Reduktometrische Bestimmung von Anthrachinon mittels Vanadium(II)-sulfat

Organic Polarography

“…The polarographic method has been used to determine 1,4-naphthoquinone and maleic anhydride in phthalic anhydride (228) and hydroquinone in various monomers (119), to follow the effect of light on 2-methyl-l,4-naphthoquinone (9) and the 2-methyl-1,4-naphthoquinone-sodium bisulfite adduct (8), to study complex formation between quinalizarin and various metals (46), and to show that the vapor phase oxidation of phenanthrene gives possibly a monohydroxyphenanthraquinone (149). The determination of ar thraquinone by the polarographic technique is less accurate than the potentiorr etric method using titration with vanadium sulfate (275).…”

Amperometric titrations

“…Ureaand carbamate-pesticides have been determined by hydrolysis to, and titration of, amino compounds (137). The titration of sulfanilic acid (116,160) and of various other primary aromatic amines (160) has been examined. Benzenesulfinic acid has been titrated both amperometrically and biamperometrically (162).…”