- Detection and determination of reticuline and N-methylcoculaurine in the Annonaceae family using liquid chromatography-tandem mass spectrometry. Kotake, Y., Okuda, K., Kamizono, M., Matsumoto, N., Tanahashi, T., Hara, H., Caparros-Lefebvre, D., Ohta, S. J. Chromatogr. B Analyt. Technol. Biomed. Life Sci. (2004)