Kuchena kwezana: Kukosha uye Maitiro Ekuiverenga
Percentage purity ipfungwa yakakosha muzvikamu zvakasiyana-siyana zvesainzi, kubva pakuongorora kemesitiri kusvika kuindasitiri yemishonga. Kunzwisisa percentage purity uye maverengerwo ayo hunyanzvi hwakakosha hunowanzo kuve hwakakosha mukurabhoritari, kugadzirwa kwemakemikari, uye kudzora mhando. Chinyorwa chino chichatsanangura zvakadzama kuti percentage purity chii, nei ichikosha, uye maverengerwo ayo nemazvo.
Tsanangudzo yePercentage yeKuchena
Percentage purity inhamba yehuwandu hwechinhu chakachena mumuenzaniso kusvika kuhuwandu hwese hwemuenzaniso, hunoratidzwa sepercentage. Pamasvomhu, izvi zvinogona kurongwa se:
\[ \text{Percent Purity} = \left( \frac{\text{mass of pure components}}{\text{total mass of sample}} \right) \times 100\% \]
Pfungwa iyi inobatsira kunzwisisa kuti chinhu chakachena sei. Muchokwadi, huwandu hwekuchena kwakakosha kuve nechokwadi chekuti zvinhu zvinoshandiswa mumabasa akasiyana-siyana, akadai semakemikari ekutsvagisa, mishonga, uye kunyange simbi dzinokosha, zvinosangana nemamiriro ezvinhu emhando yepamusoro.
Sei Kuchena Kwakakosha?
1. Hunhu hweChigadzirwa: Muindasitiri yemishonga, kuchena kwezvinhu zvinoshanda kwakakosha kuti mishonga ishande zvakanaka uye isakuvara. Mishonga isina kuchena zvakanyanya inogona kunge iine zvinhu zvinokuvadza kana kusashanda zvakanaka pamutengo wakatarwa.
2. Kushanda Nesimba Kwemakemikari: Mukuongorora uye kugadzira makemikari, kuchena kwezvinhu kunokanganisa kushanda zvakanaka uye kubereka kwemaitiro. Zvinhu zvisina kunaka zvinogona kunge zvine tsvina inokonzera maitiro asina kunaka.
3. Kuchengetedzwa: Mune zvimwe zviitiko, tsvina iri mumakemikari inogona kuva nengozi. Semuenzaniso, mafuta akachena zvakanyanya anodiwa mumagetsi enyukireya kudzivirira mafambiro asina kudzorwa echeni.
4. Mitengo: Musimbi dzinokosha dzakadai segoridhe nesirivha, kuchena kunokanganisa zvakananga mutengo. Goridhe re24-karat rinoonekwa segoridhe rakachena, nepo goridhe relow-karat riine akawanda ma alloys.
Maitiro Ekuverenga Percentage Yekuchena
1. Kushandisa Mass: Nzira iri nyore yekuverenga percentage purity ndeyekuyera huremu hwechikamu chakachena nehuremu hwese hwemuenzaniso. Semuenzaniso, kana uine sampuro ine huremu hwese hwemagiramu gumi, uye magiramu masere chete ayo ari akachena, percentage purity ndeiyi:
\[ \text{Percent Purity} = \left( \frac{8g}{10g} \right) \times 100\% = 80\% \]
2. Kushandisa Kuongororwa Kwehuwandu (Titration): Dzimwe nguva, kuchena kwechinhu kunogona kuonekwa kuburikidza netitration. Semuenzaniso, mukuongorora kweacid-base, unogona kuziva huwandu chaihwo hwetitrant solution uye huwandu hunoshandiswa kusvika pa equivalence point. Kubva pane izvi, unogona kuverenga huremu hwechinhu chinoshanda wochienzanisa nehuremu hwese hwesample.
3. Spectroscopy: Mune zvimwe zviitiko, nzira dzakaomarara dzakadai se infrared kana ultraviolet spectroscopy dzinoshandiswa kuona musanganiswa wemuenzaniso. Data re spectroscopic rinozoongororwa kuti rione kuchena kwechinhu chacho.
4. Chromatography: Matekiniki aya, anosanganisira Gas Chromatography (GC) neHigh Performance Liquid Chromatography (HPLC), anogona kupatsanura zvikamu mumuenzaniso uye kuona huwandu hwechikamu chimwe nechimwe.
Muenzaniso weKushandiswa kweKuverenga Kweperesenti Yekuchena
1. Pharmacy: Ngatitii mushonga une chinhu chinoshanda A. Mukuongorora kwerabhoritari, zvinowanikwa kuti kubva pagiramu imwe chete yemuenzaniso wemushonga, magiramu 0.9 chete ndiwo chinhu chinoshanda A, nepo zvimwe zvese zviri tsvina. Kuchena kwechinhu chinoshanda A kunogona kuverengerwa seizvi:
\[ \text{Percent Purity} = \left( \frac{0.9g}{1g} \right) \times 100\% = 90\% \]
2. Simbi Dzinokosha: Kana uine sampuro yegoridhe inorema magiramu zana, uye ongororo yacho ichiratidza kuti magiramu makumi mapfumbamwe e sampuro iyi igoridhe chairo, saka:
\[ \text{Percent Purity} = \left( \frac{90g}{100g} \right) \times 100\% = 90\% \]
3. Kuongorora Makemikoro: Murabhoritari, nyanzvi yemakemikari inogona kuona kuti chinhu chinoshandiswa nemakemikari chine hutsanana hwe95%. Neruzivo urwu, vanogona kuverenga huwandu hunodiwa kuti pave nemhinduro, vachifunga nezve chero tsvina iripo.
Zvinhu Zvinokanganisa Kururama Kwekuyera
1. Midziyo: Kururama kwezvishandiso zvekuyera zvakaita sezvikero, pH metres, kana spectrophotometers kwakakosha. Kukanganisa kwekugadzirisa kunogona kukonzera kusarongeka kwekuverenga kuchena.
2. Nzira yeKutora Samples: Nzira dzekutora samples dzisingamiriri dzinogona kukanganisa mhedzisiro yekuongorora. Iva nechokwadi chekuti sampuro dzatorwa zvisina tsarukano kana kuti zvichienderana nemitemo yakakodzera.
3. Nzvimbo: Zvinhu zvakaita sekupisa, hunyoro, uye chiedza zvinogona kukanganisa kugadzikana kwemuenzaniso, kunyanya kana paine makemikari anokonzera kushushikana.
4. Kusachena: Kuziva nekuyera tsvina nemazvo kwakakosha. Kusachena kumwe kungasaonekwa nenzira dziri nyore dzekuongorora uye kunoda nzira dzakaoma.
Mhedziso
Kuchena chikamu chinhu chakakosha chinosarudza mhando, kushanda zvakanaka, uye kuchengetedzeka mumashandisirwo akawanda emaindasitiri nesainzi. Kunzwisisa pfungwa iyi uye maverengerwo ayo nemazvo kunogona kupa ruzivo rwakakosha uye kubatsira kudzivirira matambudziko mazhinji anogona kumuka kubva mukushandisa zvinhu zvisina kuchena. Kubva kumarabhoritari ekutsvagisa kusvika kumafekitori ekugadzira, kuchena kwezvinhu chinhu chakakosha chisingafanirwe kufuratirwa. Nekuverenga kwakakodzera uye matekiniki ekuongorora, tinogona kuve nechokwadi chemhando yepamusoro uye kuderedza njodzi dzinosanganisirwa nekushandiswa kwemakemikari nezvimwe zvigadzirwa.
