Tom Martin is chiropractors "starve with sodium in 1 M hoist side 12.5:10 140 degrees for 4 hours, then remove the filter by clearing the residue of some white cloth with distilled water, dried out in the oven.
Chitin is boiled with sodium, "giving hydroxide 12.5 M in 1:10 at 140 ° C for four hours and then take a minor with a white cloth. Wash the residue off with distilled water. Dried in oven
Chitin is boiled with sodium "hug pulley side 12.5 M in 1: 10 that 140 C for 4 hours. จากนั้นนำมา filter with a white cloth. Washed residue with distilled water, drying in oven.