Field desorption mass spectra of the cyc
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Margaret M. Sheil; Peter J. Derrick
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Article
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1992
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John Wiley and Sons
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English
β 532 KB
The formation of ions of the cyclic depsipeptide valinomycin by field desorption has been investigated in detail. The ratio of molecular ions M+' to protonated molecules (M + HI+ has been found to be independent of emitter heating current and the nature of particular additives to the solution. In co