Botanical Information Alpinia hainanensis K. Schum. (under development)

Synonyms Alpinia katsumadae Hayata
Alpinia henryi K. Schum.
Alpinia kainantensis Masam.
Languas hainanensis (K. Schum.) Merr.
Languas henryi (K. Schum.) Merr.
Languas katsumadae (Hayata) Merr.
Common name (en) Cao Dou Kou
Common name (zh) 草豆蔻

Sample preparation Weigh 1.0 g of the powdered sample and place it in a 50-mL centrifuge tube, then add 5 mL of methanol. Sonicate (140 W) the mixture for 5 min. Centrifuge at about 2800 × g for 10 min. Filter through a 0.45-µm PTFE filter
Mobile phase n-hexane, ethyl acetate, methanol 15:4:1 (v/v/v)
Derivatization No derivatization