Cov txheej txheem:
- Vim li cas murexide yog qhov ntsuas tsim nyog?
- PH ntau ntawm murexide ntsuas yog dab tsi?
- Koj ua qhov ntsuas murexide li cas?
- Qhov ntsuas twg yog siv hauv EDTA titration?
Video: Qhov taw qhia murexide yog dab tsi?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Murexide yog metal indicator for Ca, Co, Cu, Ni, Th, and rare earth metals; nws kuj yog ib tug colorimetric reagent rau calcium thiab tsawg ntiaj teb hlau. Murexide yog me ntsis soluble hauv dej, cawv, thiab ether. … Kev kuaj xyuas cov calcium yog pH 11.3, qhov siab tshaj plaws wavelength 506 nm thiab kuaj pom ntau yam 0.2-1.2 ppm.
Vim li cas murexide yog qhov ntsuas tsim nyog?
Vim li cas Murexide yog qhov ntsuas tsim nyog? … Qhov taw qhia siv yog murexide uas yog xim txawv thaum freq piv rau nws cov xim thaum nws txuas rau Ni2 ions. Murexide yog qhov ntsuas tsim nyog txij li nws khi tsawg zog rau Ni2ions dua li EDTA.
PH ntau ntawm murexide ntsuas yog dab tsi?
Murexide kuj tseem siv los ua cov tshuaj pleev xim rau kev ntsuas cov calcium thiab cov hlau tsis tshua muaj hauv ntiaj teb; rau calcium, pH xav tau yog 11.3, kev tshawb pom nyob ntawm 0.2-1.2 ppm, thiab qhov siab tshaj plaws absorbance wavelength yog 506 nm.
Koj ua qhov ntsuas murexide li cas?
A av sib tov ntawm cov hmoov dye thiab sodium chloride (NaCl) muab ib daim ntawv ruaj khov ntawm qhov taw qhia. Npaj los ntawm mixing 200 mg murexide nrog 100 g khoom NaCl thiab sib tsoo cov sib tov rau 40 mus rau 50 mesh Titrate tam sim tom qab ntxiv qhov taw qhia vim nws tsis ruaj khov nyob rau hauv alkaline tej yam kev mob.
Qhov ntsuas twg yog siv hauv EDTA titration?
EDTA luv luv rau ethylenediaminetetraacetic acid. Ib xim xiav hu ua Eriochrome Black T (ErioT) yog siv los ua qhov taw qhia. Qhov xiav dye no kuj tsim ib txoj hauv kev nrog cov calcium thiab magnesium ions, hloov xim ntawm xiav mus rau liab hauv cov txheej txheem. Cov dye-hlau ion complex tsis ruaj khov dua li EDTA-hlau ion complex.
Pom zoo:
Dab tsi yog qhov taw qhia?
Ib qho taw qhia yog ib daim ntawm cov ntaub ntawv kev lag luam uas sib haum nrog kev txav mus tom ntej lossis hloov pauv hauv qee qhov xwm txheej txaus siab. Kev ntsuas kev lag luam tuaj yeem pab kwv yees thiab kwv yees cov xwm txheej yav tom ntej thiab cov qauv hauv kev lag luam, kev lag luam, thiab kev lag luam .
Dab tsi yog qhov taw qhia ntawm kipping rub ups?
Kev rub tawm yog siv tau vim tias nws hloov chaw pib ua haujlwm ntawm rub mus rau lwm lub cev, tab sis cov quab yuam tseem yuav dhau mus lub bar thiab lub xub pwg thaum lub hauv caug ntawm lub viav vias Lub xub pwg ces khaws lub zog zoo li lub caij nplooj ntoos hlav thiab hloov nws rov qab rau hauv qhov bar thiab lub cev kom nce siab .
Dab tsi yog qhov taw qhia eutectic hauv lyophilization?
Qhov kub eutectic (triple point) yog qhov kub uas koj tus qauv tsuas muaj nyob rau theem khoom. Yog tias koj cov qauv khov mus rau qhov kub siab tshaj qhov kub ntawm eutectic, nws yuav pib yaj . Yuav ua li cas rau hauv lyophilization?
Dab tsi yog qhov taw qhia ntawm kev cuam tshuam hauv kev lag luam?
Ib qho taw qhia tsis txaus ntseeg yog ib qho xwm txheej uas ua rau muaj kev hloov pauv tseem ceeb hauv kev vam meej ntawm lub tuam txhab, kev lag luam, kev lag luam, kev lag luam, lossis qhov xwm txheej ntawm thaj chaw thiab tuaj yeem suav tias yog qhov hloov pauv.
Kuv qhov taw qhia antipodal yog dab tsi?
Nyob rau hauv lej, cov ntsiab lus antipodal ntawm ib tus kheej yog cov diametrically opposite rau ib leeg(qhov tshwj xeeb ntawm cov ntsiab lus no yog cov kab kos los ntawm ib qho mus rau lwm qhov. los ntawm qhov nruab nrab ntawm tus kheej thiaj li tsim ib txoj kab uas hla tseeb).
