Graphene and Graphene Oxide Sheets Supported on Silica as Versatile and High‐Performance Adsorbents for Solid‐Phase Extraction

Abstract

On the GO: Graphene (G) and graphene oxide (GO) supported on silica are demonstrated to be excellent adsorbents for reversed-phase and normal-phase solid-phase extraction (RP- and NP-SPE) towards various analytes ranging from small molecules to proteins and peptides. Notably, G-bound silica is capable of extracting proteins with large molecular weight and phosphorylated peptides, making it particularly suitable for MALDI-TOF mass spectrometry. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.