Laser Desorption Fourier Transform Mass Spectrometry Exchange Studies of Air-Oxidized Alkanethiol Self-Assembled Monolayers on Gold

摘要

Exchange of self-assembled monolayers (SAMs) of do- decanethiol (C_12H_25SH) on gold with decanethiol (C_10h_21SH) was detected with laser-desorption Fourier transform mass spectrometry(LD-FTMS) in the negative ion mode. The amount of adsorption of C_10H_21SH is dependent on the extent of air oxidation of the C_12H_25SH SAM.