This title appears in the Scientific Report :
2003
Please use the identifier:
http://hdl.handle.net/2128/2799 in citations.
Please use the identifier: http://hdl.handle.net/2128/2245 in citations.
Please use the identifier: http://dx.doi.org/10.1039/b209047n in citations.
Reduction of molecular ion interferences with hexapole collision cell in direct injection nebulization-inductively coupled plasma mass spectrometry
Reduction of molecular ion interferences with hexapole collision cell in direct injection nebulization-inductively coupled plasma mass spectrometry
A hexapole collision cell was investigated for significant reductions of interferences by molecular ions in inductively coupled plasma mass spectrometry (ICPMS) using a direct injection high efficiency nebulizer (DIHEN). Collision induced reactions with hydrogen reduced isobaric interferences while...
Saved in:
Personal Name(s): | O'Brien, S. E. |
---|---|
Acon, B. W. / Boulyga, S. F. / Becker, J. S. / Dietze, H.-J. / Montaser, A. | |
Contributing Institute: |
Zentralabteilung für Chemische Analysen; ZCH |
Published in: | Journal of analytical atomic spectrometry, 18 (2003) 3, S. 230 - 238 |
Imprint: |
Cambridge
ChemSoc
2003
|
Physical Description: |
230 - 238 |
DOI: |
10.1039/b209047n |
Document Type: |
Journal Article |
Research Program: |
Materialien, Prozesse und Bauelemente für die Mikro- und Nanoelektronik |
Series Title: |
Journal of Analytical Atomic Spectrometry
18 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/2245 in citations.
Please use the identifier: http://dx.doi.org/10.1039/b209047n in citations.
A hexapole collision cell was investigated for significant reductions of interferences by molecular ions in inductively coupled plasma mass spectrometry (ICPMS) using a direct injection high efficiency nebulizer (DIHEN). Collision induced reactions with hydrogen reduced isobaric interferences while the addition of helium as a collision gas enhanced analyte ion transmission through collisional focusing. Improved figures of merit were obtained for elements (Ca, Fe, Cr, As, Se) that are typically difficult to analyze with conventional quadrupole instruments. Sensitivities achieved with the DIHEN were higher (by factors ranging from 2 to 9) than those observed with a micronebulizer-spray chamber arrangement. Precision and detection limits were similar to or slightly improved over values obtained using the micronebulizer-spray chamber arrangement. The technique was successfully applied to the determination of Fe, Cr, Co, Cu, Pb, Al, Mn, Zn, Ag, and Sr on silicon wafer surfaces at a concentration range of (0.49-6.5) x 10(9) atoms cm(-2), sampled by a 100 muL drop of H2O-H2O2-HF, as well as for the determination of Cr in DNA. |