Establishing a reference standard of astragaloside IV isolated from Radix Astragalus
Lam Hong Nguyen, Vinh Ha Nguyen Van, Thi Lan Gian
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Page: 1-6,
Research for detecting and quantitation of prohibited substance theophylline in some cosmetic matrices by liquid chromatography
Thu Trang Do, Van Ha Nguyen
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Page: 23-28,