Taurine CAS 107-35-7 Assay 99.0 ~ 101.0% Factory High Quality

I-Taurine (CAS: 107-35-7) Indlela yoVavanyo lweJP
I-Taurine, xa yomisiwe, iqulethe ngaphantsi kwe-99.0% kwaye ingabi ngaphezu kwe-101.0% ye-C2H7NO3S.
Inkcazo yeTaurine yenzeka njengeekristale ezingenambala okanye ezimhlophe, okanye umgubo omhlophe wekristale.
Iyanyibilika emanzini, kwaye ayinyibiliki kwi-ethanol (99.5).
I-pH yesisombululo esilungiselelwe ngokunyibilikisa i-1.0 g yeTaurine kwi-20 mL yamanzi asandul 'ukubiliswa kunye namanzi apholileyo phakathi kwe-4.1 kunye ne-5.6.
Ukuchongwa Ukumisela i-infrared absorption spectrum ye-Taurine njengoko iqondiswe kwindlela ye-potassium bromide disk phantsi kwe-Infrared Spectrophotometry <2.25>, kwaye uthelekise i-spectrum kunye ne-Reference Spectrum: zombini i-spectra ibonisa ubunzima obufanayo bokuxhamla kwiinombolo zamaza afanayo.
Ukucoceka (1) Ukucaca kunye nombala wesisombululo-Isisombululo esifunyenwe ngokuchithwa kwe-1.0 g yeTaurine kwi-20 mL yamanzi icacile kwaye ayinambala.
(2) I-Chloride <1.03>-Yenza uvavanyo nge-1.0 g yeTaurine.Lungisa isisombululo sokulawula kunye ne-0.30 mL ye-0.01mol / L i-hydrochloric acid VS (kungekho ngaphezu kwe-0.011%).
(3) Sulfate <1.14>-Yenza uvavanyo nge-2.0 g yeTaurine.Lungiselela isisombululo sokulawula kunye ne-0.40 mL ye-0.005 mol / L i-sulfuric acid VS (kungekho ngaphezu kwe-0.010%).
(4) Ammonium <1.02>-Yenza uvavanyo nge-0.25 g yeTaurine.Lungiselela isisombululo sokulawula kunye ne-5.0 mL ye-Standard Ammonium Solution (engekho ngaphezu kwe-0.02%).
(5) Izinyithi ezinzima <1.07>-Qhubeka kunye ne-2.0 g yeTaurine ngokweNdlela ye-1, kwaye wenze uvavanyo.Lungiselela isisombululo solawulo kunye ne-2.0 mL yeSisombululo esiPhambili seNkokheli (kungekho ngaphezu kwe-10 ppm).
(6) Intsimbi <1.10> -Lungisa isisombululo sovavanyo kunye ne-2.0 g yeTaurine ngokweNdlela ye-1, kwaye wenze uvavanyo ngokweNdlela ye-A. Lungisa isisombululo sokulawula kunye ne-2.0 mL ye-Standard Iron Solution (engekho ngaphezu kwe-10 ppm).
(7) Izinto ezihambelanayo-Dibanisa i-1.0 g yeTaurine kwi-50 mL yamanzi, kwaye usebenzise esi sisombululo njengesisombululo sesampuli.Umbhobho oyi-1 mL yesampulu yesisombululo, kwaye wongeze amanzi ukwenza kanye i-50mL.Umbhobho we-1 mL yesi sisombululo, yongeza amanzi ukwenza i-10 mL ngqo, kwaye usebenzise esi sisombululo njengesisombululo esiqhelekileyo.Yenza uvavanyo ngezi zisombululo njengoko kuqondiswe phantsi kwe-Thin-layer Chromatography <2.03>.I-Spot 5mL nganye yesisombululo sesampuli kunye nesisombululo esiqhelekileyo kwi-plate ye-silica gel ye-chromatography enqabileyo.Phuhlisa ipleyiti ngomxube wamanzi, i-ethanol (99.5), i-1-butanol kunye ne-acetic acid (100) (150: 150: 100: 1) ukuya kumgama omalunga ne-10 cm, kunye ne-air-dry plate.Gcoba ngokulinganayo i-ninhydrin-butanol TS kwipleyiti, kunye nobushushu kwi-105 ℃ imizuzu emi-5: indawo ngaphandle kwendawo yomgaqo kunye nesisombululo sesampuli ayikho ngaphezu kwebala elinye, kwaye ayinamandla ngaphezu kwendawo enesisombululo esiqhelekileyo. .
Ilahleko ekomisweni <2.41> Akukho ngaphezu kwe-0.20% (1 g, 105℃, iiyure ze-2).
Intsalela ekutshisweni <2.44>Akukho ngaphezu kwe-0.1% (1 g).
I-Assay Ukulinganisa ngokuchanekileyo malunga ne-0.2 g ye-Taurine, eyomisiwe ngaphambili, ichithe kwi-50 mL yamanzi, yongeza i-5 mL yesisombululo se-formaldehyde, kunye ne-titrate <2.50>kunye ne-0.1 mol / L i-sodium hydroxide VS (i-potentiometric titration).Yenza ukuzimisela okungenanto ngendlela efanayo, kwaye wenze naluphi na ulungiso oluyimfuneko.
I-mL nganye ye-0.1 mol / L i-sodium hydroxide VS ＝12.52 mg ye-C2H7NO3S
Izikhongozeli kunye nokugcinwa Izikhongozeli-Izikhongozeli ezivalwe kakuhle.

I-Taurine (i-CAS: 107-35-7) Indlela yoVavanyo lwe-USP
INGCACISO
I-Taurine iqulethe i-NLT 98.5% kunye ne-NMT 101.5% ye-taurine (C2H7NO3S), ibalwe ngokomisiweyo.
UKUCHAZA
• A. UKUFUNWA KWE-IFRARED <197K>
UVAVANYO
• UKUMISELWA KWENITROGEN, Indlela II <461>
Uhlalutyo: Qhubeka njengoko kuchaziwe kwisahluko.I-mL nganye ye-0.01 N i-asidi ye-sulfuric ilingana ne-1.25 mg ye-C2H7NO3S.
Indlela yokwamkela: 98.5% -101.5% kwisiseko esomileyo
UBUNGCOLA
• INTSALELA YOKUBASE <281>: NMT 0.3%
• I-CHLORIDE NE-SULFATE, i-Chloride <221>
Umgangatho: 0.50 mL ye-0.020 N i-hydrochloric acid
Isampuli: 0.7 g yeTaurine
Indlela yokwamkelwa: NMT 0.05%
• I-CHLORIDE NE-SULFATE, i-Sulfate <221>
Umgangatho: 0.25 mL ye-0.020 N i-asidi ye-sulfuric
Isampuli: 0.8 g yeTaurine
Indlela yokwamkelwa: NMT 0.03%
• I-IRON <241>: NMT 30 ppm
• IIMETALI EZINZIMA, Indlela I <231>: NMT 15 ppm
• IINDLELA EZINXULUMENEYO
Isisombululo esisemgangathweni: 0.05 mg / mL ye-USP Taurine RS emanzini i-concentration elinganayo malunga ne-0.5% yesisombululo seSample
Isisombululo sesampuli: 10 mg / mL yeTaurine emanzini
Inkqubo yeChromatographic
(Jonga iChromatography <621>, iChromatography eThin-Layer.)
Indlela: TLC
I-Adsorbent: 0.25-mm umaleko we-chromatographic umxube we-silica gel
Umthamo wosetyenziso: 5 µL
Ukuphuhlisa inkqubo yokunyibilikisa: I-butyl alcohol, glacial acetic acid, kunye namanzi (3:1:1)
I-reagent yokutshiza: 2 mg / mL ye-ninhydrin kumxube we-butyl alcohol kunye ne-2 N acetic acid (95: 5)
Uhlalutyo: Yomisa iplate kwi-80 ° kwi-30 min.Gcoba ipleyiti nge-Spray reagent, kwaye ushushu kwi-80 ° malunga ne-10 min.Hlola ipleyiti phantsi kokukhanya okumhlophe.[QAPHELA-Ixabiso le-RF leendawo ze-taurine kufuneka libe malunga ne-0.2.]
Iinqobo zokwamkelwa: Akukho ndawo yesibini yesisombululo seSampuli inkulu okanye inamandla kuneyona ndawo iphambili yesisombululo soMgangatho.
Ukungcola komntu ngamnye: NMT 0.5%
IIMVAVANYO EZITHILE
• UKULAHLEKO EKOMISENI <731>: Yomisa isampuli kwi-105° kangange-3 h: ilahlekelwa yi-NMT nge-0.3% yobunzima bayo.
IIMFUNO EZONGEZELELWEYO
• UKUPAKIWA NOKUGCINWA: Londoloza kwizikhongozeli ezivalwe kakuhle.
• IMIGANGATHO YE-USP REFERENCE <11>
USP Taurine RS