TECHNOLOGY FOCUS - BIOLOGY - Preferred Method: The method comprises flowing amino acid mixed solution through I type adsorption chromatographic column, and using 10 mol/l aqueous ammonia to adjust pH to 4.8-5. The method comprises flowing preserved component separation solution through II type activated carbon adsorption chromatographic column, adjusting pH to 9-10, passing through an anion exchange resin column with diameter of 4-15 cm and height of 20-200 cm for separation, washing using water, releasing hydrochloric acid, evaporating concentrate, and separating to obtain proline, valine and lysine. The method comprises flowing third component separation liquid through II type activated carbon adsorption chromatographic column, adjusting pH of the solution to 9-10, passing through the anion resin column with diameter of 4-15 cm and height of 20-200 cm for separation, washing using water, releasing hydrochloric acid, collecting washing liquid to obtain glycine and alanine, serine and threonine, aspartic acid and glutamic acid three-component separation solution, adjusting pH to 3.2-6.2, then flowing three components separation solution through III type activated carbon adsorption chromatographic column with diameter of 0.5-8 m and height of 1-88 m, evaporating the concentrate, collecting to obtain glycine, alanine, serine, threonine, aspartic acid and glutamic acid. The method comprises flowing bright component separation solution through II type activated carbon adsorption chromatographic column, passing through a cationic exchange resin column with diameter of 4-15 cm and height of 20-200 cm for separation, releasing aqueous ammonia, and separating to obtain methionine, cystine, arginine and histidine, adjusting pH of the remaining bright component separation solution of isoleucine using alkali to 6-6.5, and the flowing through the through II type activated carbon adsorption chromatographic column with diameter of 0.5-8 m and height of 1-88 m, and separating to obtain leucine and isoleucine. The method comprises hydrolyzing the protein by adding acid, heating, where the acid is 6-10 mol/l concentrated hydrochloric acid, heating temperature is 110-125 degrees C, the heating time is 7-20 hours, adding 500 units/ml bacterial protease, 400 units/ml fungal protease and 50 units/ml papain to the hydrolyzed protein, and carrying out enzymolysis at 30-40 degrees C for 2 hours. The mixed solution of hydrochloric acid-ethanol is mixed solution of 0.1 mol/l hydrochloric acid and 50% ethanol. The alkali is 2 mol/l aqueous ammonia or 2 mol/l sodium hydroxide. Hydrochloric acid is 0.1 mol/l hydrochloric acid. The diameter of I type activated carbon adsorption chromatographic column is 0.5-8 m, and height is 1-28 m, and chromatographic column contains granular activated carbon plastid. The diameter of the II type activated carbon adsorption chromatographic column is 0.5-8 m, and height is 1-48 m, and chromatographic column contains granular activated carbon plastid. The diameter of the III type activated carbon adsorption chromatographic column is 0.5-8 m, and height is 1-88 m, and chromatographic column contains granular activated carbon plastid. Preferred Components: The protein is bone glue, human and animal natural growing hair, pig hair of sensory to slaughtering animal, wool, horsehair, duck feathers, blood protein, silkworm pupa or fish, or cottonseed meal, rapeseed meal, tea seed cake, castor meal and/or flax meal containing various toxins.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: In the device, the storage tank is set with acid inlet for adding hydrochloric acid to adjust pH to 3.2-6.2. The inlet of the III type third activated carbon adsorption chromatographic column is connected with the eighth liquid storage tank. A ninth liquid storage tank is used for collecting and separating solution of serine threonine, and is set with acid inlet for adding hydrochloric acid to adjust pH to 3.2-6.2. The inlet of fourth III type activated carbon adsorption chromatographic column is connected to ninth liquid storage tank for separating serine and threonine. The liquid storage jar is used for collecting and separating the solution of aspartic acid and glutamic acid, and is set with acid inlet for adding hydrochloric acid to adjust pH to 3.2-6.2. The inlet of fifth III type activated carbon adsorption chromatographic column is connected to the tenth storage liquid jar for separating aspartic acid and glutamic acid.