Fig. 3

Mass spectra of the peaks (a) 7.4, (b) 9.3 and (c) 11. The mass spectra were obtained by MALDI-TOF mass spectrometry in a positive linear mode using DHB matrix
Mass spectra of the peaks (a) 7.4, (b) 9.3 and (c) 11. The mass spectra were obtained by MALDI-TOF mass spectrometry in a positive linear mode using DHB matrix