2020. Charge Transfer Spectrophotometric Determination of Metronidazole in Pharmaceutical Formulations by Normal and Reverse Flow Injection Analysis Coupled with Solid-Phase Reactor Containing Immobilized FePO4. Iraqi Journal of Science. 61, 7 (Jul. 2020), 1541–1554. DOI:https://doi.org/10.24996/ijs.2020.61.7.1.