HPLC analysis of alfatoxins in medicinal herb extracts by immunoaffinity column cleanup and post-column bromination Determination of aflatoxin B1, B2, G1, G2 in Armeniacae Semen Amarum by high-performance liquid chromatography-tandem mass spectrometry A high throughput coupled with high performance liquid chromatography-tandem mass spectrometry method for determination of aflatoxin B1, B2, G1, G2 in 10 traditional Chinese medicines Limit standard of mycotoxins and advances in studies on its application in Chinese materia medica Limit standard of mycotoxins and advances in studies on its application in Chinese materia medica