Standardless Semi-quantitative Elemental Analysis of Steel Using Laser Ablation Time-of-flight Mass Spectrometry

Chem. J. Chinese Universities

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Standardless Semi-quantitative Elemental Analysis of Steel Using Laser Ablation Time-of-flight Mass Spectrometry

HE Jian^1*, HUANG Rong-Fu², YU Quan², HANG Wei^1,2*, HUANG Ben-Li²

1. Department of Mechanical & Electrical Engineering, College of Physics and Mechanical & Electrical Engineering,
2. Department of Chemistry, College of Chemistry and Chemical Engineering, and The Key Laboratory of Analytical Sciences of the Ministry of Education, Xiamen University, Xiamen 361005, China

Received:2008-08-04 Revised:1900-01-01 Online:2009-01-10 Published:2009-01-10
Contact: HE Jian, HANG Wei

Abstract

Abstract: A small high irradiance laser ablation and ionization time-of-flight mass spectrometer with orthogonal sample introduction was described. Nearly uniform relative sensitivity coefficients as well as satisfactory resolving power(~2200) were achieved for most of metal elements. Fairly good signal stability was obtained by automated step moving of the sample stage in short time intervals. Interferences of multiply charged ions and polyatomic ions were nearly eliminated in the spectrum by utilizing helium as the buffer gas in the ion source, which resulted in a relative clean background. Standardless semi-quantitative analysis of steel was realized and the limits of detection are about 10^-6 g/g for most of metal elements.

Key words: Laser ablation, Time-of-flight mass spectrometry, Standardless semi-quantitative elemental analysis, Steel

CLC Number:

O657

TrendMD:

HE Jian^1*, HUANG Rong-Fu², YU Quan², HANG Wei^1,2*, HUANG Ben-Li². Standardless Semi-quantitative Elemental Analysis of Steel Using Laser Ablation Time-of-flight Mass Spectrometry[J]. Chem. J. Chinese Universities, doi: .

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Standardless Semi-quantitative Elemental Analysis of Steel Using Laser Ablation Time-of-flight Mass Spectrometry

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