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《Analytical letters》2012,45(11):1157-1167
Abstract Temperature profiling of MIKE spectra allows identification of protonated psilocin in the presence of other compounds with the same mass. The use of multiple ionizing methods to give ions (M+H)+, (M+ML4)+, and M is shown to assist in determining the molecular weights of new natural products. Structural information is obtained from the MIKE spectra. All these determinations can be made on the intact mushroom or its simple alcoholic extracts. 相似文献
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Mass spectrometric data were reported for 1,4-; 1,5-; 1,6-; 1,7- and 2,6-bis(trimethylsiloxy)naphthalenes. By the use of metastable-ion measurement the major fragmentation pathways of the five compounds have been deduced. The doubly charged ion and ion-molecule-reaction ion were also discussed. 相似文献