Abstract
A study of derivatives of N6-(isopent-2-enyl)adenine formed by substitution at N-9 indicated that sensitivity of detection by chemical ionization mass spectrometry was maximized by a pentafluorobenzyl substituent and negative ion monitoring. O-t-Butyldimethylsilyl-9-pentafluorobenzyl derivatives of zeatin (Z),cis-zeatin (cis-Z), and dihydrozeatin (DZ) were characterized by mass spectrometry. A procedure was based on these stable derivatives and negative ion chemical ionization mass spectrometry for quantification of zeatin and dihydrozeatin in plant tissue.
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For part VI, see Letham and Singh (1989).
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Letham, D.S., Singh, S. & Wong, O.C. Mass spectrometric analysis of cytokinins in plant tissue VII. Quantification of cytokinin bases by negative ion mass spectrometry. J Plant Growth Regul 10, 107–113 (1991). https://doi.org/10.1007/BF02279321
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DOI: https://doi.org/10.1007/BF02279321