PMID- 30859267 OWN - NLM STAT- MEDLINE DCOM- 20190424 LR - 20191210 IS - 1618-2650 (Electronic) IS - 1618-2642 (Linking) VI - 411 IP - 11 DP - 2019 Apr TI - Multi-residue analysis of plant growth regulators and pesticides in traditional Chinese medicines by high-performance liquid chromatography coupled with tandem mass spectrometry. PG - 2447-2460 LID - 10.1007/s00216-019-01691-8 [doi] AB - A multi-residue method was developed for the simultaneous determination of 24 plant growth regulators (PGRs) and 11 representative pesticides that were widely applied in plants used in traditional Chinese medicines (TCMs) by high-performance liquid chromatography coupled with tandem mass spectrometry (HPLC-MS/MS). The method was validated taking into consideration EU guidelines; calibration curves for all of the targeted analytes showed correlation coefficients (gamma(2)) higher than 0.9901. The limits of detection (LOD) ranged from 0.2 to 8 mug/kg. The average recovery for all analytes in spiked samples ranged from 63.18 to 127.23%, with a relative standard deviation of