Spatial Investigation of Analytes at the Sampling Cone of an ICP-MS

MA Hai-bin; ZHANG Peng

doi:10.7538/zpxb.youxian.2015.0031

Journal of Chinese Mass Spectrometry Society > 2016 > 37(1): 82-87. > DOI: 10.7538/zpxb.youxian.2015.0031 CSTR: 32365.14.zpxb.youxian.2015.0031

MA Hai-bin, ZHANG Peng. Spatial Investigation of Analytes at the Sampling Cone of an ICP-MS[J]. Journal of Chinese Mass Spectrometry Society, 2016, 37(1): 82-87. DOI: 10.7538/zpxb.youxian.2015.0031

Citation:

MA Hai-bin, ZHANG Peng. Spatial Investigation of Analytes at the Sampling Cone of an ICP-MS[J]. Journal of Chinese Mass Spectrometry Society, 2016, 37(1): 82-87. DOI: 10.7538/zpxb.youxian.2015.0031

Citation:

MA Hai-bin, ZHANG Peng. Spatial Investigation of Analytes at the Sampling Cone of an ICP-MS[J]. Journal of Chinese Mass Spectrometry Society, 2016, 37(1): 82-87. DOI: 10.7538/zpxb.youxian.2015.0031

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Spatial Investigation of Analytes at the Sampling Cone of an ICP-MS

MA Hai-bin¹,
ZHANG Peng²

1.
College of Chemistry, Chemical & Environmental Engineering, Weifang University, Weifang 261061, China
2.
College of Computer Engineering, Weifang University, Weifang 261061, China

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Abstract

To improve the sensitivity of an inductively coupled plasma mass spectrometer (ICP-MS), the analytes ions must be transmitted from the plasma through the interfacial region as efficient as possible. Understanding transport behaviors of analytes from the plasma through the sampling cone require knowledge of analytes spatial distributions at the tip of the sampling cone. Relying on laser induced fluorescence technique, the temperature variations of the plasma and spatial distribution of barium at the tip of the sampling cone of an ICP under a seris of experimental conditions were investigated. The result shows that ICP incident power and nebulizer flow have significant impact on the atomization and ionization of analytes. However, higher ICP incident power does not mean higher efficiency of analytes reaching the sampling cone. The results can provide some guides to design improvement of a commercial ICP-MS.
- inductively coupled plasma mass spectrometer (ICP-MS),
- elemental analysis,
- sampling cone,
- spatial distribution

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