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Wm. Craig Byrdwell, phd |
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Taking Lipid Analysis into the 21st Century |
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This is a Glycerophosphoglycerol (GPGro) molecule. This GPGro contains an 18:1 (oleic acid) fatty acyl chain and an 18:0 (stearic acid) acyl chain. It is (SO)-GPGro. Glycerophosphoglylcerols readily form deprotonated molecules, [M-H]–, by electrospray ionization mass spectrometry (ESI-MS) in negative-ion mode. By positive-ion ESI-MS/MS and APCI-MS, this GPGro forms the diacylglycerol-like fragment ion [SO]+ and other fragments. |
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Glycerophosphoglylcerol Home |
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This page has been established to disseminate free copies of mass lists of Glycerophosphoglycerol (GPGro) molecular species. Glycerophosphoglycerol is not a single molecule, but is a class of molecules, which are informally called PhosphatidylGlycerols, or Phosphatidyl Glycerol (PG) molecular species. Mass lists from these pages pertain to analysis of Glycerophosphoglycerol by atmospheric pressure chemical ionization (APCI) and electrospray ionization (ESI) mass spectrometry (MS) techniques: APCI-MS and ESI-MS Data are given for Glycerophosphoglycerol protonated molecules, lithium, sodium and potassium adducts, diacylglycerol-like fragment ions, and fatty acid-related fragments. Unlike amine-containing phospholipids, Glycerophosphoglycerol is best observed in Negative Ion (–) mode. Mass lists are given as: 1. Fatty Acid and Fatty Acid Methyl Ester mass list. 2. Glycerophosphoglycerol & Fragment Masses by GPGro name. 3. Glycerophosphoglycerol & Fragment Masses by GPGro mass. 4. Masses of Adducts of Glycerophosphoglycerol by GPGro name. 5. Masses of Adducts of Glycerophosphoglycerol by GPGro mass. These tables were put together by Dr. Byrdwell over the course of several years of working for the Agricultural Research Service. These mass lists are provided here as a service to my colleagues. Please report any errors in these pages to Byrdwell@Byrdwell.com |
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Wm. Craig Byrdwell, Ph.D. Research Chemist Food Composition Laboratory USDA, ARS, BHNRC 10300 Baltimore Ave. Bldg. 161, BARC-East Beltsville, MD 20705 |
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Disclaimer: Not all fragments or adducts listed here are observed from every class of phospholipid. Every possible adduct and most fragments have been listed here for the sake of thoroughness, whether they are actually observed or not. The page for each phospholipid class will be tailored as time permits. |
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© 2006 The figures and tables on this website are copyrighted in 2006 by William Craig Byrdwell. If you use these tables please reference |