DETERMINATION OF VANADIUM IN VEGETABLE MATTER BY FLAME ATOMIC-ABSORPTION SPECTROMETRY
Küçük Resim Yok
Tarih
1992
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Royal Soc Chemistry
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A method is described for the preconcentration of trace amounts of vanadium(v) from biological samples and its determination by flame atomic absorption spectrometry. It was found that the optimum acidity is in the pH range 2.9-4.9. An increase in the interferences from Al, Mg and Ca is observed. Elimination of these problems was achieved by adding an enrichment step to the analytical scheme. Linear calibration was obtained over the concentration range 10-120 ppb. The relative standard deviation was found to be 3% for a vanadium concentration of 100 ppb. The proposed enrichment method was applied to the determination of vanadium in foods and plants. The preconcentration system enables a 300-fold enrichment of vanadium(v) to be achieved, and therefore its determination at ppb levels. The proposed method tolerates the presence of a large number of cations that are usually found with vanadium in plant and animal tissues.
Açıklama
27TH INTERNATIONAL COLLOQUIUM ON SPECTROSCOPY ( 27TH CSI ) -- JUN 09-14, 1991 -- BERGEN, NORWAY
Anahtar Kelimeler
VANADIUM(V) DETERMINATION, PRECONCENTRATION ON ACTIVATED CARBON, 8-HYDROXYQUINOLINE, ATOMIC ABSORPTION SPECTROMETRY, VEGETABLE MATTER
Kaynak
Journal of Analytical Atomic Spectrometry
WoS Q Değeri
N/A
Scopus Q Değeri
N/A
Cilt
7
Sayı
2
