Rapid and selective determination of osmium(IV) by UV-visible spectrophotometry usingo-methylphenyl thiourea as a chromogenic chelating ligand: sequential separation of osmium(IV), rhodium(III) and platinum(IV)

Solvent Extraction, Spectrophotometric Determination of Selenium (Iv) at Microgram Level Using O-Methylphenyl Thiourea as a Sensitive Reagent: Analysis of Pharmaceuticals, Synthetic Mixtures and Real Samples

“…In earlier study OMPT has been studied in our laboratory for selective extraction spectrophotometric determination of platinum group metals. [46][47][48][49][50][51] Proposed method has merits compared to reported spectrophotometric …”