Two-Dimensional Separation in Laser Ionization Orthogonal Time-of-Flight Mass Spectrometry

被引：14

作者：

Huang, Rongfu ^{[1
]}

Lin, Yiming ^{[1
]}

Li, Lingfeng ^{[1
]}

Hang, Wei ^{[1
,2
]}

He, Jian ^{[3
]}

Huang, Benli ^{[1
]}

机构：

[1] Xiamen Univ, Coll Chem & Chem Engn, Key Lab Analyt Sci, Xiamen 361005, Peoples R China

[2] Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China

[3] Xiamen Univ, Dept Mech & Elect Engn, Xiamen 361005, Peoples R China

来源：

ANALYTICAL CHEMISTRY | 2010年 / 82卷 / 07期

关键词：

PULSED GLOW-DISCHARGE; ANALYTICAL-CHEMISTRY; ELEMENTAL ANALYSIS; ABLATION; PLASMA; IRRADIANCE; SOLIDS;

D O I：

10.1021/ac902981j

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The capabilities of two-dimensional separation using a high irradiance laser ionization orthogonal time-of-flight mass spectrometer (LI-O-TOFMS) were demonstrated in this paper. Ions were separated via their initial kinetic energy in one dimension and their mass-to-charge ratios in the other dimension. Investigation of the transient ion profiles after laser pulses revealed that the separation of analyte ions from multiply charged ions and gas species ions was achieved. Comparison of mass spectra in the normal accumulation mode and in the two-dimensional separation mode indicated that the relative sensitivity coefficients are stable and close to their true values in the two-dimensional separation mode, especially for trace elements that are prone to interference.

引用

页码：3077 / 3080

页数：4

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