Bitte wählen Sie ihr Lieferland und ihre Kundengruppe
Resonance ionization mass spectrometry (RIMS) is an analytical tool discovered in the 1970's, developed primarily in the 1980's and one which will undoubtedly see continued and expanding use through the 1990's. RIMS is a powerful diagnostic tool for elemental and transient analysis in studies of laser desorption and laser ablation. The multistep laser photoionization process, when coupled with conventinal mass analysis, can provide exceptional detectivity, dynamic range and discrimination against interfering species. These properties can be used to great advantage in the analysis of conventional materials and in the interrogation of interfacial phenomena. In this paper, it has briefly reviewed two recent applications of RIMS, both for conventional chemical analysis and as diagnostic for other laser-based processes. In examination of routine analytical samples, the effective duty cycle can be greatly improved relative to continuous sample evaporation. In addition, these methods allow direct analysis without extensive sample preparation. It is anticipated that RIMS will play an increasingly important role in the study of laser desorption process, especially as surface imaging capabilities become coupled to the ionization detection.