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Positive-ion (A) and negative-ion (B) reflector MALDI mass spectra of Cs8SOS. The samples for MALDI analysis were prepared by mixing 1 vol. of 1 mM CsOH, 1 vol. of 0.1 mM Cs8SOS in 8 mM CsCl and 1 vol. of G2CHCA solution. Insets show isotopic pattern of the molecular peak.
