Matches in DBpedia 2016-04 for { ?s ?p "Chemical ionization (CI) is an ionization technique used in mass spectrometry. Chemical ionization is a lower energy process than electron ionization (EI). The lower energy yields less or sometimes no fragmentation, and usually a simpler spectrum. The lack of fragmentation limits the amount of structural information that can be determined about the ionated species. However, a typical CI spectra has an easily identifiable protonated molecular ion peak [M+1]+ which allows for determination of molecular mass. CI is thus useful in cases where the energy from the bombarding electrons in EI is so great that impact almost exclusively causes fragmentation to occur and molecular ions are not formed in large enough quantities to produce an identifiable molecular ion peak."@en }
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- Chemical_ionization abstract "Chemical ionization (CI) is an ionization technique used in mass spectrometry. Chemical ionization is a lower energy process than electron ionization (EI). The lower energy yields less or sometimes no fragmentation, and usually a simpler spectrum. The lack of fragmentation limits the amount of structural information that can be determined about the ionated species. However, a typical CI spectra has an easily identifiable protonated molecular ion peak [M+1]+ which allows for determination of molecular mass. CI is thus useful in cases where the energy from the bombarding electrons in EI is so great that impact almost exclusively causes fragmentation to occur and molecular ions are not formed in large enough quantities to produce an identifiable molecular ion peak.".
- Q471254 abstract "Chemical ionization (CI) is an ionization technique used in mass spectrometry. Chemical ionization is a lower energy process than electron ionization (EI). The lower energy yields less or sometimes no fragmentation, and usually a simpler spectrum. The lack of fragmentation limits the amount of structural information that can be determined about the ionated species. However, a typical CI spectra has an easily identifiable protonated molecular ion peak [M+1]+ which allows for determination of molecular mass. CI is thus useful in cases where the energy from the bombarding electrons in EI is so great that impact almost exclusively causes fragmentation to occur and molecular ions are not formed in large enough quantities to produce an identifiable molecular ion peak.".