# Identification of Calculus Bovis and its mixed varieties by ultra-high-performance liquid chromatography/quadrupole time-of-flight mass spectrometry (UHPLC-Q/TOF-MS) combined with the principal component analysis (PCA) method

> Research article (Journal of Pharmaceutical and Biomedical Analysis, 2019) · cited 33× · AI/ML

**Wikidata**: [openalex:W2983698015](https://www.wikidata.org/wiki/openalex:W2983698015)  
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