EXTRACTION-ABSORBTIOMETRIC DETERMINATION OF MICROGRAM AMOUNTS OF RHODIUM (III) OF THIAZINE ROW THIONINE YELLOW. Proc. YSU B: Chem. Biol. Sci. 2023, 42 (2 (216), 80-84. https://doi.org/10.46991/PYSUB.2008.42.2.080.