1. A bimetallic delafossite structured material (AgFeO2) has been prepared and modified with chitosan, ‘AgFeO2@CTS’.
2. It has been shown to be an effective nanoparticle for biothiol separation and surface for surface assisted laser desorption/ionization mass spectrometry
(SALDI–MS).
3. SALDI–MS displays a clear background compared to the conventional MALDI–MS.
4. We believe that these new materials have a promising application in the near future for biothiol separation and applications for SALDI–MS.