D-Serine CAS 312-84-5 HD-Ser-OH Mayeso 99.0~101.0% Factory High Quality

Acidity pH
Tengani 0.30g ya mankhwalawa, onjezerani 30ml ya madzi kuti musungunuke, ndikuyesa motsatira lamulo (Lamulo la General 0631).Mtengo wa pH uyenera kukhala 5.5 ~ 6.5.
Kutumiza kwa Solution
Tengani 1.0g ya mankhwalawa, onjezerani madzi 20ml kuti musungunuke, malinga ndi ultraviolet-visible spectrophotometry (General rule 0401), dziwani ma transmittance pa kutalika kwa 430mn, osachepera 98.0%.
Chloride
Tengani 0.25g ya mankhwalawa ndikuyiyang'ana motsatira malamulo (General Law 0801).Poyerekeza ndi njira yowongolera yopangidwa ndi 5.0 ml ya sodium chloride solution, sayenera kukhazikika (0.02%).
Sulfate
Tengani 1.0g ya mankhwalawa ndikuyiyang'ana molingana ndi lamulo (General Law 0802).Poyerekeza ndi njira yowongolera yopangidwa ndi 2.0 ml ya njira yokhazikika ya potaziyamu sulphate, sayenera kukhala yokhazikika (0.02%).
Ammonium Salt
tengani 0.10g ya mankhwalawa ndikuyiyang'ana molingana ndi lamulo (General rule 0808).Poyerekeza ndi njira yowongolera yopangidwa ndi 2.0 ml ya yankho la ammonium chloride, silikhala lakuya (0.02%).
Ma Amino Acids ena
Tengani kuchuluka koyenera kwa mankhwalawa, onjezerani madzi kuti musungunuke ndikusungunula kuti mupange yankho lomwe lili ndi pafupifupi 20mg pa lml ngati njira yoyesera;Tengani 1ml kuti muyese bwino ndikuyiyika mu botolo la 200ml, tsitsani muyeso ndi madzi, gwedezani bwino, monga njira yothetsera;Tengani kuchuluka koyenera kwa serine reference ndi methionine reference motsatana, ndikuyika mu botolo loyezera lomwelo, madzi adawonjezeredwa kuti asungunuke ndi kuchepetsedwa kuti akonze yankho lomwe lili ndi pafupifupi 0.4mg iliyonse pa 1ml ngati njira yothetsera dongosolo.Malinga ndi mayeso woonda wosanjikiza chromatography (General 0502), kuyamwa pamwamba atatu zothetsera aliyense 5 u1, motero, pa silika gel osakaniza G woonda wosanjikiza mbale, ndi n-butanol-madzi-glacial acetic asidi (3:1:1) kwa chitukuko, pambuyo pa kutumizidwa, kuyanika mpweya, kupopera mbewu mankhwalawa ndi ninhydrin mu acetone solution (1-50), kutentha pa 80 ° C mpaka mawanga atawonekera, ndikuwunika nthawi yomweyo.Njira yothetsera vutoli iyenera kuwonetsa malo omveka bwino, ndipo njira yothetsera vutoli iyenera kusonyeza mawanga awiri olekanitsidwa.Ngati yankho loyesa likuwonetsa mawanga odetsedwa, mtunduwo suyenera kukhala wozama (0.5%) kuposa malo akulu owongolera.
Kutaya pa Kuyanika
kutenga mankhwala, youma pa 105 ℃ kwa maola 3, kuwonda sadzapitirira 0.2% (General ulamuliro 0831).
Zotsalira pa Ignition
Osapitirira 0.1% (General Law 0841).
Mchere wa Chitsulo
Tengani 1.0g ya chinthuchi ndikuchiyang'ana molingana ndi lamulo (General Law 0807).Poyerekeza ndi njira yowongolera yopangidwa ndi 0.001% yazitsulo zokhazikika, sizikhala zozama ().
Zitsulo Zolemera
Tengani 2.G ya mankhwalawa, onjezerani 23ml wa madzi kuti musungunuke, onjezerani 2ml ya acetate buffer (pH3.5), ndipo fufuzani motsatira malamulo (lamulo loyamba la malamulo ambiri 0821), okhala ndi zitsulo zolemera sizidzapitirira 10 pa miliyoni.
Mchere wa Arsenic
Tengani mankhwala 2. G, kuwonjezera madzi 23ml kusungunuka, kuwonjezera hydrochloric asidi 5ml, malinga ndi kuyendera malamulo (General Mfundo 0822 lamulo loyamba), ayenera kutsatira ndi makonzedwe (0.0001%).
Bakiteriya Endotoxin
Tengani mankhwalawa, fufuzani molingana ndi lamulo (General 1143), kuchuluka kwa endotoxin mu serine iliyonse ya lg kuyenera kukhala yochepera 12EU.(Ya jakisoni)
312-84-5 - Kutsimikiza Kwazinthu
Tengani mankhwalawa pafupifupi 0.1g, kulemera kwake, onjezerani anhydrous formic acid 1 ml kuti musungunuke, onjezerani glacial acetic acid 25ml, malinga ndi njira ya potentiometric titration (General 0701), ndi perchloric acid titration solution (0.1 mol / L) titration, ndi zotsatira za titration zinakonzedwa ndi mayeso opanda kanthu.1 ml iliyonse ya perchloric acid titration solution (0.1 mol/L) imafanana ndi 10.51 mg ya C3H7N03.