D-Serine CAS 312-84-5 HD-Ser-OH Assay 99.0~101.0% Hale Hana Kiʻekiʻe

Kaʻakika pH
E lawe i 0.30g o kēia huahana, hoʻohui i 30ml wai e hoʻoheheʻe, a ana e like me ke kānāwai (General rule 0631).Pono ka pH 5.5-6.5.
Ka hoʻouna ʻana o ka hoʻonā
e lawe i 1.0g o kēia huahana, e hoʻohui i ka wai 20ml e hoʻoheheʻe, e like me ka ultraviolet-visible spectrophotometry (General rule 0401), e hoʻoholo i ka transmittance ma ka nalu o 430mn, ʻaʻole i emi iho ma mua o 98.0%.
Klorida
E lawe i 0.25g o kēia huahana a nānā e like me ke kānāwai (General rule 0801).Ke hoʻohālikelike ʻia me ka hoʻonā mana i hana ʻia me 5.0 ml o ka solution sodium chloride maʻamau, ʻaʻole pono e ʻoi aku ka nui (0.02%).
Sulfate
E lawe i 1.0g o kēia huahana a nānā e like me ke kānāwai (General rule 0802).Ke hoʻohālikelike ʻia me ka hoʻonā mana i hana ʻia o 2.0 ml o ka hopena potassium sulfate maʻamau, ʻaʻole pono e hoʻonui ʻia (0.02%).
Paakai Ammonium
e lawe i 0.10g o kēia huahana a nānā e like me ke kānāwai (General rule 0808).Ke hoʻohālikelike ʻia me ka hoʻonā mana i hana ʻia me 2.0 ml o ka solution ammonium chloride maʻamau, ʻaʻole ia e hohonu (0.02%).
Nā ʻAmino ʻē aʻe
E lawe i ka nui kūpono o kēia huahana, e hoʻohui i ka wai e hoʻoheheʻe a hoʻoheheʻe ʻia e hana i kahi hopena i loaʻa ma kahi o 20mg no ka lml ma ke ʻano he hopena hoʻāʻo;E lawe i 1ml no ke ana pololei a waiho i loko o ka ipu ana 200ml, e hoʻoheheʻe i ka paona me ka wai, e lulu maikaʻi, ma ke ʻano he hopena hoʻomalu;E lawe i ka huina kupono o ka serine reference a me ka methionine reference, a e waiho i loko o ka ipu ana hookahi, ua hookomoia ka wai e hoohehee a hooheheeia no ka hoomakaukau ana he 0.4mg i kela ame keia 1ml ma ke ano he hooponopono pono.E like me ka hoʻāʻo ʻana o ka chromatography papa lahilahi (General 0502), e hoʻomoʻa i nā haʻina ʻekolu ma luna o kēlā me kēia 5 u1, i kēlā me kēia, ma ka silica gel G ʻili lahilahi pā, me ka n-butanol-wai-glacial acetic acid (3:1:1) no ka hoʻomohala ʻana, ma hope o ka waiho ʻana, e hoʻomaloʻo i ka ea, e kāpīpī me ka ninhydrin i loko o ka acetone solution (1-50), e hoʻomehana ma 80 ° C a hiki i ka ʻike ʻana o nā kiko, a me ka nānā koke ʻana.Pono e hōʻike i ka ʻaha hoʻomalu i kahi kikoʻī, a ʻo ka ʻōnaehana pili pono e hōʻike i ʻelua mau wahi kaʻawale loa.Inā hōʻike ka hopena hoʻāʻo i nā wahi haumia, ʻaʻole pono ka hohonu o ke kala (0.5%) ma mua o ka wahi nui o ka hoʻonā mana.
Nalo ma ka maloo
E lawe i kēia huahana, maloʻo ma 105 ℃ no 3 mau hola, ʻaʻole e oi aku ka pohō o ke kaumaha ma mua o 0.2% (General rule 0831).
Koena ma ka Ignition
ʻAʻole i ʻoi aku ma mua o 0.1% (Ke kānāwai nui 0841).
Paakai Hao
E lawe i 1.0g o kēia huahana a nānā e like me ke kānāwai (General rule 0807).Ke hoʻohālikelike ʻia me ka hoʻonā mana i hana ʻia me 0.001% o ka hoʻonā hao maʻamau, ʻaʻole ia e hohonu ().
Metala Kaumaha
E lawe i ka 2.G o kēia huahana, e hoʻohui i ka 23ml o ka wai e hoʻoheheʻe, e hoʻohui i 2ml o ka acetate buffer (pH3.5), a nānā e like me ke kānāwai (ke kānāwai mua o nā lula maʻamau 0821), ʻaʻole i ʻoi aku ka nui o nā metala kaumaha ma mua o 10 mau ʻāpana. no ka miliona.
Paakai Arsenic
E lawe i kēia huahana 2. G, e hoʻohui i ka wai 23ml i hoʻoheheʻe ʻia, e hoʻohui i ka waika hydrochloric 5ml, e like me ka nānā ʻana o ke kānāwai (General Principles 0822 mua kānāwai), pono e hoʻokō me nā ʻōlelo (0.0001%).
Endotoxin maʻi bacteria
E lawe i kēia huahana, e nānā e like me ke kānāwai (General 1143), ʻo ka nui o ka endotoxin i kēlā me kēia lg serine e emi iho ma mua o 12EU.(No ka injection)
312-84-5 - Hoʻoholo i ka ʻike
E lawe i kēia huahana e pili ana i 0.1g, pololei ke kaupaona ʻana, e hoʻohui i ka waika formic anhydrous 1 ml e hoʻoheheʻe, e hoʻohui i ka waika acetic glacial 25ml, e like me ke ʻano titration potentiometric (General 0701), me ka waika perchloric titration solution (0.1 mol/L) titration, a ua hoʻoponopono ʻia nā hopena o ka titration me kahi hoʻāʻo blank.ʻO kēlā me kēia 1 ml o ka waika perchloric titration solution (0.1 mol/L) pili i 10.51 mg o C3H7N03.