Study on the ESI-MS Fingerprinting of Water Extract of Compound Indigowoad Root Granule
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Graphical Abstract
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Abstract
Sialic acid and lysine as an internal standard substance, the ESI-MS fingerprinting of extracts of Compound Indigowoad Root Granule which from different origin was studied. The fingerprinting was obtained with better precision and reproducibility. This work can provide a reference for the quality control of Compound Indigowoad Root Granule.
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