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Extraction and Spectrophotometric Determination of Niobium(V) with 3-Hydroxy-2-Methyl-1-Phenyl-4-Pyridone

The extraction of Niobium(V) by 3-Hydroxy-2-Methyl-1-Phenyl-4-Pyridone(HX) dissolved in chloroform has been studied by radiometric and spectrophotometric methods. The extracted niobium(V) complex in chloroform exhibits maximum absorbance at 350 nm and niobium(V) can be determined spectrophotpmetrically in the organic phase. The molar absorptivity of method is 9500 dm3 mol-1 cm-1.

extraction; niobium(V); 4-pyridone derivatives; spectrophotometry

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