Detection of attomole amounts of analyte by desorption electrospray ionization mass spectrometry (DESI-MS) determined using fluorescence spectroscopy.
We report the use of fluorescence spectroscopy to investigate the amount of material removed from a PTFE surface and detected during desorption electrospray ionization (DESI) mass spectrometry measurements. The fluorescence intensity before and after DESI analysis of rhodamine 6G is used to determine the amount of material removed from the surface per mass spectrum. Calculations indicate low attomole amounts are removed per linear ion trap mass spectrum.
Bereman
Michael S
MS
W.M. Keck FT-ICR Mass Spectrometry Laboratory, Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, USA.
Muddiman
David C
DC
D008832:Microchemistry / Q000379:methods*; D036103:Nanotechnology / Q000379:methods*; D012235:Rhodamines / Q000737:chemistry*; D013050:Spectrometry, Fluorescence / Q000379:methods*; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000379:methods*
D012235:Rhodamines; C026188:rhodamine 6G