Braun R M, Blenkinsopp P, Mullock S J, Corlett C, Willey K F, Vickerman J C, Winograd N
Department of Chemistry, Penn State University, University Park 16802, USA.
Rapid Commun Mass Spectrom. 1998;12(18):1246-52. doi: 10.1002/(SICI)1097-0231(19980930)12:18<1246::AID-RCM316>3.0.CO;2-C.
A chemical imaging time-of-flight secondary ion mass spectrometer is described. It consists of a liquid metal ion gun, medium energy resolution reflectron mass analyzer, liquid nitrogen cooled sample stage, preparation chamber and dual stage entry port. Unique features include compatibility with laser postionization experiments, large field of view, cryogenic sample handling capability and high incident ion beam current. Instrument performance is illustrated by the characterization of scanning electron microscopy grids, silver and functionalized polystyrene beads and the postionization of an organic overlayer on a gold substrate.
描述了一种化学成像飞行时间二次离子质谱仪。它由液态金属离子枪、中能分辨率反射式质谱分析仪、液氮冷却样品台、制备室和双级入口组成。其独特之处包括与激光后电离实验的兼容性、大视野、低温样品处理能力和高入射离子束电流。通过对扫描电子显微镜网格、银和功能化聚苯乙烯珠的表征以及金基底上有机覆盖层的后电离来说明仪器性能。
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