Determination of the content of phenylthiohydantoin-phenylalanine

Phenylthiohydantoin-phenylalanine melting point is C.Its abstention is not 187°less than 98% ( LC ) .It's the brand of GR.The blueprint is 100MG or 1G. is acclimated for the blockage of branch stones, abetment in glucose metabolism, helps to abstinent hypoglycemia, advance the physique energy. For the amalgam of new aspartame and some chiral biologic average raw materials. Alanine is the axiological assemblage of protein, is one of 21 kinds of amino acerbic agreement of animal proteins. The amino acerbic agreement of protein molecules are L- amino acid. Because they are in the aforementioned pH, the answerable accompaniment of assorted amino acids is different, with altered isoelectric point ( PI ), which is the assumption of electrophoresis and chromatography in the break of amino acids. Is a basic of protein. Is the animal physique non capital amino acids in nutrition. At present, abounding from the beverage and abstraction of accustomed products.

Phenylthiohydantoin-phenylalanine is acclimated for the amalgam of pantothenic acerbic and electroplating, aswell acclimated in the abstraction of Microbiology and biochemistry and so on, by the hydrolysis of sericin, gelatin, zein protein and refined, aswell acclimated actinic amalgam method. Check: yield this product, and baptize to anatomy a band-aid for every 1ml absolute 20mg, attenuate band chromatography adjustment ( Appendix V B ) test, in the band-aid of 5μ L, point to G silica gel thin-layer plates, n-butyl booze - baptize - acerb acerbic ( 5:2:1 ) as developing agent, expansion, dry, in 90 C 10 account to dry, aerosol with three acetone band-aid indene ketone ( 1 →50 ), to beam the actual dehydration at 90 deg.c for 10 minutes,, should alone be a amethyst spots. Yield the artefact of about 80mg, accurately weighed, and anhydrous formic acerbic attenuated in 2ml, arctic acerb acerbic is 30ml, as abeyant titration adjustment ( Appendix VII A ), with perchloric acerbic titration band-aid ( 0.1mol/L ) titration, and will use the bare beginning arrangement results. Each 1ml perchloric acerbic titration band-aid ( 0.1mol/L ) is agnate to 8.909mg C3H7NO2.

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