Evaluation of solution-cathode glow discharge atomic emission spectrometry for the analysis of nanoparticle containing solutions

Concomitant ion matrix effects in SCGD-OES enhanced with formic acid

“…6 Given the advantages of low cost, small size and simple operation, the SCGD was applied in various contexts and for different samples, such as seawater, 3 waste water, 4,7-9 saline solutions, 10 brine, 11 ores 10,12 or stream sediments. 9,13 Moreover, analysis of nanoparticles by SCGD was recently reported, 14 as well as its application to analyze large biomolecules by coupling the SCGD to mass spectrometric detection. 15 The plasma-liquid interface in a running SCGD shows a complex behavior due to its rich chemical reactivity and the presence of different physical phenomena that, altogether, contribute to the transference of dissolved analyte ions in solution towards the plasma phase to be excited.…”

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

“…This technique was successfully used to detect trace elements in tap, mineral, river, ground or waste water, [11][12][13][14] and it was also recently evaluated for nanoparticle analysis. 15 Additionally, SCGD has shown promising detectability in high salinity sample analysis. For instance, hydride generation (HG) was coupled with SCGD-OES for trace Pb analysis in seawater.…”

“…Ni, Zn or Cd), 10,21,27 while interfering OH or N 2 emission spreads along the whole plasma column, with a partial maximum close to the cathode and a more important one close to the anode. 15 Consequently, as Pohl et al covered in a recent review, changing the interelectrode gap distance can change the signal-to-background and signal-to-noise ratios. 2 Concerning ow rates, previous reports showed non dened behaviors of the elemental emission signals at different ow rates in the range between 2 and 4 mL min À1 .…”

A novel solution cathode glow discharge geometry for improved coupling to optical emission spectrometry

“…The SCGD has been used to quantitate elemental composition at trace and ultra-trace levels in a wide variety of sample types including silica colloids, 9 nanoparticles, 10 bottled water, 11 wastewaters, 12 honey, 13 and wine. 14 It has also found use with hydride generation, 15 water remediation, 16,17 and nanoparticle synthesis.…”