Metabolomics distinguishes different grades of <i>Scrophularia ningpoensis</i> hemsl: Towards a biomarker discovery and quality evaluation.

Heliyon · 2024 · PMC11004711 · PMID 38601543

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a decreasing trendno p-value reported

HPLC validation tests affirm a decreasing trend in harpagoside and cinnamic acid levels between first and third-grade samples.

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