Benzalkonium chloride (BAK) is a common preservative composed of quaternary ammonium compounds with 8–18 carbon alkyl chains, mainly C12, C14, and C16 homologs. Because BAK can adsorb to surfaces, ...
This study developed a High-Performance Liquid Chromatography (HPLC) method for the analysis of major withanolides in ashwagandha root and commercially available supplements. System suitability ...
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