L-Valine CAS 72-18-4 (H-Val-OH) Qiimaynta 98.5 ~ 101.0% Warshada Tayada Sare

L-Valine (H-Val-OH) (CAS: 72-18-4) AJI 97 Habka Imtixaanka
Aqoonsiga: Is barbar dhig nooca nuugista infrared-ka ee muunada iyo kan heerka caadiga ah ee habka saxanka bromide ee potassium.
Wareegga Gaarka ah [α]20/D: Muunad la qallajiyey, C=8, 6mol/L HCl
Xaaladda Xalka ( Gudbinta): 0.5g gudaha 20ml ee H2O, spectrophotometer, 430nm, 10mm dhumucda unugga.
Chloride (Cl): 0.7g, A-1, tixraac: 0.40ml ee 0.01mol/L HCl
Ammonium (NH4): B-2
Sulfate (SO4): 1.2g, (1), tixraac: 0.50ml ee 0.005mol/L H2SO4
Birta (Fe): 1.5g, (2), tixraac: 1.5ml ee Iron Std.(0.01mg/ml)
Biraha culus (Pb): 2.0g, (2), tixraac: 2.0ml ee Pb Std.(0.01mg/ml)
Arsenic (As2O3): 2.0g, (2), tixraac: 2.0ml ee As2O3 Std.
Asiidhyada Amino Asiidhyada kale: Ku milmaan ammonia R2 Tusaalaha Tijaabada: 50μg, F-6-a, xakamaynta: L-Tyr 0.25μg
Luminta qallajinta: at 105 ℃ 3 saacadood.
Hadhaaga dabka (Sulfated): AJI Test 13
Qiimaynta: Muunad qallalan, 120mg, (1), 3ml of formic acid, 50ml of glacial acetic acid, 0.1mol/L HCLO4 1ml=11.715mg C5H11NO2
Tijaabada pH: 1.0g gudaha 20ml ee H2O

L-Valine (H-Val-OH) (CAS: 72-18-4)Habka Tijaabada JP16
L-Valine, marka la qalajiyo, waxay ka kooban tahay wax aan ka yarayn 98.5% ee C5H11NO2.
Sharaxaada L-Valine waxay u dhacdaa sida kiristaalo cad ama budada crystalline.Waa mid aan ur lahayn ama uu leeyahay ur sifada ah oo daciif ah, wuxuuna leeyahay dhadhan yar oo macaan, kaas oo noqda qadhaadh.
Waxay si xor ah ugu milmaysaa aashitada formic, waxay ku milmi kartaa biyaha, iyo ficil ahaan aan lagu milmi karin ethanol (95).
Waxay ku milantaa hydrochloric acid.
Aqoonsiga Go'aami nooca nuugista infrared ee L-Valine, oo hore loo qalajiyey, sida lagu faray habka potassium bromide disk ee hoos yimaada Infrared Spectrophotometry <2.25>, oo barbar dhig spectrum iyo Spectrum Tixraaca: labada spectra waxay muujinayaan xoojinta nuugista isku midka ah ee tirooyinka hirarka isku midka ah. .
Wareegga indhaha <2.49> [a] 20D: +26.5°~+29.0° (ka dib qalajinta, 2 g, 6 mol/L hydrochloric acid TS, 25 mL, 100 mm).
pH <2.54> Ku mil 0.5 g oo L-Valine ah 20 ml oo biyo ah: pH ee xalkani waxa uu u dhexeeyaa 5.5 iyo 6.5.
Nadiif (1) Caddayn iyo midabka xalka Ku milmaan 0.5 g oo L-Valine ah 20 ml oo biyo ah: xalku waa cad yahay oo aan midab lahayn.
(2) Chloride <1.03>-Ku samee tijaabada 0.5 g oo L-Valine ah.Ku diyaari xalka xakamaynta 0.30 ml oo ah 0.01mol/L hydrochloric acid VS (aan ka badnayn 0.021%).
(3) Sulfate <1.14> -Ku samee tijaabada 0.6 g oo L-Valine ah.Ku diyaari xalka xakamaynta 0.35 mL ee 0.005mol/L sulfuric acid VS (aan ka badnayn 0.028%).
(4) Ammonium <1.02>-Ku samee tijaabada 0.25 g oo L-Valine ah.Ku diyaari xalinta xakamaynta 5.0 mL ee Heerka Ammonium Solution (aan ka badnayn 0.02%).
(5) Biraha culus <1.07>- Ku sii wad 1.0 g oo L-Valine sida waafaqsan Habka 1, oo samee tijaabada.Ku diyaari xalka xakamaynta 2.0 mL ee Xalka Lead Heerka (aan ka badnayn 20 ppm).
(6) Arsenic <1.11>- Ku sii wad 1.0g ee L-Valine, u diyaari xalka tijaabada si waafaqsan Habka 2, oo samee tijaabada (aan ka badnayn 2 ppm).
(7) Walxaha la xidhiidha-Ku mil 0.10 g oo L-Valine ah 25mL oo biyo ah, oo u isticmaal xalkan sidii xal muunada.Tuub 1 ml oo ah xalka muunada, kuna dar biyo si aad u samayso 50 ml oo sax ah.Dhuumaha 5 mL ee xalkan, ku dar biyo si aad u samayso 20 ml oo sax ah, oo u isticmaal xalkan sida xalka caadiga ah.Ku samee tijaabada xalalkan sida lagu faray Chromatography-ka khafiifka ah <2.03>.Bar 5mL mid kasta oo ka mid ah muunadda muunada iyo xalalka caadiga ah saxan jel silica ah oo loogu talagalay chromatography-ka khafiifsan.Ku samee saxanka iskudhafka 1-butanol, biyo iyo acetic acid (100) (3: 1: 1) ilaa 10 cm, oo qalaji saxanka 80 ℃ 30 daqiiqo.Ku buufi si siman xal ninhydrin ah oo acetone ah (1 50kiiba) saxanka dushiisa, kuna kulayl 80 ℃ 5 daqiiqo: dhibco kale oo aan ka ahayn meesha ugu muhiimsan ee xalinta muunada kama badna meesha 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 0.12 g oo L-Valine ah, oo hore loo qalajiyey, oo ku milmi 3 mL oo ah acid formic, ku dar 50 mL oo acetic acid (100), iyo titrate <2.50> oo leh 0.1 mol/L perchloric acid VS (titration potentiometric) .Samee go'aan maran, oo samee sixid kasta oo lagama maarmaan ah.
ml kasta oo ah 0.1 mol/L perchloric acid VS ＝11.72 mg of C5H11NO2
Weelasha iyo weelasha kaydinta - weelasha adag.