Determination of gallium and indium by solution cathode glow discharge as an excitation source for atomic emission spectrometry

The application of tetramethylammonium hydroxide for generating atmospheric pressure glow discharge in contact with alkalized flowing liquid cathode solutions – evaluation of the analytical performance

“…In the case of the effect of the discharge current and the TMAH concentration, the obtained results are in good agreement with the literature data, obtained for FLC-APGD generated in contact with acidied solutions. 8,21,26,[42][43][44] Regarding the solution ow rate, the outcomes obtained by other researchers are quite ambiguous; some of them observed that the signal intensity (or SBR) increased with the increasing solution ow rate, 17,20,45,46 while others report a signal drop with the increasing solution ow rate. 19,21,47 An initial increase of the signal intensity followed by its subsequent drop was reported as well.…”

Atomic spectrometry update – a review of advances in environmental analysis

“…The development of low-power discharges for water analysis continues to be of interest and useful LODs are now being achieved. A solution cathode-glow-discharge was used 85 as an excitation source for the determination of Ga and In in water samples. Whereas few interferences were present in the determination of In, even when matrix components were present in a 20-fold excess over the analyte concentration, the determination of Ga suffered severely from interferences.…”

Critical evaluation of SCGD-OES analytical performance in the presence of NaCl

“…Matrix effects observed in the SCGD-OES analytical performance, due to concomitant ions dissolved in water samples, were also investigated. 18,25,28,36,40–42 From these previous studies, it was concluded that good stability in the sensitivity can be achieved for many elements in the presence of foreign ions, up to concentrations of 200–300 mg L −1 . Nevertheless, over that concentration level ( e.g.…”