L-Aspartic Acid CAS 56-84-8 (H-Asp-OH) Assay 98.5 ~ 101.0% Warshada Tayada Sare

L-aspartic acid, marka la qalajiyo, waxa ku jira wax aan ka yarayn 98.5% kana badnayn 101.0% L-Aspartic Acid (C4H7NO4).
Sharaxaada L-Aspartic Acid waxay u dhacdaa sida cad, crystals orcrystalline budada.Waxay si yar ugu milmaysaa biyaha, iyo ficil ahaan aan lagu milmi karin ethanol (99.5).Waxay ku milantaa aashitada hydrochloric-ka-dirirka ah iyo 0.2 mol/L sodium hydroxide TS.
Aqoonsiga Go'aami nooca nuugista infrared ee L-Aspartic Acid sida lagu hago habka potassium bromide disk ee hoos yimaada Infrared Spectrophotometry <2.25>, oo barbar dhig spectrum iyo Spectrum tixraaca: labaduba waxay muujinayaan xoojinta nuugista isku midka ah ee tirooyinka hirarka isku midka ah.
Wareegga indhaha <2.49> [a] 20D: +24.0~+26.0° (2 g, qalajinta ka dib, 6 mol/L hydrochloric acid TS, 25 ml, 100 mm).
pH <2.54> Ku mil 0.4 g oo L-Aspartic Acid 100 ml oo biyo ah adoo kululaynaya, una ogolow inuu qaboojiyo: inta u dhaxaysa 2.5 iyo 3.5.
Nadiif (1) Cadnaanta iyo midabka xalka-Mila 1.0 g ee L-Aspartic Acid 20 mL ee 1 mol/L hydrochloric acid TS: xalku waa cad yahay oo aan midab lahayn.
2Ku diyaari xalka xakamaynta 0.30 ml oo ah 0.01 mol/L hydrochloric acid VS (aan ka badnayn 0.021%).
(3) Sulfate <1.14>-Mila 0.6 g oo L-Aspartic Acid ah 5 mL oo ah labeenta hydrochloric acid iyo 30 ml oo biyo ah, ku dar biyo si aad u samayso 45 mL, kuna dar 5 mL oo ah barium chloride TS.Ku samee tijaabada xalkan oo ah xalka tijaabada.Ku sii diyaari xalka kantaroolka 0.35 mL oo ah 0.005 mol/L sulfuric acid VS, ku dar 5 mL oo ah hydrochloric acid dilute iyo biyo si aad u samayso 45 mL, kuna dar 5 mL oo ah barium chloride (aan ka badnayn 0.028 ~).
(4) Ammonium<1.02>—Ku samee tijaabada 0.25 g oo ah L-Aspartic Acid.Ku diyaari xalka xakamaynta 5.0 mL ee Heerka Ammonium Solution (aan ka badnayn 0.02z)
(5) Biraha culus <1.07>- Ku sii wad 1.0 g oo L-Aspartic Acid sida waafaqsan Habka 4, oo samee tijaabada.Ku diyaari xalka xakamaynta 1.0 mL ee Xalka Lead Heerka (aan ka badnayn 10 ppm).
(6) Iron <1.10>-Ku diyaari xalka tijaabada leh 1.0 g of L-Aspartic Acid sida waafaqsan Habka 1, oo samee xiniinyaha habka A. Diyaari xalka xakamaynta 1.0 mL ee Xalka Birta caadiga ah (aan ka badnayn 10). ppm).
(7) Walxaha laxidhiidha-Mila 0.20 g ee L-AsparticAcid gudaha 10 mL ee 0.2 mol/L sodium hydroxide TS, oo u isticmaal xalkan sida xalka muunada.Dhuumaha 1 mL ee xalka muunada, ku dar biyo si aad u samayso 10 ml oo sax ah.Pipet 1 mLof xalkan, ku dar biyo si aad u samayso 50 ml oo sax ah, oo u isticmaal xalkan sida xalka caadiga ah.Ku samee tijaabada xalalkan sida lagu faray Chromatogra-phy ee khafiifka ah<2.03>.Baro 5mL mid kasta oo ka mid ah muunada muunada iyo xalalka taagan ee saxan silica gel ah oo loogu talagalay chromatog-raphy khafiif ah, ku samee isku dar ah 1-butanol, biyo iyo aceticacid (100) (3: 1: 1) fogaan ah ilaa 10 cm, oo saxanka ku qalaji 809C 30 daqiiqo.Si siman ugu buufi xalinta nin-hydrin isku dar ah methanol iyo acetic acid (100) (97:3)(1 100kiiba), kuleyli 80℃ 10 daqiiqo: barta aan ahayn meesha ugu muhiimsan ee laga helay muunada xalku kama badna meesha lagu helay xalka caadiga ah.
Luminta qallajinta <2.41> In aan ka badnayn 0.30% (1 g, 105 ℃, 3 saacadood).
Hadhaaga dabka <2.44> In aan ka badnayn 0.1% (1 g).
Assay Si sax ah u miisaan qiyaastii 0.15 g oo ah L-Aspartic Acid, oo hore loo qalajiyey, ku milmi 50 ml oo biyo ah adoo kululaynaya.Kadib qaboojinta, titrate <2.50> oo leh 0.1 mo/L sodium hydroxide VS (titration potentiometric).U samee go'aan madhan si la mid ah, oo samee wixii sixid ah oo lagama maarmaan ah.
ML kasta oo ah 0.1 mol/L sodium hydroxide VS ＝13.31 mg oo ah C4H7NO4
Weelasha iyo weelasha kaydinta - weelasha adag.