Laser desorption/ionization time of flight mass spectrometry of phosphorus-containing carbons |
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| Affiliation: | 1. Institute for Sorption and Problems of Endoecology, National Academy of Sciences of Ukraine, Naumov St. 13, 03164 Kyiv, Ukraine;2. O.O. Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine, Naumov St. 17, 03164 Kyiv, Ukraine;1. School of Water Resources and Environment, China University of Geosciences (Beijing), Xueyuan Road 29, Beijing 100083, PR China;2. Key Laboratory of Groundwater Circulation and Evolution, China University of Geosciences (Beijing), Ministry of Education, Xueyuan Road 29, Beijing 100083, PR China;1. Saint-Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg, 199034, Russian Federation;2. Voeikov Main Geophysical Observatory, ul. Karbysheva 7, St. Petersburg, 194021, Russian Federation;1. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, 438 Hebei West Avenue, Qinhuangdao, 066004, China;2. Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, 438 Hebei West Avenue, Qinhuangdao, 066004, China;1. CSIRO, Kensington, WA, USA;2. ISTerre, Université Grenoble Alpes, 38041, Grenoble, France;3. ISTerre, CNRS, 38041, Grenoble, France;4. IFPEN, Rueil-Malmaison, France;5. Aix-Marseille University, CNRS-IRD, CEREGE UM34, Europole Mediterraneen de l Arbois, BP80, 13545, Aix-en-Provence, France;6. LSCE, Gif sur Yvette, France;7. KU Leuven, Celestijnenlaan 200E, 3001, Heverlee, Belgium |
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| Abstract: | Laser desorption/ionization method and time-of-flight mass spectrometry (LDI-TOF) was used to reveal polyphosphates in phosphorus-containing carbons. Phosphorus-containing carbons were obtained by phosphoric acid activation of polymer and lignocellulosic precursor as well as by modification of activated carbon with H3PO4. LDI-TOF mass spectrometry revealed polyphosphates with degree of polymerization up to four. The most intensive peaks in LDI-TOF mass spectra correspond to fragments generated by loss of one water molecule from corresponding phosphoric acid ([M −H2O −H]−) in mono, di and triphosphate groups and by loss of two water molecules ([M −2H2O −H]−) in tetraphosphate group. |
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