Isosiyete ya Tiantai Cellulose kabuhariwe mu bushakashatsi, iterambere, umusaruro no kugurisha ibicuruzwa bya hydroxypropyl methyl selulose HPMC.Isuku ya HPMC hydroxypropyl methyl selulose nicyo kintu cyibanda cyane kubicuruzwa n'abakoresha.Hano twe hydroxypropyl methyl selulose yinganda kugirango dutange intangiriro irambuye, nizere ko nzasoma kugirango ifashe.
Kumenya ubuziranenge bwa HPMC hydroxypropyl methyl selulose
Ihame
Hydroxypropyl methyl selulose HPMC ntishobora gukemuka muri 80% Ethanol.Nyuma yo gushonga no gukaraba inshuro nyinshi, 80% Ethanol yashonga murugero iratandukana ikavanwaho kugirango ibone hydroxypropyl methyl selulose HPMC.
Reagent
Keretse niba byavuzwe ukundi, gusa reagent zemejwe ko zisesenguye zuzuye kandi zidatunganijwe cyangwa amazi ya deionion cyangwa amazi yubuziranenge bugereranijwe bizakoreshwa mubisesengura.
95% Ethanol (GB / T 679).
Ethanol, 80% igisubizo, shyira 95% Ethanol (E.2.1) 840mL n'amazi kugeza 1L.
BMI (GB / T 12591).
Igikoresho
Ibikoresho bisanzwe bya laboratoire
Magnetic gushyushya stirrer, gukurura inkoni uburebure bwa 3.5cm.
Filtration irakomeye, 40mL, aperture 4.5μm ~ 9μm.
Isahani yubuso bwikirahure, φ10cm, umwobo wo hagati.
Beaker, 400mL.
Ubwogero bwamazi burigihe.
Ifuru, irashobora kugenzura ubushyuhe kuri 105 ℃ ± 2 ℃.
Porogaramu
Gupima neza icyitegererezo cya 3g (cyuzuye kugeza 0.001g) mukibabi gihoraho, ongeramo 150mL 80% Ethanol kuri 60 ℃ ~ 65 ℃, shyira inkoni ya magneti mumashanyarazi ashyushya, utwikire isahani yo hejuru, ushyiremo termometero hagati. umwobo, fungura ibyuma bishyushya, uhindure umuvuduko ukurura kugirango wirinde kumeneka, kandi ugumane ubushyuhe kuri 60 ℃ ~ 65 ℃.Gukurura iminota 10.
Hagarika kubyutsa, shyira inzoga mubwogero bwamazi burigihe bwa 60 ℃ ~ 65 ℃, uhagarare kugirango ukemure ibintu bitangirika, hanyuma usukemo amazi ndengakamere ashoboka rwose mumashanyarazi ahoraho.
Ongeramo 150mL 80% Ethanol kuri 60 ℃ ~ 65 ℃ kuri beaker, subiramo ibikorwa byavuzwe haruguru byo gushungura no kuyungurura, hanyuma ukarabe inzoga, isahani yo hejuru, inkoni ikurura hamwe na termometero witonze hamwe na 80% Ethanol kuri 60 ℃ ~ 65 ℃, kugirango ikibazo kidashobora gukemurwa cyimuriwe rwose kubikomeye, hanyuma ukarabe ibikubiye mubikomeye.Kunywa bigomba gukoreshwa muri iki gikorwa kandi birinda gukama.Niba ibice byanyuze muyungurura, guswera bigomba gutinda.
Icyitonderwa: bigomba kwemezwa ko sodium chloride ya sample yogejwe rwose na 80% Ethanol.Nibiba ngombwa, 0.1mol / L ya nitrate yumuti hamwe na aside nitrike ya 6mol / L irashobora gukoreshwa kugirango harebwe niba filtrate irimo ioni ya chloride.
Ku bushyuhe bwicyumba, ibintu byingenzi byogejwe kabiri hamwe na 95% Ethanol kuri 50mL, hanyuma amaherezo hamwe na Ethyl mi20mL yo gukaraba kabiri.Igihe cyo kuyungurura ntigomba kuba kirekire.Ikibumbano cyashyizwe muri bake hanyuma gishyuha ku bwogero bwa parike kugeza igihe nta mpumuro ya Ethyl mi yabonetse.
Icyitonderwa: gukaraba hamwe na Ethyl mi birakenewe kugirango ukureho burundu Ethanol mubintu bitangirika.Niba Ethanol idakuweho burundu mbere yo gukama, gukuraho burundu ntibishoboka mugihe cyumye.
Ikibumbano na beaker byashyizwe mu ziko kuri 105 ℃ ± 2 ℃ kugirango byume kuri 2h, hanyuma bimurirwa mu cyuma cyo gukonjesha 30min hanyuma bipima, hanyuma byumishwa kuri 1h hanyuma bipima gukonja kugeza impinduka rusange itarenze 0.003g .Mugihe kwiyongera kwinshi mugihe cya 1h yumye, misa yagaragaye cyane izatsinda.
Ibisubizo byabazwe
Ubuziranenge bwa HPMC hydroxypropyl methyl selulose yabazwe nkigice kinini P, kandi agaciro kagaragajwe nka%
M1 - ubwinshi bwibintu byumye bidashonga, muri garama (g);
M0 - Misa yibigize ikizamini, muri garama (g);
W0 - Ubushuhe nibirimo bihindagurika byintangarugero,%.
Imibare isobanura agaciro k'ibipimo bibiri bibangikanye bigabanywa kugeza ku ngingo icumi nkibisubizo byo gupima.
Pgusubiramo
Itandukaniro ryuzuye hagati yibipimo byombi byigenga byabonetse mubihe bisubirwamo ntabwo birenze 0.3%, mugihe birenze 0.3% bitarenze 5%.
Igihe cyo kohereza: Gashyantare-14-2022