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Extractive spectrophotometric determination of niobium(V) with promazine hydrochloride

✍ Scribed by Mikołaj Tarasiewicz; Wiesława Misiuk; Helena Puzanowska-Tarasiewicz

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
224 KB
Volume
37
Category
Article
ISSN
0026-265X

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Rhenium (O-20 fig) may be determined as perrhenate spectrophotometrically at 362 nm after its extraction at pH 4 with amiloride hydrochloride into 4-methyl-2-pentanone. The relative standard deviation for 7 determinations of 10 pg of perrhenate is 1.5%. The effects of pH and diverse ions are reporte