INTERFERENCES IN THE DETERMINATION OF LITHIUM BY FLAME ATOMIC-EMISSION SPECTROMETRY WITH PLATINUM-LOOP ATOMIZER
Küçük Resim Yok
Tarih
1994
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Royal Soc Chemistry
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Although flame atomic emission spectrometry (AES) is the most popular method for the determination of Li, the method is subject to interference from alkaline and alkaline earth elements. The effects of CaOH and SrO emission bands are particularly severe. The use of a Pt-loop atomizer was found to eliminate interference from Ca and Sr, as salts of these elements remained as solid residues on the loop material. High contents of F-, Cl-, SO42- and PO43- were found to reduce the U signal, this was largely due to loss of LiCl in the case of Cl-, in the case of F-, SO42- and PO43-, the reduction in the Li signal was due to lithium oxide formation. The accuracy of the Pt-loop technique was shown to be satisfactory in matrices of high Ca and Sr contents. The detection limit obtained with the Pt-loop was at least one order of magnitude better than that of conventional AES. The technique was applied in the determination of Li in several sample types.
Açıklama
Anahtar Kelimeler
INTERFERENCES, LITHIUM DETERMINATION, FLAME ATOMIC EMISSION SPECTROMETRY, PLATINUM-LOOP ATOMIZER
Kaynak
Journal of Analytical Atomic Spectrometry
WoS Q Değeri
N/A
Scopus Q Değeri
N/A
Cilt
9
Sayı
7
