Botanical Information Curcuma phaeocaulis Valeton (procuring samples)
| Synonyms | No synonym |
| Sample preparation | Transfer 20 µL of the volatile oil to a test tube and dissolve in 0.4 mL of ethyl acetate |
| Mobile phase | Petroleum ether (60–80 ?C), ethyl acetate 96:4 (v/v) |
| Derivatization | No derivatization |
| Sample preparation | Weigh 10.0 g of the powdered sample and place it in a 100-mL conical flask, then add 50 mL of ethanol (95%). Sonicate (400 W) the mixture for 30 min. Filter and transfer the filtrate to a 150-mL round-bottomed flask. Evaporate the solvent to dryness at reduced pressure in a rotary evaporator. Dissolve the residue in 1 mL of ethanol (95%). Filter the solution |
| Mobile phase | Petroleum ether (60-80ºC), ethyl acetate 18:2 (v/v) |
| Derivatization | No derivatization |
| Sample preparation | Weigh 1 g of powder, add 50 mL of petroleum ether, sonicate for 1 hour, filter, concentrate the filtrate to make 2 mL and use as the test solution |
| Mobile phase | Petroleum ether, ethyl acetate 9:1 (v/v) |
| Derivatization | Spray with vanillin-sulfuric acid reagent and heat the plate at 105°C |