Taurine CAS 107-35-7 Assay 99.0 ~ 101.0% Ụlọ ọrụ dị elu

Taurine (CAS: 107-35-7) Usoro ule JP
Taurine, mgbe akpọnwụwo, nwere ihe na-erughị 99.0% na ọ bụghị karịa 101.0% nke C2H7NO3S.
Nkọwa Taurine pụtara dị ka kristal na-enweghị agba ma ọ bụ na-acha ọcha, ma ọ bụ ntụ ntụ kristal ọcha.
Ọ na-agbaze n'ime mmiri, yana ọ fọrọ nke nta ka ọ ghara ịsacha ya na ethanol (99.5).
pH nke ngwọta a kwadebere site na igbari 1.0 g nke Taurine na 20 ml nke mmiri esichara ọhụrụ ma dị mma dị n'etiti 4.1 na 5.6.
Chọpụta ụdịdị dị iche iche absorption infrared nke Taurine dị ka eduzi ya na usoro potassium bromide disk n'okpuru Infrared Spectrophotometry <2.25>, ma tụle ụdịdị dị iche iche na Spectrum Reference: ụdịdị abụọ ahụ na-egosipụta ike nke absorption n'otu ọnụọgụ ebili mmiri.
Ịdị ọcha (1) Ịdị ọcha na agba nke ngwọta-Ngwọta nke enwetara site na igbari 1.0 g nke Taurine na 20 ml mmiri doro anya na enweghị agba.
(2) Chloride <1.03>-Mee ule na 1.0 g nke Taurine.Kwadebe ngwọta nchịkwa na 0.30 ml nke 0.01mol / L hydrochloric acid VS (ọ bụghị karịa 0.011%).
(3) Sulfate <1.14> - Mee ule na 2.0 g nke Taurine.Kwadebe ngwọta nchịkwa na 0.40 ml nke 0.005 mol / L sulfuric acid VS (ọ bụghị karịa 0.010%).
(4) Ammonium <1.02> - Mee ule na 0.25 g nke Taurine.Kwadebe ngwọta nchịkwa na 5.0 ml nke Standard Ammonium Solution (ọ bụghị karịa 0.02%).
(5) Ọla dị arọ <1.07>-Gaa na 2.0 g nke Taurine dị ka usoro 1 si dị, ma mee ule ahụ.Kwadebe ngwọta nchịkwa na 2.0 ml nke Standard Lead Solution (ọ bụghị karịa 10 ppm).
(6) Iron <1.10> - Kwadebe ihe ngwọta ule na 2.0 g nke Taurine dị ka usoro 1 si dị, ma mee nyocha ahụ dịka usoro A. Kwadebe ngwọta nchịkwa na 2.0 mL nke Standard Iron Solution (ọ bụghị karịa 10 ppm).
(7) Ihe ndị metụtara ya - gbazee 1.0 g nke Taurine na 50 ml mmiri, ma jiri ngwọta a dị ka ihe ngwọta nlele.Pipet 1 mL nke ngwọta nlele, ma gbakwunye mmiri iji mee kpọmkwem 50 ml.Pipet 1 ml nke ihe ngwọta a, gbakwunye mmiri iji mee kpọmkwem 10 ml, ma jiri ngwọta a dị ka ọkọlọtọ ọkọlọtọ.Jiri ngwọta ndị a mee nnwale ahụ dị ka a gwara gị n'okpuru Chromatography nke Thin-Layer <2.03>.Kpatụ 5mL nke ọ bụla n'ime ihe nlele nlele yana ngwọta ọkọlọtọ na efere silica gel maka chromatography nke dị obere.Mepụta efere ahụ na ngwakọta mmiri, ethanol (99.5), 1-butanol na acetic acid (100) (150:150:100:1) ruo ihe dị ka 10 cm n'ebe dị anya, ma kpoo efere ahụ.Fesa evenly ninhydrin-butanol TS na efere, na okpomọkụ na 105 ℃ maka 5 nkeji: ntụpọ ọzọ karịa ụkpụrụ ntụpọ na sample ngwọta bụ ihe karịrị otu ntụpọ, na ọ bụghị ihe siri ike karịa ntụpọ na ọkọlọtọ ngwọta. .
Ọnwụ na ihicha <2.41> Ọ bụghị ihe karịrị 0.20% (1 g, 105 ℃, 2 awa).
Ihe fọdụrụ na mgbanye <2.44>Ọ bụghị karịa 0.1% (1 g).
Assay Weigh n'ụzọ ziri ezi banyere 0.2 g nke Taurine, nke a mịrị amị, gbarie na 50 ml mmiri, tinye 5 ml nke formaldehyde ngwọta, na titrate <2.50>na 0.1 mol / L sodium hydroxide VS (potentiometric titration).Mee mkpebi efu n'otu ụzọ ahụ, ma mee mgbazi ọ bụla dị mkpa.
Otu ml nke 0.1 mol/L sodium hydroxide VS ＝12.52 mg nke C2H7NO3S
Igbe na ebe nchekwa ihe-akwa mechiri emechi nke ọma.

Taurine (CAS: 107-35-7) Ule ule USP
Nkọwa
Taurine nwere NLT 98.5% na NMT 101.5% nke taurine (C2H7NO3S), gbakọọ na ntọala akpọnwụwo.
Nchọpụta
• A. INFRARED ABSORPATION <197K>
ASSAY
• MKPEBI NITROGEN, Usoro II <461>
Nyocha: Gaa n'ihu dị ka a gwara ya n'isiakwụkwọ.ML ọ bụla nke 0.01 N sulfuric acid bụ 1.25 mg nke C2H7NO3S.
Usoro nnabata: 98.5% -101.5% na ntọala akpọnwụwo
IHE adịghị ọcha
• Nkwụsị n'ọkụ <281>: NMT 0.3%
• chloride na sulfate, Chloride <221>
Ọkọlọtọ: 0.50 ml nke 0.020 N hydrochloric acid
Ihe atụ: 0,7 g nke Taurine
Usoro nnabata: NMT 0.05%
• chloride na sulfate, sulfate <221>
Ọkọlọtọ: 0.25 ml nke 0.020 N sulfuric acid
Ihe atụ: 0,8 g nke Taurine
Usoro nnabata: NMT 0.03%
• IRON <241>: NMT 30 ppm
• Ọla dị arọ, Usoro I <231>: NMT 15 ppm
• Ngwakọta ejikọtara
Ngwọta ọkọlọtọ: 0.05 mg / mL nke USP Taurine RS n'ime mmiri nha nhata nke ihe dịka 0.5% nke ngwọta Sample.
Ihe ngwọta nlele: 10 mg / ml nke Taurine na mmiri
Sistemụ chromatographic
(Lee Chromatography <621>, Chromatography nke dị obere.)
Ụdị: TLC
Adsorbent: 0.25-mm oyi akwa nke chromatographic silica gel ngwakọta
Olu ngwa: 5µL
Sistemụ ihe mgbaze na-emepe emepe: mmanya butyl, glacial acetic acid, na mmiri (3:1:1)
Mgbasa reagent: 2 mg/mL nke ninhydrin na ngwakọta nke mmanya butyl na 2 N acetic acid (95: 5)
Nyocha: kpoo efere ahụ na 80 ° maka 30 min.Fesa efere ahụ na Spray reagent, ma kpoo ọkụ na 80 Celsius maka ihe dịka 10 min.Nyochaa efere n'okpuru ọkụ ọcha.[IHE-Uru RF maka ntụpọ taurine kwesịrị ịdị ihe dịka 0.2.]
Usoro nnabata: Ọ nweghị ntụpọ nke abụọ nke ngwọta Sample buru ibu ma ọ bụ sie ike karịa ntụpọ isi nke ngwọta Standard.
Ihe adịghị ọcha n'otu n'otu: NMT 0.5%
Nnwale akọwapụtara
• Ọnwụ na-ehichapụ <731>: Kpochapụ ihe nlele na 105 ° maka awa 3: ọ na-efunahụ NMT 0.3% nke ibu ya.
NKWUO GBASARA YA
• Nkwakọba na Nchekwa: Chekwaa n'ime akpa mechiri emechi nke ọma.
• Ụkpụrụ ntụaka USP <11>
USP Taurine RS