Abdulla M. Sulaiman and Khalida M. Omar 2022. A Spectrophotometric Method for the Quantitative Estimation of Trimethoprim via Oxidation and Decolonization of the Indigo Carmine. African Journal of Advanced Pure and Applied Sciences . 1, 4 (Oct. 2022), 80–88. DOI:https://doi.org/10.65418/ajapas.v1i4.142.