Analysis of Various Organic and Organometallic Compounds Using Nanostructure-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (NALDI-TOFMS)
作者： Mark F. Wyatt , Shujing Ding , Bridget K. Stein , A. Gareth Brenton , R. Hugh Daniels
DOI: 10.1016/J.JASMS.2010.03.038
关键词: Matrix-assisted laser desorption electrospray ionization 、 Sample preparation in mass spectrometry 、 Time-of-flight mass spectrometry 、 Atmospheric-pressure laser ionization 、 Ion source 、 Chemistry 、 Matrix-assisted laser desorption/ionization 、 Mass spectrometry 、 Soft laser desorption 、 Analytical chemistry
摘要: Nanostructure-assisted laser desorption/ionization time-of-flight mass spectrometry (NALDI-TOFMS) has been developed recently as a matrix-free/surface-assisted alternative to matrix-assisted (MALDI-TOFMS). The NALDI surface of silicon nanowires is already very effective for the analysis small medium sized, polar organic molecules in positive ion mode. current study examined this technology several nonpolar organic, organometallic, and ionic compounds mode, well fluorinated compound various acids negative data are compared contrasted with MALDI same compounds, higher sensitivity highlighted by successful characterization two porphyrins sample amount 10 amol per spot.
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