127-140 14 p.Research output: Contribution to journal › Article › peer-review
Open Access