Botanical Information Gastrodia elata Blume (under development)
| Synonyms | Gastrodia elata f. alba S.Chow |
| Gastrodia elata f. flavida S.Chow | |
| Gastrodia elata f. glauca S.Chow | |
| Gastrodia elata f. pallens (Kitag.) Tuyama | |
| Gastrodia elata f. pilifera Tuyama | |
| Gastrodia elata f. viridis (Makino) Makino | |
| Gastrodia elata var. gracilis Pamp. | |
| Gastrodia elata var. obovata Yue J.Zhang | |
| Gastrodia elata var. pallens Kitag. | |
| Gastrodia elata var. viridis (Makino) Makino | |
| Gastrodia mairei Schltr. | |
| Gastrodia viridis Makino | |
| Common name (ja) | オニノヤガラ |
| Common name (ko) | 천마 |
| Common name (ru) | Гастродия высокая |
| Common name (zh) | 天麻 |
| Sample preparation | To 1.0 g of the powdered herbal drug add 5.0 mL of methanol. Sonicate for 10 min. Centrifuge and use the supernatant |
| Mobile phase | Water, ethyl acetate, methanol, methylene chloride 2:20:20:58 (v/v/v/v) |
| Derivatization | Treat with a 10% v/v solution of sulfuric acid in methanol, heat at 120 °C for 3 min and examine |
| Sample preparation | Weigh 1.0 g of the powdered sample and place it in a 50-mL centrifuge tube, then add 10 mL of ethanol (70%). Sonicate (560 W) the mixture for 60 min. Centrifuge at about 3000 × g for 5 min. Transfer the supernatant to a 50-mL round-bottomed flask. Evaporate the solvent to dryness at reduced pressure in a rotary evaporator. Dissolve the residue in 1 mL of ethanol |
| Mobile phase | Ethyl acetate, ethanol, water 45:10:1 (v/v/v) |
| Derivatization | Spray with p-hydroxybenzaldehyde reagent (mix 1 mL of dilute sulfuric acid (50%, v/v) and 10 mL of p-hydroxybenzaldehyde in ethanol (2%, w/v)) and heat the plate at 120°C for 5 min |
| Sample preparation | To 0.5 g of the powder, add 5 mL of 70% methanol, ultrasonicate for 30 min, filter and use the filtrate as the test solution |
| Mobile phase | Ethyl acetate, methanol, water 9:1:0.2 (v/v/v) |
| Derivatization | Spray with 10% solution of phosphomolybdic acid in ethanol, heat at 105°C until the spots appear |
| Sample preparation | To 0.5 g of the powder, add 5 mL of 70% methanol, ultrasonicate for 30 min, filter and use the filtrate as the test solution |
| Mobile phase | Petroleum ether (60-90°C) , ethyl acetate 1:1 (v/v) |
| Derivatization | Spray with 10% solution of phosphomolybdic acid in ethanol, heat at 105°C until the spots appear |