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

Transmittance of Solution
Tora chigadzirwa ichi l.Mushure mekuwedzera 2mol/L hydrochloric acid solution (20ml) kuti inyungudiswe, pima transmittance pawavelength ye430nm neUV-visible spectrophotometry (General mutemo 0401), uye transmittance haifaniri kunge iri pasi pe98.0%.
Chloride
Tora 0.30g yechigadzirwa ichi uye utarise maererano nemutemo (General mutemo 0801).Kuenzaniswa nemhinduro yekudzora yakagadzirwa ne6.0ml yeyakajairwa sodium chloride mhinduro, haifanirwe kuve yakanyanya kuomeswa (0.02%).
Sulfate
Tora 0.50g yechigadzirwa ichi, wedzera 2ml ye dilute hydrochloric acid uye 5ml yemvura, zunza kuti inyunguduke, tarisa maererano nemutemo (General mutemo 0802), uye enzanisa nekugadzirisa mhinduro yakagadzirwa neyakajairwa potassium sulfate solution, isingachanyanyi kuomeswa (0.02) %).
Ammonium Munyu
Tora 0.10g yechigadzirwa ichi uye utarise maererano nemutemo (General mutemo 0808).Kuenzaniswa nemhinduro yekudzora yakagadzirwa ne0.02% yeyakajairwa ammonium chloride mhinduro, haizove yakadzika ().
Mamwe maAmino Acids
Tora chigadzirwa ichi, wedzera 0.5mol / L hydrochloric acid solution yekunyungudutsa uye kunyunguduka kugadzirira mhinduro ine inenge 10 mg pa 1ml semhinduro yekuedza;Tora 1ml yechiyero chakanyatsojeka, mune 0.5 yekuyeresa flask, dilute kusvika pachiyero ne mol / L hydrochloric acid solution, zunza zvakanaka, uye shandisa semugadziri wekugadzirisa, A 0.5mol / L hydrochloric acid solution yakawedzerwa, yakanyungudutswa uye yakanyungudutswa kugadzirira. mhinduro ine inenge 10 mg ye glutamic acid uye MG ye aspartic acid pa 1ml, maererano, segadziriro-yakakodzera mhinduro.Zvinoenderana neyakatetepa layer chromatography (General 0502) bvunzo, dhirowa 5ul yeimwe neimwe yemhinduro nhatu dziri pamusoro, zvichiteerana, pane imwechete silica gel G nhete layer plate, ine n-butanol-mvura-glacial acetic acid (2:1:1) ) kugadzira, kuparadzira, kuoma, kupfapfaidza ninhydrin muacetone solution (1-50), kupisa pa80°C kusvikira makwapa aoneka, wobva waongorora ipapo.Iyo yekudzora mhinduro inofanirwa kuratidza yakajeka nzvimbo, uye iyo system inoshanda mhinduro inofanirwa kuratidza maviri akapatsanurwa makwapa.Kana mhinduro yekuedza ichiratidza mavara asina kuchena, ruvara harufanire kunge rwakadzika (0.5%) kupfuura nzvimbo huru yemhinduro yekutonga.
Kurasika paKuomesa
Tora chigadzirwa ichi, chakaoma kuti chirambe chichirema pa105 ℃, kurasikirwa nehuremu hakufaniri kudarika 0.5% (General mutemo 0831).
Residue paIgnition (seSulfated)
Tora l.0g yechigadzirwa ichi uye utarise maererano nemutemo (General mutemo 0841).Zvakasara zvakasara hazvifaniri kudarika 0.1%.
Iron Munyu
Tora 2.0g yechigadzirwa ichi, wedzera 6mL ye dilute hydrochloric acid uye huwandu hwakakodzera hwemvura, kupisa kunyunguduka, kutonhora, kuwedzera mvura ku25ml, uye tarisa maererano nemutemo (General mutemo 0807), haifanirwe kunge yakadzika (0.0005% ) kupfuura mhinduro yekutonga yakagadzirwa neyakajairwa iron solution.
Heavy Metals
Zvakasara zvakasara pasi pechinhu chekutora zvakasara zvemoto hazvifaniri kuva nezvikamu zvinopfuura gumi pamamiriyoni eheavy metal kana zvichiongororwa nemutemo (General Principles 0821, Law II).
Arsenic Munyu
Tora 2.0g yechigadzirwa ichi, wedzera 5ml yehydrochloric acid uye 23ml yemvura kuti inyunguduke, tarisa maererano nemutemo (General Principles 0822 mutemo wekutanga), inofanira kuenderana nezvinodiwa (0.0001%).
Pyrogen
Ichi chigadzirwa chinonatswa nejekiseni re sodium chloride kugadzira mhinduro ine 20mg pa lml, inopisa kuti inyunguduke, rega kutonhorera kusvika 37 ° C, uye tarisa maererano nemutemo (General mutemo 1142), dose maererano nehuremu hwemuviri wetsuro palkg jekiseni 10ml. , inofanira kuenderana nezvinodiwa.(Yejekiseni)
56-86-0 - Kutsunga kwemukati
Tora chigadzirwa ichi chinenge 0.25g, kunyatsoyera kuyera, wedzera mvura inofashaira 50ml kuti inyunguduke, rega itonhore, wedzera madonhwe mashanu ebromothymol blue indicator solution, uye shandisa sodium hydroxide titration solution (0.1 mol/L) titration kune mhinduro kubva kuyero kusvika kublue- girinhi.Imwe neimwe 1 ml ye sodium hydroxide titration solution (0.1 mol/L) inoenderana ne14.71mg yeC5H9N04.