SnO2–ZnSn(OH)6: a novel binary affinity probe for global phosphopeptide detection†
Abstract
ZnSn(OH)6 and binary-component SnO2–ZnSn(OH)6 were introduced as affinity probes for phosphopeptide enrichment for the first time. Two strategies, either ZnSn(OH)6 and SnO2 serial enrichment or binary-component SnO2–ZnSn(OH)6 enrichment in a single run, were proposed to enhance multi-phosphopeptide enrichment and to significantly improve global phosphopeptide detection.