Adenine CAS 73-24-5 Assay 98.0%~102.0% (Titration) High Purity Factory

Adenine e na le NLT 98.0% le NMT 102.0% ea C 5H5N5, e baloang ho latela omisitsoeng.
TS'ELISO TS'OANE
A. HO AMOHELA INFORARED <197K>
TLHOKOMELO
MOKHOAOA
Mohlala: 200 mg ea Adenine
Sekheo: 80 ml ea motsoako oa 100 ml ea glacial acetic acid le 300 ml ea acetic anhydride
Sistimi ea Titrimetric
Mokhoa: Titration e tobileng
Titrant: 0.1 N per chloric acid VS e eme ka tsela e latelang: Fetisetsa 300 mg ea potassium biphthalate ho beaker ea 150-mL, 'me, ka ho hlohlelletsa, qhala ka 80 mL ea motsoako oa 100 ml ea glacial acetic acid le 300 ml ea acetic anhydride.Titrate ka tharollo ea chloric acid.E 'ngoe le e 'ngoe ea 20.42mg ea potassium biphthalate e lekana le 1 mL ea 0.1 N perchloric acid.
Ho lemoha lintlha tsa ho qetela: Potentiometric
Tlhahlobo: Qhala Mohlala ka 80 ml ea motsoako oa 100 ml ea glacial acetic acid le 300 ml ea acetic anhydride ka ho sisinya, le titrate le Titrant.Bala liperesente tsa Adenine (C5H5N5) karolong e nkiloeng:
Sephetho = [(V − B) × N × F × 100]/W
V = Mohlala oa molumo oa titrant (mL)
B = Bolumo e se nang letho (mL)
N = maemo a tloaelehileng (mEq/mL)
F = ntlha e lekanang, 135.13 mg/mEq
W = boima ba Mohlala (mg)
Mekhoa ea ho amohela: 98.0% -102.0% ka mokhoa o omisitsoeng
LITŠILA
Tšilafalo ea Inorganic
HO HLAHALA HO HLAHALA <281>: NMT 0.1%
LINTLHA TSE BOHLOKO, Mokhoa oa II <231>: NMT 10ppm
Litšila tsa Organic
MOKHOAOA
pH 7.0 phosphate buffer: Qhala 4.54 g ya monobasic potassium phosphate metsing ho etsa 500 mL ea tharollo.Qhala 4.73 g ya anhydrous dibasic sodium phosphate metsing ho etsa 500 ml ea tharollo.Kopanya 38.9 ml ea tharollo ea monobasic potassium phosphate le 61.1 mL ea dibasic sodium phosphate solution.Fetola, ha ho hlokahala, ka ho eketsa tharollo ea dibasic sodium phosphate ho pH ea 7.0.
Standard stock solution: Qhalang palo e loketseng ea USP Adenine RS metsing a chesang, a pholileng, 'me a hlapolle ka bongata ka metsi ho fumana tharollo e nang le motsoako o tsejoang oa 0.19 mg/mL.
Litharollo tse tloaelehileng: Pipet 5-mL likarolo tsa tharollo ea Setoko se Tloaelehileng ka har'a liflask tse tharo tsa 100-mL tsa volumetric, le ho hlapolla ka 0.10 N hydrochloric acid, 0.010 N sodium hydroxide, le pH 7.0 phosphate buffer, ka ho latellana, ho bophahamo.
Mohlala oa tharollo ea setoko: Qhala bongata bo loketseng ba Adenine metsing a chesang, a pholileng, 'me u hlapolle ka bongata ka metsi ho fumana tharollo e nang le motsoako o tsebahalang oa 0.19 mg/mL.
Mohlala oa tharollo ea setoko: Qhala bongata bo loketseng ba Adenine metsing a chesang, a pholileng, 'me u hlapolle ka bongata ka metsi ho fumana tharollo e nang le motsoako o tsebahalang oa 0.19 mg/mL.
Mehlala ea tharollo: Pipet 5-mL likarolo tsa Sample stock solution ho tse tharo tsa 100-mL volumetric flasks, 'me dilute ka 0.10 N hydrochloric acid, 0.010 N sodium hydroxide, le pH 7.0 phosphate buffer, ka ho latellana, ho ea bophahamong.
Maemo a spectrometric
(Sheba Spectrophotometry le Light-Sscattering <851>.)
Mokhoa: UV-Vis
Leqhubu la maqhubu: 220-320 nm
Seleng: 1cm
Sekheo: Metsi
Tlhahlobo
Mehlala: Litharollo tse tloaelehileng le Mehlala ea tharollo
Mekhoa ea ho amohela: The absorptivities e fapaneng, e baloang motheong o omisitsoeng, ho bophahamo ba maqhubu a ho monya ho hoholo, bakeng sa tharollo e 'ngoe le e' ngoe e lumellanang ha e fapane ho feta 2.0%.
LITEKO TSEKO
LOSSON DRYING <731>: Omisa sampole ho 110 ° bakeng sa 4 h: e lahleheloa ke NMT 1.0% ea boima ba eona.
NITROGEN CONTENT, Mokhoa oa II 〈461〉: 50.2%–53.4%, e baloang motheong o omisitsoeng
KEKELETSO LIHLOKO
PAKATSO LE POLOKO: Boloka ka har'a linkho tse koetsoeng hantle.
USP REFERENCE LITEKELO <11>
USP Adenine RS