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To reveal the utilization value of leaf, stem, and root of Artemisia argyi, a rapid online liquid microextraction combined with a high‐performance liquid chromatography coupled with 2,2‐nitrogen‐di (3‐ethyl‐benzothiazole‐6‐sulfonic acid) diammonium salt antioxidant assay system was established for analysis of antioxidants in the leaf, stem, and root of A. argyi, and a calibration quantitative method...
A fast method for simultaneous determination of five compounds (one coumarin, two alkaloids and two bibenzyls) in Dendrobium spp. using pressurized liquid extraction and ultra‐performance liquid chromatography coupled with photo diode array detection was developed. The separation was performed on an Acquity UPLC BEH C18 column (50 mm×2.1 mm id, 1.7 μm) with gradient elution of phosphate buffer (pH=7...
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