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A so-called CI-CID mass spectral library based on GC-CI-MS-MS, LC-TSP-MS-MS, LC-ESI-MS-MS and LC-APCI-MS-MS data has been created and evaluated. The main advantage of the CI-CID spectral library is the independence of the chemical ionization and/or collision-induced dissociation procedure and the system apparatus used. Comparison of MS-MS spectra from different ionization methods indicate that fragment...