Pehea e nānā ai i ka lehu o ka Hydroxypropyl Methylcellulose (HPMC)?

ʻO ka nānā ʻana i ka ʻike lehu o Hydroxypropyl Methylcellulose (HPMC) e pili ana i ka hoʻoholo ʻana i ka pākēneka o ke koena inorganic i waiho ʻia ma hope o ka puhi ʻia ʻana o nā mea kūlohelohe. Eia ke kaʻina hana maʻamau no ka hoʻāʻo ʻana i ka lehu maʻiʻo no HPMC:

Mea Pono:

1. Hydroxypropyl Methylcellulose (HPMC) laʻana
2. Puhi muffle a i ʻole kapuahi lehu
3. Crucible a me ka poʻi (hana ʻia me nā mea inert e like me ka porcelain a i ʻole quartz)
4. Desiccator
5. Kaulike analytical
6. Waʻa puhi (koho)
7. ʻO nā kīʻaha a i ʻole nā ​​​​mea paʻa

Kaʻina hana:

1. Ke kaumaha o ka hāpana:
   • E kaupaona i kahi kīʻaha kaʻawale (m1) i ka 0.1 mg kokoke loa me ka hoʻohana ʻana i ke koena analytical.
   • E kau i ka nui o ka la'ana HPMC (ma'amau 1-5 grams) i loko o ka ipu hao a ho'opa'a i ka paona hui 'ana o ka hāpana a me ka ipu hao (m2).
2. Kaʻina lehu:
   • E kau i ka ipuhao i loko o ka laʻana HPMC i loko o ka umu muffle a i ʻole ka umu lehu.
   • E hoʻomaʻamaʻa mālie i ka umu i kahi mahana i koho ʻia (maʻamau 500-600 ° C) a mālama i kēia mahana no kahi manawa i koho mua ʻia (maʻamau 2-4 mau hola).
   • E hōʻoia i ka hoʻopau piha ʻana o ka mea olaola, e waiho wale ana i ka lehu inorganic.
3. ʻO ka hoʻoluʻu a me ke kaumaha:
   • Ma hope o ka pau ʻana o ke kaʻina hana lehu, e hoʻoneʻe i ke kīʻaha mai ka umu ahi me ka hoʻohana ʻana i nā ʻōpiʻi a i ʻole nā ​​​​mea paʻa.
   • E hoʻokomo i ka crucible a me kona mau mea i loko o kahi desiccator e hoʻomaʻalili i ka lumi wela.
   • Ma hope o ka maʻalili, e kaupaona hou i ke koena o ka lehu (m3).
4. Heluhelu:
   • E helu i ka lehu maʻiʻo o ka laʻana HPMC me ka hoʻohana ʻana i kēia ʻano: Maʻiʻo lehu (%) = [(m3 - m1) / (m2 - m1)] * 100
5. Ka wehewehe ʻana:
   • 'O ka hopena i loa'a, 'o ia ka pākēneka o ka lehu inorganic i loa'a i ka la'ana HPMC ma hope o ka puhi 'ana. Hōʻike kēia waiwai i ka maʻemaʻe o ka HPMC a me ka nui o nā mea inorganic i koe.
6. Hōʻike:
   • E hōʻike i ka waiwai o ka lehu me nā kikoʻī pili e like me nā kūlana hoʻāʻo, hōʻike hōʻike, a me ke ʻano i hoʻohana ʻia.

Nā memo:

• E hōʻoia i ka maʻemaʻe o ka ipuhao a me ka poʻi a me ka ʻole o ka haumia ma mua o ka hoʻohana ʻana.
• E hoʻohana i ka umu muffle a i ʻole ka umu lehu me ka hiki ke hoʻomalu i ka wela e hōʻoia i ka hoʻomehana like ʻana a me nā hopena pololei.
• E mālama pono i ka crucible a me nā mea i loko e pale aku i ka nalowale o nā mea a i ʻole nā ​​​​poino.
• Hana i ke kaʻina hana lehu ma kahi e hoʻoheheʻe maikaʻi ʻia i mea e pale ai i ka ʻike ʻana i nā huahana i hoʻopau ʻia.

Ma ka hahai ʻana i kēia kaʻina hana, hiki iā ʻoe ke hoʻoholo pololei i ka ʻike lehu o nā laʻana Hydroxypropyl Methylcellulose (HPMC) a nānā i ko lākou maʻemaʻe a me ka maikaʻi.