Microchip Atmospheric Pressure Photoionization for Analysis of Petroleum by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

被引：28

作者：

Haapala, Markus ^{[2
]}

Purcell, Jerremiah M. ^{[1
]}

Saarela, Ville ^{[4
]}

Franssila, Sami ^{[4
]}

Rodgers, Ryan P. ^{[1
,3
]}

Hendrickson, Christopher L. ^{[1
,3
]}

Kotiaho, Tapio ^{[2
,5
]}

Marshall, Alan G. ^{[1
,3
]}

Kostiainen, Risto ^{[2
]}

机构：

[1] Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA

[2] Univ Helsinki, Fac Pharm, Div Pharmaceut Chem, FI-00014 Helsinki, Finland

[3] Natl High Magnet Field Lab, Ion Cyclotron Resonance Program, Tallahassee, FL 32310 USA

[4] Helsinki Univ Technol, Dept Micro & Nanosci, Microtabricat Grp, FI-02015 Helsinki, Finland

[5] Univ Helsinki, Dept Chem, Analyt Chem Lab, FI-00014 Helsinki, Finland

来源：

ANALYTICAL CHEMISTRY | 2009年 / 81卷 / 07期

关键词：

CRUDE-OIL; LIQUID-CHROMATOGRAPHY; GAS-CHROMATOGRAPHY; IONIZATION; RESOLUTION; FRACTIONS; HYDROCARBONS; DESORPTION; COMPONENTS; MOLECULES;

D O I：

10.1021/ac802427m

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Atmospheric pressure photoionization (APPI) Fourier transform ion cyclotron resonance mass spectrometry (FF-ICR MS) has significantly contributed to the molecular speciation of petroleum. However, a typical APPI source operates at 50 mu L/min flow rate and thus causes a considerable mass load to the mass spectrometer. The recently introduced microchip APPI (mu APPI) operates at much lower flow rates (0.05-10 mu L/min) providing decreased mass load and therefore decreased contamination in analysis of petroleum by FT-ICR MS. In spite of the 25 times lower flow rate, the signal response with mu APPI was only 40% lower than with a conventional APPI source. It was also shown that mu APPI provides very efficient vaporization of higher molecular weight components in petroleum analysis.

引用

页码：2799 / 2803

页数：5

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