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Positive-ion reflector MALDI mass spectrum of Cs8SOS. The sample was prepared using 1 vol. of 3 μM Cs8SOS solution, 1 vol. of 1 mM CsOH, and 1 vol. of G2CHCA solution, and applying 0.25 μL of the mixture to the target spot. Inset shows isotopic pattern of [MCs+Cs]+ peak.
