Abstract
FAB ionisation combined with collisional activation and MS/MS analysis were carried out to confirm the structures of a related series of chlorophyll derivatives obtained by HPLC separation of spinach extract. The compounds included chlorophylls a and b, the corresponding pheophytins, chlorophyllides, pheophorbides, and pyropheophytins, and the zinc-containing derivatives zinc pheophytin a and zinc pyropheophytin a
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