テクニック
HPLC: suitable
試験パラメータ
column: Discovery C18, 25 cm x 4.6 mm I.D., 5 μm particles (504971)
mobile phase: [A] 1 mM potassium phosphate, monobasic; [B] acetonitrile
gradient: 5 to 45% B in 18 min; 45 to 80% B in 7 min; held at 80% B for 3 min
flow rate: 1.5 mL/min
pressure: 3191 psi (220 bar)
column temp.: 27 °C
detector: UV, 227 nm
injection: 20 μL
sample: 20 μg/mL in water: acetonitrile (86:14)
適合性
application for HPLC
アプリケーション
vitamins, nutraceuticals, and natural products
アナリシスノート
This application demonstrates the suitability of Discovery C18 for the efficient separation of withania extract by the USP monograph.
法的情報
Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany
アナライト
詳細
Withanoside IV
Withanoside V
Withaferin A
12-Deoxywithastramonolide
Withanolide A
Withanolide B
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