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An LC-DAD-ESI-MS(2) method was developed for simultaneous analysis of major chemical constituents in Shexiang Baoxin Pill (SBP), an important multiherbal formula in traditional Chinese medicine widely used for treating cardiovascular diseases. The chromatographic separation was performed on a Symmetry C18 column (5 μm, 250 × 4.6 mm), whilst water with 0.5% formic acid and acetonitrile were used as...
LC–DAD coupled with electrospray tandem mass spectrometry (LC–ESI–MS–MS) has been used to evaluate the quality of the traditional Chinese medicine Huang-Lian-Jie-Du-Tang (HLJDT). Twenty-five chromatographic peaks were obtained from a C18 analytical column by gradient elution with acetonitrile and formate buffer (containing 0.5% formic acid) at a flow rate of 1.0 mL min−1. The linearity, precision,...
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