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Iwai, K.; Suzuki, T.; Fujiwake, H.; Oka, S., Simultaneous Microdetermination of Capsaicin and Its Four Analogues by Using High-Performance Liquid Chromatography and Gas Chromatography-Mass Spectrometry, J. Chromatogr., 1979, 172, 1, 303-311, https://doi.org/10.1016/S0021-9673(00)90966-X . [all data]