Whenham RJ. Evaluation of selective detectors for the rapid and sensitive gas chromatographic assay of cytokinins, and application to the analysis of cytokinins in plant extracts.
PLANTA 1983;
157:554-560. [PMID:
24264422 DOI:
10.1007/bf00396888]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/1982] [Accepted: 01/11/1983] [Indexed: 06/02/2023]
Abstract
The performances of four gas chromatographic detectors (nitrogen-phosphorus, flamephotometric, electron-capture and flame-ionisation) were compared for the analysis of permethylated cytokinins. The nitrogen-phosphorus and flame-photometric detectors (selective for nitrogen and sulphur-containing compounds respectively) gave greatly enhanced sensitivity and-or specificity compared with the flame-ionisation detector for a wide range of cytokinin types. The response of the electron-capture and flame-ionisation detectors was quantitatively similar. The improved performance of the nitrogen-phosphorus and flame-photometric detectors was used to develop rapid and simple purification techniques for the assay of zeatin and zeatin riboside in coconut milk; dihydrozeatin and dihydrozeatin riboside in bean leaves and cytokinin nucleosides in wheat-germ transfer RNA.
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