Elemental Imaging via Laser Ionization Orthogonal Time-of-Flight Mass Spectrometry

摘要

ABSTRACT: An elemental imaging method using a lasernionization orthogonal time-of-flight mass spectrometernsystem was developed for the simultaneous detection ofnall metal and nonmetal elements. The instrument controlnand data processing were realized by self-developed pro-ngrams. This system is capable of simultaneous detection ofnmetal and nonmetal elements, with a spatial resolution ofn50 μm, the lowest detection limits of 3u000110-7ng/g (Li), andna dynamic range of 7 orders of magnitude. Moreover, thisntechnique does not require standards for quantitative ana-nlysis and can be a powerful and versatile tool for elementalnimaging.