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

Taurine (CAS: 107-35-7) JP Test Method
Taurine, kana yakaomeswa, ine kwete pasi pe99.0% uye kwete kupfuura 101.0% yeC2H7NO3S.
Tsanangudzo Taurine inoitika seisina ruvara kana chena makristasi, kana chena crystalline poda.
Inonyungudika mumvura, uye isingaite mu ethanol (99.5).
Iyo pH yemushonga wakagadzirirwa nekunyungudutsa 1.0 g yeTaurine mu20 mL yemvura ichangobva kubikwa uye yakatonhodzwa iri pakati pe4.1 ne5.6.
Kuzivikanwa Sarudza iyo infrared absorption spectrum yeTaurine sezvakarairwa mu potassium bromide disk nzira pasi peInfrared Spectrophotometry <2.25>, uye enzanisa spectrum neReferensi Spectrum: zvose zvinoratidzira zvinoratidzira kusimba kwakafanana kwekunyura pamafungu akafanana.
Kuchena (1) Kujeka uye ruvara rwemhinduro-Mushonga unowanikwa nekunyungudutsa 1.0 g yeTaurine mu 20 mL yemvura yakajeka uye isina ruvara.
(2) Chloride <1.03>-Ita muedzo ne 1.0 g yeTaurine.Gadzirira mhinduro yekudzora ne 0.30 mL ye0.01mol/L hydrochloric acid VS (kwete kupfuura 0.011%).
(3) Sulfate <1.14> -Ita muedzo ne 2.0 g yeTaurine.Gadzirira mhinduro yekudzora ne 0.40 mL ye0.005 mol/L sulfuric acid VS (kwete kupfuura 0.010%).
(4) Ammonium <1.02>-Ita muedzo ne 0.25 g yeTaurine.Gadzirira mhinduro yekutonga ne 5.0 mL yeStandard Ammonium Solution (kwete kupfuura 0.02%).
(5) Heavy metals <1.07>-Enda ne 2.0 g yeTaurine maererano neMethod 1, uye ita muedzo.Gadzirira mhinduro yekutonga ne 2.0 mL yeStandard Lead Solution (kwete kupfuura 10 ppm).
(6) Iron <1.10> -Gadzirira mhinduro yekuedza ne 2.0 g yeTaurine maererano neMethod 1, uye ita muedzo maererano neMethod A. Gadzirira sarudzo yekugadzirisa ne 2.0 mL yeStandard Iron Solution (kwete kupfuura 10 ppm).
(7) Zvinhu zvinoenderana-Dissolve 1.0 g yeTaurine mu 50 mL yemvura, uye shandisa iyi mhinduro semuenzaniso wekugadzirisa.Pombi 1 mL yemushonga wemuyedzo, wobva wawedzera mvura kuita 50mL chaiyo.Pombi 1 mL yemushonga uyu, wedzera mvura kuita 10 mL chaiyo, uye shandisa mhinduro iyi seyakajairwa mhinduro.Ita bvunzo nemhinduro idzi sekurairwa pasi peThin-layer Chromatography <2.03>.Spot 5mL imwe neimwe yemhinduro yemuenzaniso uye yakajairwa mhinduro pandiro yesilica gel kune yakatetepa-layer chromatography.Gadzira ndiro nemusanganiswa wemvura, ethanol (99.5), 1-butanol uye acetic acid (100) (150:150:100:1) kusvika kure nemasendimita gumi, uye mhepo-inoomesa ndiro.Pfaya zvakaenzana ninhydrin-butanol TS mundiro, uye kupisa pa105 ℃ kwemaminitsi mashanu: nzvimbo kunze kweiyo nheyo ine mhinduro yemuenzaniso haisi kupfuura imwe nzvimbo, uye haina kusimba kupfuura nzvimbo ine yakajairwa mhinduro. .
Kurasikirwa pakuomeswa <2.41> Kwete kupfuura 0.20% (1 g, 105℃, maawa maviri).
Zvisaririra pakubatidza <2.44>Kwete kupfuura 0.1% (1 g).
Assay Kuyera zvakarurama nezve 0.2 g yeTaurine, yakamboomeswa, yakanyunguduka mu 50 mL yemvura, wedzera 5 mL ye formaldehyde solution, uye titrate <2.50>ne 0.1 mol / L sodium hydroxide VS (potentiometric titration).Ita chisungo chisina chinhu nenzira imwechete, uye ita chero kururamisa kunodiwa.
Imwe mL ye0.1 mol/L sodium hydroxide VS ＝12.52 mg yeC2H7NO3S
Midziyo uye storageContainers-Zvakanaka-yakavharwa midziyo.

Taurine (CAS: 107-35-7) USP Test Method
DEFINITION
Taurine ine NLT 98.5% uye NMT 101.5% yetaurine (C2H7NO3S), yakaverengerwa payakaomeswa.
KUZIVA
• A. INFRARED ABSORPTION <197K>
ASSAY
• NITROGEN DETERMINATION, Nzira II <461>
Ongororo: Enderera mberi sekurairwa muchitsauko.Imwe mL ye0.01 N sulfuric acid yakaenzana ne1.25 mg yeC2H7NO3S.
Maitiro ekugamuchira: 98.5% -101.5% pane yakaomeswa hwaro
KUSIRIRA
• ZVINOSARA PAKUBATIDZA <281>: NMT 0.3%
• CHLORIDE NESULFATE, Chloride <221>
Chiyero: 0.50 mL ye0.020 N hydrochloric acid
Muenzaniso: 0.7 g yeTaurine
Maitiro ekugamuchira: NMT 0.05%
• CHLORIDE NESULFATE, Sulfate <221>
Chiyero: 0.25 mL ye0.020 N sulfuric acid
Muenzaniso: 0.8 g yeTaurine
Maitiro ekugamuchira: NMT 0.03%
• IRON <241>: NMT 30 ppm
• METARI ZVIKURU, Nzira I <231>: NMT 15 ppm
• RELAM COMPOUNDS
Yakajairwa mhinduro: 0.05 mg/mL yeUSP Taurine RS mumvura chiyero chakaenzana che 0.5% yeSample solution.
Sample solution: 10 mg/mL yeTaurine mumvura
Chromatographic system
(Ona Chromatography <621>, Thin-Layer Chromatography.)
Modhi: TLC
Adsorbent: 0.25-mm layer yechromatographic silica gel musanganiswa
vhoriyamu yekushandisa: 5 µL
Kugadzira solvent system: Butyl doro, glacial acetic acid, uye mvura (3: 1: 1)
Spray reagent: 2 mg/mL yeninhydrin mumusanganiswa webutyl doro uye 2 N acetic acid (95:5)
Kuongorora: Pukuta ndiro pa 80 ° ye 30 min.Pfaya ndiro yacho neSpray reagent, wopisa pa80 ° kwemaminitsi gumi.Ongorora ndiro pasi pechiedza chichena.[Cherechedza-Kukosha kweRF kwenzvimbo dzetaurine kunofanirwa kunge kuri 0.2.]
Maitiro ekugamuchira: Hapana yechipiri nzvimbo yeSample mhinduro yakakura kana yakanyanya kusimba kupfuura iyo yakakosha nzvimbo yeStandard solution.
Kusachena kwemunhu: NMT 0.5%
ZVIYEDZO ZVAKANAKA
• KURASUKA PAKUOMESA <731>: Pukuta sampuli pa105° kwe3 h: inorasikirwa neNMT 0.3% yehuremu hwayo.
ZVIMWE ZVINODIWA
• KUPAKA UYE KUCHENGETA: Chengetedza mumidziyo yakavharwa zvakanaka.
• USP REFERENCE ZVINHU <11>
USP Taurine RS