Mass spectrometry of permethylated folic
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Ronald G. Smith; Joyce C. Pegues; David Farquhar; Ti Li Loo; Yeu-Ming Wang
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Article
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1981
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John Wiley and Sons
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English
โ 388 KB
๐ 2 views
Folic acid and several analogs have been characterized as their permethylated derivatives. These derivatives are readily evaporated from the solid probe and provide spectra with abundant molecular ions and characteristic fragment ions. This method has been used to confirm the identities of the two m