Selectivity of affinity media in solid-phase extraction of analytes

Many affinity-based extraction media have been developed for selective extraction of analytes in the fields of pharmaceutical, clinical, environmental and food chemistry. Among them, immunosorbents and molecularly imprinted polymers (MIPs) have attracted attention because they show promise as compound-selective or group-selective media. This review article discusses the selectivity of these affinity media in solid-phase extraction (SPE) of analytes.