L-(-)-Tyrosine CAS 60-18-4 (H-Tyr-OH) Mayeso 98.5~101.5% Factory High Quality

L-(-)-Tyrosine (H-Tyr-OH) (CAS: 60-18-4) AJI 97 Njira Yoyesera
Chizindikiritso: Fananizani kuchuluka kwa mayamwidwe a infrared a chitsanzo ndi njira ya potaziyamu bromide disc.
Kuzungulira Kwapadera [α]20/D: Zitsanzo Zouma, C=5, 1mol/L HCl
State of Solution (Transmittance): 0.5g mu 10ml ya 1mol/L HCl, spectrophotometer, 430nm, 10mm selo makulidwe.
Chloride (Cl): 0.7g, A-1, ref: 0.40ml ya 0.01mol/L HCl
Ammonium (NH4): B-2
Sulfate (SO4): 1.2g, (1), ref: 0.50ml ya 0.005mol/L H2SO4
Chitsulo (Fe): 1.5g, (2), ref: 1.5ml ya Iron Std.(0.01mg/ml)
Zitsulo Zolemera (Pb): 2.0g, (2), ref: 2.0ml ya Pb Std.(0.01mg/ml)
Arsenic (As2O3): 2.0g, (2), ref: 2.0ml ya As2O3 Std.
Ma Amino Acid Ena: Dilute ammonia R2 Test Chitsanzo: 50μg, F-6-a, control: L-Tyr 0.25μg
Kutaya pa Kuyanika: pa 105 ℃ kwa maola atatu.
Zotsalira pa Ignition (Sulfated): AJI Test 13
Kuyesa: Zitsanzo zouma, 180mg, (1), 6ml ya formic acid, 50ml ya glacial acetic acid, 0.1mol/L HCLO4 1ml = 18.119mg C9H11NO3
Mayeso a pH: 0.02g mu 100ml wothira madzi amadzimadzi

L-(-)-Tyrosine (H-Tyr-OH) (CAS: 60-18-4) USP35 Njira Yoyesera
TANTHAUZO
Tyrosine ili ndi NLT 98.5% ndi NMT 101.5% ya L-Tyrosine (C9H11NO3), yowerengedwa pa maziko owuma.
CHIZINDIKIRO
A. KUYAMBIRA KWA INFRARED <197K>
ZOYESA
NTCHITO
Chitsanzo: 180 mg ya Tyrosine
Chopanda kanthu: Sakanizani 6 mL ya formic acid ndi 50 ml ya glacial acetic acid.
Titrimetric system
(Onani Titrimetry <541>)
Mode: Direct titration
Titrant: 0.1 N perchloric acid VS
Kuzindikira komaliza: Potentiometric
Kusanthula: Sungunulani Chitsanzo mu 6 mL ya formic acid ndi 50mL ya glacial acetic acid, ndi titrate ndi Titrant.Chitani kutsimikiza kopanda kanthu.
Werengani kuchuluka kwa tyrosine (C9H11NO3) mu Zitsanzo zomwe zatengedwa:
Zotsatira = {[(VS-VB) x N x F]/W} x100
VS = kuchuluka kwa Titrant kudyedwa ndi Zitsanzo (mL)
VB = kuchuluka kwa Titrant kudyedwa ndi Chopanda kanthu (mL)
N = chizolowezi chenicheni cha Titrant (mEq/mL)
F= chinthu chofanana, 181.2 mg/mEq
W = kulemera kwachitsanzo (mg)
Njira zolandirira: 98.5% ~ 101.5% pazowuma
ZOCHITSA
KUYATSA ZOKHALA <281>: NMT 0.4%
CHLORIDE NDI SULFATE, Chloride <221>
Njira yothetsera: 0.20mL ya 0.020 N hydrochloric acid
Chitsanzo: 0,35 g ya Tyrosine.[Dziwani-Ngati kuli kofunikira, sungunulani Chitsanzocho potenthetsa pafupi kuwira ndi kuwonjezera 1 mL ya nitric acid.]
Njira zolandirira: NMT 0.04%
CHLORIDE NDI SULFATE, Sulfate <221>
Njira yothetsera: 0.50mL ya 0.020 N sulfuric acid
Chitsanzo: 1.2 g ya Tyrosine.[Dziwani-Ngati kuli kofunikira, sungunulani Chitsanzocho powonjezera 6mL ya diluted hydrochloric acid.]
Njira zolandirira: NMT 0.04%
IRON <241>: NMT 30ppm [Dziwani-Ngati kuli kofunikira, gwiritsani ntchito 2 mL ya hydrochloric acid kuti musungunule Chitsanzo.]
ZINTHU ZONSE, Njira I <231>: NMT 15ppm
ZOKHUDZANA NDI COMPOUNDS
Njira yothetsera ammonia: Sungunulani 16 ml ya ammonia woyikira ndi madzi mpaka 100 ml.
Sungunulani 10 mg ya USP L-Tyrosine RS ndi 10 mg ya USP L-Phenylalanine RS mu 1 mL ya Diluted ammonia solution, ndi kusungunula ndi madzi mpaka 25.0 ml.
Yankho lokhazikika: Mu botolo loyenera, sungunulani kuchuluka kwa USP L-Tyrosine RS mu 1 mL ya Diluted ammonia solution.Sungunulani ndi madzi mpaka voliyumu kuti mupeze yankho la 0.05mg/mL.[Dziwani-Yankho ili lili ndi ndende yofanana ndi 0.5% ya yankho la Zitsanzo.]
Yankho lachitsanzo: Tumizani 0.1 g ya Tyrosine mu botolo la 10-mL volumetric, onjezerani yankho lokwanira la Diluted ammonia kuti lisungunuke, ndi kusungunula ndi madzi mpaka kuchuluka kwake.
Chromatographic system (Onani Chromatography <621>, Thin-Layer Chromatography.)
Njira: TLC
Adsorbent: 0.25-mm wosanjikiza wa chromatographic silica gel osakaniza
Kuchuluka kwa ntchito: 5μL
Kupanga zosungunulira: Isopropyl mowa ndi ammonium hydroxide (7:3)
Utsi wopopera: 2 mg/mL wa ninhydrin wosakaniza wa mowa wa butyl ndi 2N acetic acid (95:5)
Kuyenerera kwadongosolo
Zofunika pazabwino: Chromatogram ya njira yothetsera kukwanira kwa System imawonetsa mawanga awiri olekanitsidwa bwino.
Kusanthula
Zitsanzo: Njira yothetsera kuyenerera kwadongosolo, yankho lokhazikika, ndi yankho lachitsanzo.
Yanikani mbale pakati pa 100 ° ndi 105 ° mpaka ammonia itatha.Utsi ndi Spray reagent, ndi kutentha pakati pa 100 ° ndi 105 ° kwa mphindi 15.Yang'anani mbaleyo pansi pa kuwala koyera.
Njira zolandirira: Malo aliwonse achiwiri a Sample solution si aakulu kapena okulirapo kuposa malo oyambira a Standard solution.
Zodetsedwa Payekha Payekha: NMT 0.5%
Zonyansa zonse: NMT 2.0%
MAYESO AKE
KUSINTHA KWA MASO, Kuzungulira Kwachindunji <781S>
Yankho lachitsanzo: 50 mg/mL mu 1 N hydrochloric acid
Zovomerezeka zovomerezeka: -9.8 ° mpaka -11.2 °
LOSSON PAKUYANTHA <731>: Yanikani chitsanzo pa 105℃ kwa 3 h: imataya NMT 0.3% ya kulemera kwake.
ZOWONJEZERA ZOFUNIKA
KUPAKA NDI KUSEKA: Sungani m’zotengera zotsekedwa bwino.
MFUNDO ZA USP REFERENCE <11>
USP L-Phenylalanine RS
USP L-Tyrosine RS