Dab tsi wavelength ua bromophenol xiav nqus?
Dab tsi wavelength ua bromophenol xiav nqus?

Video: Dab tsi wavelength ua bromophenol xiav nqus?

Video: Dab tsi wavelength ua bromophenol xiav nqus?
Video: Ua Dab Tsi Txhaum Koj - David Yang (New Song 2021) 2024, Kaum ib hlis
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Cov txiaj ntsig tau pom tau tias qhov siab tshaj plaws nqus ntawm lub teeb bromophenol xiav tshwm sim nyob rau hauv wavelength ntawm 590nm ua.

Hauv qhov no, puas yog bromophenol xiav soluble hauv dej?

Bromophenol Xiav Cov khoom Soluble nyob rau hauv sodium hydroxide, cawv, benzene, thiab acetic acid. Me ntsis soluble nyob rau hauv dej . Stability: ruaj khov.

Tsis tas li ntawd, bromophenol xiav ua haujlwm li cas? Bromophenol Xiav yog pH qhov taw qhia, thiab cov xim dye tshwm raws li qhov muaj zog xiav xim. Bromophenol xiav muaj qhov tsis zoo me ntsis thiab yuav txav mus rau tib qho kev taw qhia zoo li DNA, tso cai rau tus neeg siv los saib xyuas qhov kev nce qib ntawm cov molecules txav los ntawm gel. Tus nqi ntawm kev tsiv teb tsaws txawv nrog gel muaj pes tsawg leeg.

Yog li ntawd, ua li cas koj yaj bromophenol xiav?

Dissolve 5,0g ua bromophenol xiav hmoov (tetrabromophenolsulfonphthalein) hauv 74.5 mL ntawm 0.1 N sodium hydroxide (NaOH) tov. Dilute nrog purified dej mus rau 500 mL. Xim thiab pH ntau: daj 3.0-4.6 xiav.

Puas yog bromophenol xiav khi rau DNA?

Bromophenol xiav yog ib qho xim siv los taug qab me me DNA strands muaj txog 400 lub hauv paus khub, thaum xylene cyanol zoo dua rau qhov loj DNA strands nrog txog 8,000 puag khub. Cov dye xaiv yuav tsum tsis txhob reactive los yog hloov cov DNA.

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