TY - CONF A1 - Falkenhagen, Jana T1 - Coupled Separation and Detection Techniques: New Aspects and Problems T2 - 17th International Symposium on Polymer Analysis and Characterization (ISPAC 2004) CY - Heidelberg, Germany DA - 2004-06-07 PY - 2004 AN - OPUS4-5530 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Falkenhagen, Jana T1 - Coupled Separation and Detection Techniques: New Aspects and Problems T2 - 17th International Symposium on Polymer Analysis and Characterization (ISPAC 2004) CY - Heidelberg, Germany DA - 2004-06-06 PY - 2004 AN - OPUS4-4343 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Ralph-Peter T1 - Characterization of Polyesters and Copolyesters by Coupled Liquid Chromatographic and Spectroscopic Techniques T2 - 11. Internationale Fachtagung Polymerwerkstoffe 2004 CY - Halle (Saale), Germany DA - 2004-09-29 PY - 2004 AN - OPUS4-4339 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rittig, F. T1 - Characterization of technical polymers using liquid chromatography as well as hyphenated techniques T2 - Waters International GPC 2003 and ISPAC-16 Symposium CY - Baltimore, MD, USA DA - 2003-06-09 PY - 2003 AN - OPUS4-4654 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Falkenhagen, Jana T1 - Application of Solvent-free Sample Preparation for LC/MALDI-MS Coupling T2 - 52nd ASMS Conference CY - Nashville, TN, USA DA - 2004-05-23 PY - 2004 AN - OPUS4-4344 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hofe, T. T1 - Polymere als zertifizierte Referenzmaterialien T2 - International Symposium on Instrumentalized Analytical Chemistry and Computer Technology CY - Düsseldorf, Germany DA - 2003-03-26 PY - 2003 AN - OPUS4-4106 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gross, J.H. A1 - Weidner, Steffen T1 - Influence of Electric Field Strength and Emitter Temperature on Field Desorption Mass Spectra of Polyethylene Oligomers N2 - The influence of electric field strength and emitter temperature on dehydrogenation and C–C cleavage in field desorption (FD) mass spectrometry of polyethylene (PE) oligomers of average molecular weights ranging from 500 to 2000 is examined. Low mass oligomers yield molecular weight (MW) distributions that are basically in accordance with results from gel-permeation chromatography. For these materials, dehydrogenation can be greatly reduced by reduction of the emitter potential. Furthermore, the influence of emitter potential on MW distributions indicates the occurrence of field-induced C–C cleavages. Reliable MW distributions are more difficult to obtain from higher mass oligomers by FD-MS because of the need for higher field strength and higher emitter temperatures to effect their desorption/ionization. Experiments reveal that the application of FD-MS to PE oligomers is limited not only by field-induced but also by thermally-induced fragmentations. Even then, FD mass spectra contain valuable information on mass range and homogeneity of PE samples up to about m/z 3600. PY - 2000 DO - https://doi.org/10.1255/ejms.300 SN - 1469-0667 SN - 1356-1049 SN - 1365-0718 IS - 6 SP - 11 EP - 17 PB - IM Publications CY - Chichester AN - OPUS4-11098 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Falkenhagen, Jana T1 - Characterization of polyesters and copolyesters by coupled chromatographic and spectroscopic techniques T2 - 2nd International Symposium on the Separation and Characterization of Natural and Synthetic Macromolecules SCM-2 CY - Amsterdam, Netherlands DA - 2005-02-02 PY - 2005 AN - OPUS4-5535 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gerstung, Vanessa T1 - Field-Flow Fractionation of plasma-synthezised polymers T2 - 10th International Symposium on Field-Flow Fractionation, FFF 2002 CY - Amsterdam, Netherlands DA - 2002-07-01 PY - 2002 AN - OPUS4-10621 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Falkenhagen, Jana T1 - Characterization of silicon polymers by coupling of liquid chromatographic methods with MALDI-TOF-MS T2 - ISPAC 2000 CY - Pittsburgh, PA, USA DA - 2000-06-18 PY - 2000 AN - OPUS4-11130 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -