Isosiyete ya Tiantai Cellulose yihariye mu bushakashatsi, iterambere, umusaruro no kwamamaza ibicuruzwa bya hydroxypropyl methyl cellulose HPMC. Ubuziranenge bwa HPMC hydroxypropyl methyl cellulose ni yo ngingo ihangayikishije cyane abakora n'abakoresha. Hano dukora hydroxypropyl methyl cellulose kugira ngo dutange ibisobanuro birambuye, nizeye ko nzabisoma kugira ngo bimfashe.
Kumenya ubuziranenge bwa HPMC hydroxypropyl methyl cellulose
Ihame
Hydroxypropyl methyl cellulose HPMC ntishongera muri ethanoli 80%. Nyuma yo gushonga no gukaraba inshuro nyinshi, ethanoli 80% yashongeshejwe mu gipimo irakurwamo hanyuma igakurwamo kugira ngo haboneke hydroxypropyl methyl cellulose HPMC.
Rumukozi
Keretse iyo byavuzwe ukundi, ibikoresho byemejwe ko ari amazi meza kandi asukuye cyangwa yahinduwe iyoni cyangwa amazi afite isuku nk'iyo ni byo byonyine bigomba gukoreshwa mu isesengura.
Ethanol ya 95% (GB/T 679).
Ethanol, 80% by'umuti, shyiramo 95% ya ethanol (E.2.1) 840mL n'amazi kuri 1L.
BMI (GB/T 12591).
Igikoresho
Ibikoresho bisanzwe byo muri laboratwari
Akamashini gashyushya gakoresha ikoranabuhanga rya rukuruzi, gafite uburebure bwa cm 3.5.
Imashini iyungurura, 40mL, umwobo 4.5μm ~ 9μm.
Isahani yo hejuru y'ikirahure, φ10cm, umwobo wo hagati.
Ifu y'umugati, 400ml.
Ubwiyuhagiro bw'amazi burimo ubushyuhe buhoraho.
Ifuru, ishobora kugenzura ubushyuhe kuri 105℃±2℃.
Gahunda
Pima neza 3g y'icyitegererezo (kuri 0.001g) mu gikoresho gipima uburemere buhoraho, ongeramo 150mL 80% ethanol kuri 60℃ ~ 65℃, shyiramo icyuma gishyushya mu cyuma gishyushya gikoresheje magnetism, upfuke isahani, shyiramo thermometer mu mwobo wo hagati, fungura ibyuma bishyushya, hindura umuvuduko wo gukangura kugira ngo wirinde gusukamo, kandi ukomeze ubushyuhe kuri 60℃ ~ 65℃. Kangura iminota 10.
Reka kuvanga, shyira agace k'amazi mu bwogero bw'amazi burimo ubushyuhe buhoraho bwa dogere 60 ~ 65, hagarara uhagaze kugira ngo ibintu bidashonga bishire, hanyuma usuke amazi menshi ashoboka mu cyuma gipima uburemere gihoraho.
Shyiramo ethanoli ya 150ml 80% kuri dogere 60° ~ 65°C mu gikoresho cyo gukaraba, ongeramo ibikorwa byo gukaraba no kuyungurura byavuzwe haruguru, hanyuma woze neza agakoresho ko gukaraba, isahani yo hejuru, inkoni yo gukaraba na thermometer ukoresheje ethanoli ya 80% kuri dogere 60° ~ 65°C, kugira ngo ibintu bidashonga byimurwe byose mu gikoresho cyo gukaraba, hanyuma woze neza ibiri mu gikoresho cyo gukaraba. Gukaraba bigomba gukoreshwa muri iki gikorwa kandi wirinde kumisha umugati. Niba uduce duto tunyuze mu kayunguruzo, gukaraba bigomba kugabanywa umuvuduko.
Icyitonderwa: hagomba gukorwa ibishoboka byose kugira ngo sodium chloride iri mu gipimo igerweho burundu na ethanol ya 80%. Iyo bibaye ngombwa, umuti wa nitrati ya silver wa 0.1mol/L na aside nitrique ya 6mol/L bishobora gukoreshwa kugira ngo harebwe niba filtrate irimo iyoni za chloride.
Ku bushyuhe bw'icyumba, ibirimo byakozwe mu cyuma byogejwe kabiri hakoreshejwe 95% ethanol kuri 50mL, hanyuma hagashyirwamo ethyl mi20mL kugira ngo byogerweho kabiri. Igihe cyo kuyungurura ntigikwiye kuba kirekire cyane. Icyuma cyogejwe cyashyizwe mu gikombe gishyushya mu bwogero kugeza igihe nta mpumuro ya ethyl mi ibonetse.
Icyitonderwa: gukaraba na ethyl mi ni ngombwa kugira ngo ethanol ivanwe burundu mu kintu kidashonga. Iyo ethanol idakuweho burundu mbere yo kumisha ifuru, kuyikuraho burundu ntibishoboka mu gihe cyo kumisha ifuru.
Igikoresho cyo gutwika n'icupa byashyizwe mu ifuru ku bushyuhe bwa 105℃±2℃ kugira ngo byumishwe amasaha 2, hanyuma byimurirwa mu cyuma cyumutsa kugira ngo bikonjeshe iminota 30 hanyuma bipimwe, binamishwa isaha 1 hanyuma bipimwe kugira ngo bikonjeshe kugeza igihe igipimo cy'uburemere kitarenze 0.003g. Mu gihe uburemere bwiyongereye mu gihe cy'isaha 1 cyo kumisha, uburemere buke bwagaragaye ni bwo bugomba kuba ubw'ibanze.
Ibyavuye mu bushakashatsi byabazwe
Ubuziranenge bwa HPMC hydroxypropyl methyl cellulose bwabazwe nk'igice cy'uburemere P, kandi agaciro kagaragajwe nka %
M1 - uburemere bw'ibintu byumye bidashonga, muri garama (g);
M0 — Uburemere bw'igice cy'igerageza, muri garama (g);
W0 — Ubushuhe n'ihindagurika ry'ingero, %.
Igipimo cy’ikigereranyo cy’imibare cy’ibipimo bibiri bihwanye kigabanuka kikagera ku nota imwe ya desimali nk’umusaruro w’ibipimo.
Pgufata umwanzuro
Itandukaniro rigaragara hagati y’ibipimo bibiri byigenga byabonetse mu buryo bwo gusubiramo ntabwo rirenze 0.3%, mu gihe ibirenze 0.3% bitarenze 5%.
Igihe cyo kohereza: Gashyantare-14-2022