Chinyorwa
Nei chiyero chehuwandu hwemethylene blue chichigona kupfuura 100%
Chiyero chehuwandu hwemethylene blue che101.0% mugumisiro wakashumwa wekuongorora. Hazvirevi kuti 100 g yezvinhu ine 101 g yemethylene blue chaizvo. Kuti uchidudzire, tsvaga kuti chii chakayerwa, huremu hupi hwezvinhu hwakashandiswa pakupatsanura, uye kuti rabhoritari yakaverenga sei mugumisiro wacho.
Tsananguro yeUSP yemethylene blue inotaura kuti chiyero chehuwandu chinofanira kuva pakati pe97.0% ne103.0%, chichiverengwa pahwaro hwezvinhu zvakaomeswa. Iyi ndiyo miganhu yekugamuchirwa pabvunzo yakatarwa. Haisi kutaura kuti kuchena chaiko kunogona kupfuura 100%, uye haisi miganhu yekusava nechokwadi kwechiyero chose cherabhoritari.
Tanga nehuwandu hunoshandiswa pakupatsanura
Mugumisiro wezvinhu sezvazvakagamuchirwa unoreva zvinhu zviri muchimiro chazvo pazvakagamuchirwa, kusanganisira mvura yazvo. Mugumisiro pahwaro hwezvinhu zvakaomeswa unobvisa huremu hunorasika pasi pemamiriro ek drying akatarwa pahuwandu hunoshandiswa pakupatsanura. Unoratidza huwandu hwechinhu chiri kuyerwa zvichienzaniswa nezvinhu zvinenge zvasara.
Mashoko aya anoda kungwarirwa. Chitsauko cheUSP pamusoro pekurasika kwehuremu pakuomesa chinotsanangura chiyero ichi maererano nezvinhu zvinogona kuva mhute zvinobviswa pasi pemamiriro akatarwa. Kurasika kwehuremu pakuomesa hakungorevi kuyerwa kwemvura chete. Zvimwe zvinhu zvinogona kuva mhute zvinogonawo kubatsira pakurasika uku. Shandisa nzira chaiyo nehwaro hwekushuma zviri pachitupa.
Pakugadzirisa kuri nyore, apo migumisiro yechiyero chehuwandu nekurasika kwehuremu pakuomesa iri yezvinhu zvimwe chete uye chinhu chiri kuyerwa chisina kurasika:
Chiyero chehuwandu pahwaro hwezvinhu zvakaomeswa (%) = chiyero chehuwandu sezvakagamuchirwa (%) × 100 / 100 − kurasika kwehuremu pakuomesa (%)
Kushandura uchidzokera kumashure kunoitwa seizvi:
Chiyero chehuwandu sezvakagamuchirwa (%) = chiyero chehuwandu pahwaro hwezvinhu zvakaomeswa (%) × 100 − kurasika kwehuremu pakuomesa (%) / 100
Usagadzirisa zvakare mugumisiro wakatoshumwa pahwaro hwezvinhu zvakaomeswa.
Muenzaniso une masvomhu: sampuli imwe, maperesenti maviri akarurama
Ngatitii sampuli yekufungidzira ye100 g ine 88 g yemethylene blue, ichiratidzwa sechloride isina mvura, 10 g yemvura, uye 2 g yezvimwe zvinhu zvakasimba zvisingavi mhute. Fungidzira kuti kuomesa kunobvisa mvura chete pasina kurasika kana kushandurwa kwedhayi. Huwandu uhu ndehwekudzidzisa, kwete migumisiro yeboka rechigadzirwa rakagadzirwa.
| Huwandu | Sezvakagamuchirwa | Mushure mekubvisa mvura pakuverenga |
|---|---|---|
| Methylene blue | 88 g | 88 g |
| Mvura inoverengwa pahuwandu hunoshandiswa pakupatsanura | 10 g | 0 g |
| Zvimwe zvinhu zvakasimba zvisingavi mhute | 2 g | 2 g |
| Huwandu hwose hunoshandiswa pakupatsanura | 100 g | 90 g |
| Chikamu chemethylene blue | 88 / 100 × 100 = 88.0% | 88 / 90 × 100 = 97.78% |
| Chikamu chezvimwe zvinhu zvakasimba | 2 / 100 × 100 = 2.0% | 2 / 90 × 100 = 2.22% |
Zvikamu zvezvinhu zvakaoma zvinokwana 100% kana zvabatanidzwa. Chiyero chehuwandu chakakwirira hachina kubvisa zvimwe zvinhu zvakasimba kana kuwedzera huwandu hwedhayi. Chakashandura kuenzanisa kubva pasampuli yose yakagamuchirwa kuenda pachikamu chayo chakaoma.
Nenzira inodzokera kumashure, mushumo unoratidza chiyero chehuwandu che99.0% pahwaro hwezvinhu zvakaomeswa uye kurasika kwehuremu pakuomesa kwe12.0% unoreva chiyero chehuwandu sezvakagamuchirwa che99.0 × 0.88 = 87.12%, kana fungidziro dzinoshandiswa nenzira yacho dziri dzechokwadi. Kuenzanisa 87.12% iyoyo zvakananga nemugumisiro wemumwe mutengesi we99.0% pahwaro hwezvinhu zvakaomeswa kunenge kuri kuenzanisa huwandu hwakasiyana.
Mvura inogona zvakare kuva chikamu chechimiro chekristaro chine mvura. Musiyano pakati pemethylene blue trihydrate nezvinhu zvisina mvura unotsanangura kuti nei huremu hunobva pafomura nehwaro hwechiyero chehuwandu zvichifanira kuenderana. Mashoko ekuti chinhu chine mvura yakabatana nacho haatsivi mugumisiro wemvura kana wekuomesa weboka racho chairo.
Nei chiyero chehuwandu chakashumwa chichigona kupfuura 100%
Kuverenga huremu hwakaoma nemazvo uchishandisa zviyero zvakanyatsorurama hakugoni kushandura chikamu chehuremu chaicho kuti chipfuure 100%. Mugumisiro unopfuura muganhu iwoyo unobva pamawanirwo efungidziro yekuongorora, kusanganisira kusava nechokwadi kwechiyero, kutsauka kunobvira, kana dambudziko rekushuma kana rekuverenga.
Chiziviso chepamutemo cheUSP chekugadziridzwa chaSeptember 2023 chinotsanangura bvunzo yehuwandu inoenzanisa chiratidzo chesampuli muliquid chromatography nechinhu chekuenzanisa chakatarwa. Uku kuyera kunoshandisa kuenzaniswa kwechishandiso nechiyero chinozivikanwa, kwete kupatsanura nekuyera huremu hwechinhu chose chiri muupfu. Kukosha kwakatarirwa chinhu chekuenzanisa, kuyera huremu, kusanganisa nemvura kana chimwe chinonyungudutsa, chiratidzo chechishandiso, uye kugadzirisa kunoenderana nekuomesa zvinogona kukanganisa fungidziro yakashumwa.
Funga nezvesampuli yechipiri yekufungidzira: 90 g yemethylene blue uye 10 g yemvura. Chikamu chayo chaicho pahwaro hwezvinhu zvakaoma i100%. Kana chiratidzo chebvunzo yehuwandu chiri 1% pamusoro pechaicho uye kugadzirisa kwekuomesa kuri kunyatsorurama, nzira yacho inofungidzira huwandu hwakaenzana ne90.9 g mu100 g yepakutanga. Kugadzirisa fungidziro iyoyo kunopa 90.9 / 90 × 100 = 101.0%. Iyo 0.9 g yakawedzerwa kufungidzira kwakanyanya, kwete zvimwe zvinhu zvakawedzerwa.
Tsananguro yeNIST yekusava nechokwadi pakuyera inosiyanisa fungidziro yakayerwa neruzivo rwakanyatsorurama rwehuwandu hwacho chaihwo. Rabhoritari inofanira kuongorora kusava nechokwadi kwezviyero zvayo. Chirevo che97.0% kusvika 103.0% hachiratidzi kuti nzira yacho ine “kusava nechokwadi kwe±3%.” Uyewo mugumisiro wakakwirira hauratidzi kuti wakakonzerwa nekuchinja-chinja kusingarongeki. Migumisiro inoramba yakakwirira inoda kuti paongororwe kuenzaniswa kwezvishandiso nezviyero zvinozivikanwa, kugadzirirwa kwesampuli, zvinhu zvinoshandiswa pakugadzirisa masvomhu, uye hwaro hwekuverenga.
Tsananguro pfupi yechikumbiro cheUSP cha2026 inotaura pachena kuti chikumbiro chinobva mushanduro yepamutemo yaSeptember 2023. Kugadziridzwa kuri kukumbirwa hakufaniri kutorwa sechinodiwa chebvunzo chakatotanga kushanda nokungoti zuva racho nderepashure.
Huwandu hwedhayi nekuchena kunoyerwa nechromatography zvinopindura mimwe mibvunzo
“Huwandu hwedhayi” hunoda nzira nehwaro zvakataurwa. Semuenzaniso, zvinodiwa zveSigma-Aldrich M9140 zvinonyora huwandu hwedhayi hunenge 82% kana kupfuura padhayi ine mvura yakabatana nayo inoshandiswa pakupenda sampuli dzezvinhu zvipenyu. Muganhu iwoyo wepasi hausi huwandu hwakayerwa paboka rimwe nerimwe. Hautauri kuti zvakasara kusvibiswa kune ngozi, uye hauratidzi kuenzana nezvinodiwa zvezvinhu zvemishonga.
Saizvozvowo, peresenti yenzvimbo yepamusoro pechiratidzo chechromatography inopatsanura nzvimbo yechiratidzo chimwe chakaonekwa nehuwandu hwakatarwa hwenzvimbo dzezviratidzo. Haingopatsanuri huremu hwemethylene blue nehuremu hwesampuli yose. Nhungamiro yeUSP yekutumira mashoko echromatography inosiyanisa kuverenga zvichienderana nenzvimbo dzese dzezviratidzo nekuverenga uchishandisa chinhu chekuenzanisa chekunze, uye inotsanangura zvinhu zvinogadzirisa kusiyana kwezviratidzo, nokuti huremu hwakaenzana hunogona kupa zviratidzo zvakasiyana pachishandiso chinoona zvinhu.
| Chinhu chiri mumushumo wemuenzaniso | Zvinoratidzwa nemasvomhu | Zvisingaratidzwi nawo |
|---|---|---|
| Nzvimbo yechiratidzo chikuru 990,000; huwandu hwenzvimbo dzakabatanidzwa 1,000,000 | 99.0% yechiratidzo chose chakaverengwa chikabatanidzwa | 99.0% yehuremu hweupfu hwakagamuchirwa |
| Nzvimbo yechiratidzo chechinhu chisina kuchena 10,000; huwandu hwenzvimbo dzakabatanidzwa 1,000,000 | 1.0% yenzvimbo pasi penzira iyoyo yekubatanidza zviyero | 1.0% yehuremu pasina hukama hunodiwa pakati pehuremu nechiratidzo |
| Element yakayerwa pa5 mg/kg | Zvikamu 5 pamiriyoni nehuremu, kana 0.0005% | Kukosha kunogona kubviswa zvakananga paperesenti yenzvimbo isina hukama nacho |
Chishandiso chinoona zvinhu chingasayera mvura, munyu isiri yeorganic, kana chinhu chose cheorganic chinosvibisa pasi pemamiriro akasarudzwa. Nokudaro, bvunzo dzakasiyana dzehuwandu dzinogona kuva nemigumisiro iripo pamwe chete isingabatanidzwi zvakananga kuti ikwane 100%. Mugumisiro wezvinhu zvisina kuchena zveorganic, kuongororwa kwemaelement, uye kurasika kwehuremu pakuomesa zviyero zvinowedzerana ruzivo.
Verenga mugumisiro sechikamu chemushumo
Shandisa nhungamiro yekuverenga chitupa chekuongorora kutsvaga kuzivikanwa kweboka, nzira, hwaro hwekushuma, mugumisiro wakayerwa, uye muganhu wekugamuchirwa. Chengeta mugumisiro wega wega pamwe chete nemayuniti awo nehuwandu hwakashandiswa pakupatsanura. Pakuverenga zvinonyungudutswa murabhoritari, chishandiso chekuverenga molarity yemethylene blue chinotaura pachena fungidziro dzechimiro chezvinhu nedzechiyero chehuwandu.
Chiyero chehuwandu che101% chinogona kusangana nezvinodiwa zvechiyero chehuwandu asi imwe bvunzo inodiwa ichitadza. Chiyero chehuwandu che99% hachigoni kuratidza kusava netupukanana, huwandu hunogamuchirwa hwemaelement asina kuchena, kana mvumo yechigadzirwa. Zvinorehwa nemethylene blue yegiredhi reUSP zvinoenderana nezvinodiwa zvinoshanda zvose pamwe chete. Kuenzanisa kunobatsira kweunhu kunobvunza kana zvinhu zvine zvinyorwa zvinotsigira zvichisangana nezvinodiwa izvozvo, pane kuronga vatengesi zvichienderana neperesenti yakakura kupfuura dzimwe.