求助两篇英文文献，谢谢啊

应助达人

一天内，第二贴需悬赏，在右上角的管理处转换

应助达人

1 偶看ok

应助达人

2 ok ok

谢谢啊 不太懂

还有两篇，现在可以悬赏吗

题目1：Organic Surface Analysis by Two-Laser Ion Trap Mass Spectrometry. 2.Improved Desorption/Photoionization Configuration
Anal. Chem., 1998, 70 (6), pp 1208–1213
http://pubs.acs.org/doi/abs/10.1021/ac971116p
题目2：A Mobile Mass Spectrometer for Comprehensive On-Line Analysis of Trace and Bulk Components of Complex Gas Mixtures: Parallel Application of the Laser-Based Ionization Methods VUV Single- Photon
Ionization, Resonant Multiphoton Ioniza- tion, and Laser-Induced
Electron Impact Ionization
Anal. Chem., 2001, 73 (15), pp 3590–3604
http://pubs.acs.org/doi/abs/10.1021/ac010023b

应助达人

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