Show simple item record

dc.creatorStoiljković, Milovan
dc.creatorHolclajtner-Antunović, Ivanka D.
dc.creatorPavlović, Mirjana S.
dc.creatorRadak, Bojan
dc.identifier.issn0352-5139 (print)
dc.description.abstractOptimization of the conditions for the analytical application of a vertical argon stabilized DC are plasma, seeded by an easily ionizable element, potassium, is described. Such a plasma is used as an excitation source for the direct determination of Ca, Rb and Li. A high potassium chloride content in the solutions (of the order of 1%), significantly lowers the excitation temperature, which causes a suppression of the high energy processes (and of the corresponding spectral lines). The signal to background ratio of the moderate to low excitation potential lines increased by 10-100. Calibration was carried out under optimal conditions, and detection limits in the range 23.5 mu g/dm(3) to 0.055 mu g/dm(3) were reached, with linearity across 4-6 orders of magnitude. The method was successfully applied for the direct determination of Li, Rb and Cs in mineral water samples that, for comparison, were also analyzed by flame emission spectrometry. Good agreement between the two methods was achieved. The accuracy of the method was verified by the international reference standard SRM 1643d.en
dc.sourceJournal of the Serbian Chemical Societyen
dc.subjectstabilized DC arc plasmaen
dc.subjecteasily ionizable elements (EIE)en
dc.subjectatomic emission spectrometryen
dc.subjectrubidium and lithium determinationen
dc.titleDetermination of cesium, rubidium and lithium by stabilized DC arc plasma emission spectrometryen
dcterms.abstractХолцлајтнер-Aртуновиц, И; Павловиц, МС; Стоиљковић Милован; Радак, Бојан;

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record