Kamfanin Tiantai Cellulose ya ƙware a fannin bincike, haɓakawa, samarwa da tallata kayayyakin hydroxypropyl methyl cellulose HPMC. Tsarkakakkiyar HPMC hydroxypropyl methyl cellulose ita ce batun samfuran da suka fi damuwa ga masana'antun da masu amfani. A nan mu masana'antun hydroxypropyl methyl cellulose don ba da cikakken bayani, ina fatan karantawa don taimakawa.
Tabbatar da tsarkin HPMC hydroxypropyl methyl cellulose
Ka'idar
Hydroxypropyl methyl cellulose HPMC ba ya narkewa a cikin ethanol 80%. Bayan narkewa da wankewa sau da yawa, ana raba kashi 80% na ethanol da aka narkar a cikin samfurin kuma a cire shi don samun tsantsar hydroxypropyl methyl cellulose HPMC.
Rwakili
Sai dai idan an faɗi akasin haka, za a yi amfani da sinadaran da aka tabbatar suna da tsabta kuma an tace su ko kuma an cire su daga jiki ko kuma ruwa mai tsarki iri ɗaya a cikin binciken.
ethanol 95% (GB/T 679).
Ethanol, maganin kashi 80%, a narkar da kashi 95% ethanol (E.2.1) 840mL da ruwa zuwa lita 1.
BMI (GB/T 12591).
Kayan aikin
Kayan aikin dakin gwaje-gwaje na yau da kullun
Na'urar dumama mai maganadisu, tsawon sandar juyawa kusan 3.5cm.
Tacewa mai ƙarfi, 40mL, buɗewa 4.5μm ~ 9μm.
Gilashin saman farantin, φ10cm, ramin tsakiya.
Cokali, 400 ml.
Ruwan wanka mai yawan zafin jiki.
Tanda, na iya sarrafa zafin jiki a 105℃ ± 2℃.
Shirin
A auna samfurin 3g daidai (daidai zuwa 0.001g) a cikin beaker mai nauyin da ya dace, a ƙara 150mL 80% ethanol a 60℃ ~ 65℃, a sanya sandar maganadisu a cikin masu motsa dumama maganadisu, a rufe farantin saman, a saka ma'aunin zafi a tsakiyar rami, a kunna masu motsa dumama, a daidaita saurin juyawa don guje wa fesawa, sannan a kiyaye zafin a 60℃ ~ 65℃. A juya na minti 10.
A daina juyawa, a sanya beaker ɗin a cikin ruwan wanka mai zafi na 60℃ ~ 65℃, a tsaya cak don ya narke abin da ba ya narkewa, sannan a zuba ruwan da ke saman ruwan gwargwadon iko a cikin tukunyar tacewa mai nauyi.
Sai a zuba ethanol 150mL 80% a zafin 60℃ ~ 65℃ a cikin kwalbar, a maimaita ayyukan juyawa da tacewa da ke sama, sannan a wanke kwalbar, farantin saman, sandar juyawa da ma'aunin zafi a hankali da ethanol 80% a zafin 60℃ ~ 65℃, don kada ruwan ya narke gaba ɗaya ya koma cikin kwalbar, sannan a sake wanke abubuwan da ke cikin kwalbar. Ya kamata a yi amfani da tsotsa yayin wannan aikin kuma a guji busar da kek ɗin. Idan ƙwayoyin cuta suka ratsa ta matatar, ya kamata a rage tsotsa.
Lura: ya kamata a tabbatar da cewa sodium chloride da ke cikin samfurin ya wanke gaba ɗaya da ethanol 80%. Idan ya cancanta, ana iya amfani da maganin nitrate na azurfa 0.1mol/L da kuma nitric acid 6mol/L don duba ko filtrate ɗin yana ɗauke da ions na chloride.
A zafin ɗaki, an wanke abin da ke cikin tukunya sau biyu da kashi 95% na ethanol a 50mL, sannan a ƙarshe an wanke shi da ethyl mi20mL don wankewa na biyu. Bai kamata lokacin tacewa ya yi tsayi ba. An sanya tukunyar a cikin tukunya sannan a dumama ta a kan baho mai tururi har sai an ga babu wani wari mai kama da ethyl mi.
Lura: wankewa da ethyl mi yana da mahimmanci don cire ethanol gaba ɗaya daga cikin abin da ba ya narkewa. Idan ba a cire ethanol gaba ɗaya ba kafin a busar da tanda, ba zai yiwu a cire shi gaba ɗaya ba yayin busar da tanda.
An sanya tukunyar da kuma beaker a cikin tanda a zafin 105℃±2℃ don busarwa na tsawon awanni 2, sannan aka mayar da su zuwa na'urar busarwa don sanyaya na tsawon mintuna 30 sannan aka auna su, sannan aka bushe na tsawon awanni 1 sannan aka auna su don sanyaya har sai canjin taro bai wuce 0.003g ba. Idan aka sami ƙaruwar taro yayin busarwa na tsawon awanni 1, mafi ƙarancin nauyin da aka lura zai fi rinjaye.
An ƙididdige sakamakon
An ƙididdige tsarkin HPMC hydroxypropyl methyl cellulose a matsayin rabon taro na P, kuma an bayyana ƙimar a matsayin %
M1 - nauyin busasshen abu mara narkewa, a cikin grams (g);
M0 - Nauyin bangaren gwaji, a cikin grams (g);
W0 - Danshi da kuma abubuwan da ke canzawa na samfurin,%.
Matsakaicin ƙimar lissafi na ma'aunai biyu masu layi ɗaya an rage shi zuwa maki ɗaya na goma a matsayin sakamakon aunawa.
Pdaidaici
Bambancin da ke tsakanin ma'aunai biyu masu zaman kansu da aka samu a ƙarƙashin yanayin maimaitawa bai wuce 0.3% ba, muddin fiye da 0.3% bai wuce 5%.
Lokacin Saƙo: Fabrairu-14-2022