PMID- 20434160 OWN - NLM STAT- MEDLINE DCOM- 20100826 LR - 20181201 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1217 IP - 23 DP - 2010 Jun 4 TI - Differently complex oligosaccharides can be easily identified by matrix-assisted laser desorption and ionization time-of-flight mass spectrometry directly from a standard thin-layer chromatography plate. PG - 3711-5 LID - 10.1016/j.chroma.2010.04.005 [doi] AB - Thin-layer chromatography (TLC) is a simple, fast and inexpensive separation method. Unambiguous identification of the TLC spots is, however, often a problem. Here we show for the first time that oligosaccharides (derived from dextran, alginate, hyaluronan and chondroitin sulfate) can be characterized by matrix-assisted laser desorption and ionization time-of-flight (MALDI-TOF) mass spectrometry (MS) directly on a TLC plate. The applied oligosaccharides were either commercially available or obtained from the polysaccharides by HCl-induced hydrolysis. Normal phase TLC was followed by MALDI-TOF MS subsequent to matrix deposition. It will be shown that high quality mass spectra can be obtained that enable unequivocal assignments. It will also be shown that the high content of formic acid in the solvent system does not confer major problems but is responsible for the partial formylation of the analyte and minor N-acetyl loss from hyaluronan and chondroitin sulfate. CI - Copyright 2010 Elsevier B.V. All rights reserved. FAU - Nimptsch, K AU - Nimptsch K AD - University of Leipzig, Medical Faculty, Institute of Medical Physics and Biophysics, Hartelstr. 16-18, D-04107 Leipzig, Germany. FAU - Suss, R AU - Suss R FAU - Riemer, T AU - Riemer T FAU - Nimptsch, A AU - Nimptsch A FAU - Schnabelrauch, M AU - Schnabelrauch M FAU - Schiller, J AU - Schiller J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100413 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Alginates) RN - 0 (Dextrans) RN - 0 (Hexuronic Acids) RN - 0 (Oligosaccharides) RN - 8A5D83Q4RW (Glucuronic Acid) RN - 9004-61-9 (Hyaluronic Acid) RN - 9007-27-6 (Chondroitin) RN - QTT17582CB (Hydrochloric Acid) SB - IM MH - Alginates/chemistry MH - Chondroitin/chemistry MH - Chromatography, Thin Layer/*methods MH - Dextrans/chemistry MH - Glucuronic Acid/chemistry MH - Hexuronic Acids/chemistry MH - Hyaluronic Acid/chemistry MH - Hydrochloric Acid/chemistry MH - Hydrolysis MH - Oligosaccharides/*chemistry MH - Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/*methods EDAT- 2010/05/04 06:00 MHDA- 2010/08/27 06:00 CRDT- 2010/05/04 06:00 PHST- 2010/01/22 00:00 [received] PHST- 2010/03/29 00:00 [revised] PHST- 2010/04/06 00:00 [accepted] PHST- 2010/05/04 06:00 [entrez] PHST- 2010/05/04 06:00 [pubmed] PHST- 2010/08/27 06:00 [medline] AID - S0021-9673(10)00473-5 [pii] AID - 10.1016/j.chroma.2010.04.005 [doi] PST - ppublish SO - J Chromatogr A. 2010 Jun 4;1217(23):3711-5. doi: 10.1016/j.chroma.2010.04.005. Epub 2010 Apr 13.