D-Tryptophan CAS 153-94-6 (HD-Trp-OH) 98.5 ~ 101.0% Factory

Acidity
Ɗauki 1g na wannan samfurin, ƙara 50ml na ruwa don narkewa, kuma auna bisa ga doka (General Dokokin 5.4).Matsakaicin pH ya kamata ya zama 5.4 ~ 6.4.
Watsawa da mafita
Ɗauki 0.5g na wannan samfurin, ƙara 2mol/L hydrochloric acid bayani 20ml don narke, bisa ga ultraviolet-bayyanar da spectrophotometry (General law 0401), auna watsawa a 430nm zangon, ba kasa da 95.0%.
Chloride
Ɗauki 0.25g na wannan samfurin kuma duba shi bisa ga doka (Gaba ɗaya doka 0801).Idan aka kwatanta da maganin kulawa da aka yi da 0.02% na daidaitaccen maganin sodium chloride, bai kamata ya kasance mai da hankali ba ().
Sulfate
Ɗauki l.0g na wannan samfurin kuma duba shi bisa ga doka (Gaba ɗaya doka 0802).Idan aka kwatanta da maganin kulawa da aka yi da 0.02% na daidaitaccen bayani na potassium sulfate, bai kamata ya kasance mai da hankali ba ().
Ammonium gishiri
Ɗauki 0.10g na wannan samfurin kuma duba shi bisa ga doka (Gaba ɗaya doka 0808).Idan aka kwatanta da maganin kulawa da aka yi da 0.02% na daidaitaccen maganin ammonium chloride, ba zai zama mai zurfi ba ().
Sauran Amino Acids
Ɗauki 0.30g na wannan samfurin, saka shi a cikin gilashin ma'auni na 20ml, ƙara 1 mol / L hydrochloric acid bayani 1 ml da ruwa don narkewa, tsarma da ruwa zuwa ma'auni, girgiza da kyau, a matsayin maganin gwaji;sai a dauki ml 1 daidai, sai a saka a cikin filo mai aunawa 200ml, sai a tsoma shi da ruwa, a girgiza sosai, sannan a yi amfani da shi a matsayin maganin sarrafawa.Ɗauki 10mg na sarrafa tryptophan da sarrafa tyrosine, sannan a saka shi a cikin kwalban aunawa na 25ml iri ɗaya, 1 ml na 1 mol/L hydrochloric acid bayani da kuma adadin ruwa da ya dace don narkar da maganin.An narkar da maganin zuwa ma'auni tare da ruwa sannan a girgiza don samar da mafita mai dacewa ga tsarin.Bisa ga gwajin chromatography na bakin ciki (General 0502), sha mafita guda uku na sama kowane 2 μL, bi da bi, a kan silica gel G bakin bakin ciki farantin, tare da n-butanol-glacial acetic acid-ruwa (3:1:1). don yadawa, yadawa, bushewa, fesa da ninhydrin a cikin maganin acetone (1-50), zafi a 80 ℃ har sai * batu ya bayyana, kuma duba nan da nan.Maganin sarrafawa ya kamata ya nuna tabo mai haske, kuma tsarin da ya dace ya kamata ya nuna tabo guda biyu gaba ɗaya.Idan maganin gwajin ya nuna alamun rashin tsabta, launi bai kamata ya kasance mai zurfi (0.5%) fiye da babban wurin maganin sarrafawa ba.
Asara akan bushewa
Ɗauki wannan samfurin, bushe a 105 ℃ na tsawon sa'o'i 3, asarar nauyi ba zai wuce 0.2% ba (Dokar Janar 0831).
Ragowa akan Ignition
Ɗauki 1.0g na wannan samfurin kuma duba shi bisa ga doka (Gaba ɗaya doka 0841).Ragowar hagu kada ta wuce 0.1%.
Iron Gishiri
A samu wannan samfurin 1.0g bayan konawa da toka, sai a zuba hydrochloric acid (2ml) a cikin ragowar, a busar da shi a kan ruwan wanka, sannan a zuba ruwa mai dumi (4ml), sai a narkar da shi da zafi kadan, a zuba ruwa (30ml) da ammonium persulfate. (50mg), kuma duba shi bisa ga doka (Gaba ɗaya doka 0807), bai kamata ya kasance mai zurfi (0.002%) fiye da maganin sarrafawa da aka yi da daidaitaccen maganin ƙarfe.
Karfe masu nauyi
Ragowar da aka bari a ƙarƙashin abin shan ragowar ƙonewa ba zai ƙunshi fiye da sassa 10 a kowace miliyan na ƙarfe mai nauyi ba lokacin da doka ta bincika (General Principles 0821, Law II).
Gishiri arsenic
Ɗauki 2.0g na wannan samfurin, ƙara 5ml na hydrochloric acid da 23ml na ruwa don narkar da, duba bisa ga doka (General law 0822 first law), ya kamata ya bi tanadi (0.0001%).
Bacterial Endotoxin
dauki wannan samfurin, ƙara ɗan adam gwajin gwajin endotoxin, da zafi zuwa 80 ℃ don narkar da shi, duba bisa ga doka (General 1143), kowane lg na tryptophan dauke da endotoxin ya zama kasa da 50EU.(Don allura)
Ƙaddamar da abun ciki
Ɗauki wannan samfurin game da 0.15g, ma'auni daidai, ƙara anhydrous formic acid 3ml narkar da, ƙara glacial acetic acid 50ml, bisa ga yuwuwar titration Hanyar (General 0701), tare da hydrochloric acid titration bayani (0.1 mol/L) titration, da kuma An gyara sakamakon titration tare da gwaji mara kyau.Kowane 1 ml na maganin titration perchloric acid (0.1 mol/L) yayi daidai da 20.42mg na C11H12N2O2.