L-Glutamic Acid CAS 56-86-0 (H-Glu-OH) Assay 98.5~100.5% Factory High Quality

Ka hoʻouna ʻana o ka hoʻonā
E lawe i kēia huahana l.Ma hope o ka hoʻohui ʻana i 2mol/L hydrochloric acid solution (20ml) e hoʻoheheʻe ʻia, e ana i ka transmittance ma ka hawewe lōʻihi o 430nm e UV-visible spectrophotometry (General rule 0401), a ʻaʻole e emi ka transmittance ma mua o 98.0%.
Klorida
E lawe i 0.30g o kēia huahana a nānā e like me ke kānāwai (General rule 0801).Ke hoʻohālikelike ʻia me ka hoʻonā mana i hana ʻia me 6.0ml o ka solution sodium chloride maʻamau, ʻaʻole pono e hoʻonui ʻia (0.02%).
Sulfate
E lawe i ka 0.50g o kēia huahana, e hoʻohui i 2ml o ka waika hydrochloric dilute a me 5ml o ka wai, e hoʻoluliluli e hoʻoheheʻe, e nānā e like me ke kānāwai (General rule 0802), a hoʻohālikelike me ka hoʻonā mana i hana ʻia i ka solution potassium sulfate maʻamau, ʻaʻole i ʻoi aku ka nui (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 0.02% o ka solution ammonium chloride maʻamau, ʻaʻole ia e hohonu ().
Nā ʻAmino ʻē aʻe
E lawe i kēia huahana, e hoʻohui i ka 0.5mol / L hydrochloric acid solution e hoʻoheheʻe a hoʻoheheʻe e hoʻomākaukau i kahi hopena i loaʻa ma kahi o 10 mg no 1ml ma ke ʻano he hopena hoʻāʻo;E lawe i ka 1ml no ke ana pololei, i loko o ka ipu ana 0.5, e hoʻoheheʻe i ka pālākiō me ka mol/L hydrochloric acid solution, lulu maikaʻi, a hoʻohana ma ke ʻano he hopena hoʻomalu, ua hoʻohui ʻia kahi solution 0.5mol/L hydrochloric acid, hoʻoheheʻe ʻia a hoʻoheheʻe ʻia e hoʻomākaukau. he hopena i loaʻa ma kahi o 10 mg o ka waikawa glutamic a me ka MG o ka waikawa aspartic no 1ml, i kēlā me kēia, ma ke ʻano he ʻōnaehana kūpono.E like me ka ho'āʻo chromatography papa lahilahi (General 0502), e kaha kiʻi i 5ul o kēlā me kēia o nā hāʻina ma luna aʻe nei ʻekolu, i kēlā me kēia, ma ka silica gel G ʻili lahilahi pā, me ka n-butanol-wai-glacial acetic acid (2:1:1). ) e hoʻomohala, hoʻolaha, maloʻo, kāpī ʻia me ka ninhydrin i loko o ka acetone solution (1-50), wela ma 80 ° C a hiki i ka ʻike ʻana o nā kiko, a nānā koke.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 a hiki i ke kaumaha mau ma 105 ℃, ʻaʻole e ʻoi aku ke kaumaha o ke kaumaha ma mua o 0.5% (Ke kānāwai nui 0831).
Ke koena ma ka ʻāʻā (e like me ka Sulfated)
E lawe i ka l.0g o kēia huahana a nānā e like me ke kānāwai (General rule 0841).ʻAʻole ʻoi aku ke koena o ke koena ma mua o 0.1%.
Paakai Hao
E lawe i ka 2.0g o kēia huahana, e hoʻohui i 6mL o ka waika hydrochloric dilute a me ka nui o ka wai, wela e hoʻoheheʻe, hoʻomaha, hoʻohui i ka wai i 25ml, a nānā e like me ke kānāwai (General rule 0807), ʻaʻole pono e hohonu (0.0005%). ) ma mua o ka hoʻonā hoʻomalu i hana ʻia me ka hoʻonā hao maʻamau.
Nā Metala Kaumaha
ʻO ke koena i waiho ʻia ma lalo o ke ʻano o ka lawe ʻana i ke koena hoʻā ahi ʻaʻole e loaʻa ma mua o 10 mau ʻāpana o ka miliona o ka metala kaumaha ke nānā ʻia e ke kānāwai (General Principles 0821, Law II).
Paakai Arsenic
E lawe i 2.0g o kēia huahana, e hoʻohui i 5ml o ka waika hydrochloric a me 23ml o ka wai e hoʻoheheʻe, e nānā e like me ke kānāwai (General Principles 0822 mua kānāwai), pono e hoʻokō me nā ʻōlelo (0.0001%).
Pyrogen
Hoʻoheheʻe ʻia kēia huahana me ka sodium chloride injection e hana i kahi hopena i loaʻa i ka 20mg no ka lml, wela e hoʻoheheʻe ʻia, e hoʻomaha a hiki i 37 ° C, a nānā e like me ke kānāwai (General rule 1142), dose e like me ke kaumaha o ke kino rabbit no ka lkg injection 10ml , pono e hoʻokō me nā ʻōlelo.(No ka injection)
56-86-0 - Hoʻoholo maʻiʻo
E lawe i kēia huahana ma kahi o 0.25g, pololei ke kaupaona ʻana, e hoʻohui i ka wai paila 50ml e hoʻoheheʻe, e hoʻomaha, e hoʻohui i 5 kulu o ka bromothymol blue indicator solution, a hoʻohana i ka sodium hydroxide titration solution (0.1 mol/L) titration i ka hopena mai ka melemele a i ka uliuli- ʻōmaʻomaʻo.ʻO kēlā me kēia 1 ml o ka sodium hydroxide titration solution (0.1 mol/L) pili i 14.71mg o C5H9N04.