Hlis: Tej zaum 2019

Yuav ua li cas xaiv qhov zoo PSI qhov chaw khov osmometer

Ua ntej, osmotic siab yog dab tsi? Lub semipermeable membrane yog sib cais, ib qho yog cov kuab tshuaj, thiab lwm yam yog cov tshuaj, thiab cov dej permeates los ntawm semipermeable membrane mus rau sab tov. Lub siab siv rau sab kev daws teeb meem los tiv thaiv kev txav ntawm cov dej yog hu ua osmotic siab. Yog vim li cas

Qhia rau kev siv tapping homogenizer

1. Sterile homogenizer Disconnect lub hwj huam mov thiab disconnect lub plug yog hais tias nws tsis siv rau lub sij hawm ntev. Tiv thaiv kev laus ntawm cov khoom siv hluav taws xob hauv lub aseptic homogenizer. 2. Tsis txhob qhib lub qhov rooj sterile homogenizer thaum ua hauj lwm ntawm lub phaj rauj kom tsis txhob overflow ntawm cov qauv kua. Nws yuav tsum tau tsim

yuav ua li cas siv lub pipette

Pipettes yog cov cuab yeej siv feem ntau siv hauv cov chaw sim tshuaj lom neeg thiab tshuaj lom neeg kom tshem tawm cov kua qaub. Qhov zoo yog yooj yim rau kev khiav lag luam thiab siab raug. Nrog nws, kev sim pipetting tsis yog lub ntsiab lus tseem ceeb rau kev soj ntsuam yuam kev. Rau cov khoom koj yuav tsum paub txog pipettes, saib hauv qab no! 1. Lub pipette yog ib qho kev kho dua tshiab

Yuav ua li cas tshem tawm qhov kev ua yuam kev hauv qhov kev sim?

Qhov kev ua yuam kev tsis tu ncua tseem hu ua qhov yuam kev tsis tu ncua. Nws yog tias nyob rau hauv qee yam kev ntsuas, thaum rov ntsuas qhov ntsuas qhov qub, qhov loj thiab qhov cim ntawm qhov yuam kev tus nqi (tus nqi zoo lossis qhov tsis zoo) tsis hloov pauv; los yog thaum tus mob hloov, nws hloov raws li ib txoj cai lij choj. yuam kev; tus

Cov dej qab ntsev siab yog dab tsi?

Cov dej qab ntsev siab yog dab tsi? Cov dej khib nyiab siab yog hais txog cov dej khib nyiab nrog tag nrho cov ntsiab lus ntsev tsawg kawg yog 1%. Nws yog tsuas yog los ntawm cov nroj tsuag tshuaj thiab roj thiab roj sau thiab ua. Cov dej khib nyiab no muaj ntau yam khoom (xws li ntsev, roj, organic hnyav hlau thiab cov khoom siv hluav taws xob). Kev kho cov dej qab ntsev siab: evaporation method, electrochemical

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