1. Antonovich VP, Pisareva EN, Grekova IM, Yakovleva TP (1976) Spectrophotometric characteristics, acid-base properties, and π-electronic structure of pyrogallol red and brompyrogallol red. J Anal Chem USSR 31:1691–1697
2. Bahr GF (1955) Continued studies about the fixation with osmium tetroxide, Electron stains IV. Exp Cell Res 9:277–285
3. Dudareva GN, Dudarev VI, Morgen EA, Vlasov NA (1977) UV and IR spectroscopic examination of complex formation between vanadium(V) and triphenylmethane dyes. J Anal Chem USSR 32:980–983
4. Esriche JM, Cabeza AS, Guardia Cirugeda M de la, Reig FB (1983) Spectrophotometric determination of vanadium by oxidation of pyrogallol red. Analyst 108:1402–1408
5. Escriche JM, Cabeza AS, Estelles ML (1986) Aplicationanalyticas del rojo de pirogalol. Quimica Analitica 5:229–244