TY - JOUR A1 - Weidner, Steffen A1 - Falkenhagen, Jana T1 - Imaging mass spectrometry for examining localization of polymeric composition in matrix-assisted laser desorption/ionization samples T2 - Rapid communications in mass spectrometry N2 - The localization of polymeric composition in samples prepared for matrix-assisted laser desorption/ionization (MALDI) analysis has been investigated by imaging mass spectrometry. Various matrices and solvents were used for sample spot preparation of a polybutyleneglycol (PBG 1000). It was shown that in visibly homogeneous spots, prepared using the dried droplet method, separation between matrix and polymer takes place. Moreover, using -cyano-4-hydroxycinnamic acid (CCA) as matrix and methanol as solvent molecular mass separation of the polymer homologues in the spots was detectable. In contrast to manually spotted samples, dry spray deposition results in homogeneous layers showing no separation effects. PB - Wiley CY - Chichester KW - Imaging KW - MALDI TOF Massenspektrometrie KW - Polymere PY - 2009 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/19622 AN - OPUS4-19622 SN - 0951-4198 SN - 1097-0231 VL - 23 IS - 5 SP - 653 EP - 660 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany