Precursor ion scan enhanced rapid identification of the chemical constituents of Danhong injection by liquid chromatography–tandem mass spectrometry: An integrated strategy

Danhong injection (DHI) is a Chinese Material Medical standardized traditional Chinese medicine injection (TCMI) used for the treatment of coronary heart disease and cerebral ischemia. The present study aims to describe and exemplify an UPLC-QTrap based integrated strategy enhanced by precursor ion (PRE) scan, to systematically and rapidly identify the chemical constituents of DHI. After untargeted EMS-IDA-EPI scan, fragmentation study of...