Supersonic jet multiphoton ionization mass spectrometry using nanosecond and femtosecond pulse lasers

被引：19

作者：

Matsumoto, J ^{[1
]}

Lin, CH ^{[1
]}

Imasaka, T ^{[1
]}

机构：

[1] KYUSHU UNIV,FAC ENGN,DEPT CHEM SCI & TECHNOL,HAKOZAKI,FUKUOKA 812,JAPAN

来源：

ANALYTICA CHIMICA ACTA | 1997年 / 343卷 / 1-2期

关键词：

ionization efficiencies; femtosecond laser; mass spectra; polystyrene;

D O I：

10.1016/S0003-2670(96)00612-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The chemical species produced as a result of the thermal decomposition of polystyrene are multiphoton ionized by 500 fs and 15 ns laser pulses. Femtosecond laser ionization gave a more structured mass spectrum and a higher ionization efficiency. This is likely due to the fact that ionization occurs faster than intramolecular relaxation, e.g. photodecomposition, under femtosecond laser pulses.

引用

页码：129 / 133

页数：5

共 32 条

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