Dab tsi yog qhov txawv ntawm pipette thiab dropper?

Droppers thiabcov pipettesyog ob qho khoom siv feem ntau siv los tuav cov kua hauv ob qho chaw kuaj thiab lub neej txhua hnub. Txawm li cas los xij, lawv pom qhov sib txawv tseem ceeb hauv kev tsim, kev siv, thiab precision.

Design thiab Structure:Ib tug pipette feem ntau yog ib lub raj me me uas muaj cov qhab nia kawm tiav, thiab nws yuav muaj qhov loj lossis qhov loj hauv nruab nrab, tsim los ntsuas thiab hloov cov kua dej ntshiab. Ib qho dropper, ntawm qhov tod tes, feem ntau muaj cov roj hmab roj hmab thiab lub hau threaded. Lub teeb roj hmab yog siv los kos rau hauv cov kua, thaum lub kaus mom ua lub foob rau lub thawv. Tus tsim ntawm lub dropper tso cai rau nws mus dispense ib tee dej ntawm ib lub sij hawm.

Kev siv thiab Precision:Pipettes yog qhov tshwj xeeb tshaj yog tsim rau kev sim kev tshawb fawb uas xav tau kev ua haujlwm siab. Droppers feem ntau yog siv rau hauv thaj chaw xws li tshuaj, ua noj, thiab kev tu tawv nqaij, rau kev faib cov kua me me. Droppers feem ntau tsis muaj cov qhab nia kawm tiav, ua rau lawv tsis tsim nyog rau kev tswj hwm cov kua ntim.

Kev siv Scenarios:Vim lawv qhov siab precision, pipettes feem ntau yog siv rau kev soj ntsuam kom muaj nuj nqis thiab kev sim ua haujlwm hauv chav kuaj. Droppers, muab lawv qhov yooj yim thiab yooj yim ntawm kev siv, yog qhov tsim nyog rau cov khoom siv hauv tsev thiab tus kheej, xws li faib cov tshuaj me me los yog cov tshuaj loog.

Thaum ob lub pipettes thiab droppers yog siv rau cov kua tuav, pipettes yog zoo dua haum rau cov xwm txheej uas yuav tsum tau high precision thiab loj ntim ntawm cov kua, whereas droppers yog zoo tagnrho rau me me, nquag koob tshuaj nyob rau hauv niaj hnub daim ntawv thov. Qhov kev xaiv ntawm ob lub cuab yeej nyob ntawm qhov kev xav tau tshwj xeeb thiab kev ua haujlwm ib puag ncig.

Daim ntawv thov tshwj xeeb ntawm Pipettes thiab Droppers hauv Kev sim tshuaj:Hauv kev sim tshuaj, pipettes thiab droppers muaj ntau yam kev siv. Nov yog qee qhov piv txwv tshwj xeeb:

Pipettes:

Kev ntsuas qhov tseeb ntawm cov kua ntim:Pipettes yog siv los ntsuas kom raug thiab hloov cov kua ntim me me, feem ntau siv hauv kev npaj cov txheej txheem kev daws teeb meem thiab ua qhov kev soj ntsuam ntau.

Kos Cov Me Me Cov Kua Dej:Pipettes tuaj yeem siv los kos cov qauv ua kua me me, tsim nyog rau kev sim ua haujlwm uas yuav tsum tau muaj kev tswj xyuas meej ntawm cov kua ntim.

Yaug:Ua ntej siv lub pipette, nws feem ntau yuav tsum tau yaug kom ntseeg tau qhov tseeb ntawm qhov kev sim. Piv txwv li, thaum yaug hauv ib lub lauj kaub loj ntawm cov dej, tus neeg siv tuav lub pipette nrog ib txhais tes thiab lub teeb ntxuav nrog lwm tus, tig lub pipette kom cov dej ntws mus rau sab hauv thiab tawm.

Droppers:

Semi-Quantitative Liquid Transfer:Droppers feem ntau yog siv rau ib nrab-quantitative kua hloov, feem ntau dispensing ntim ntawm 1 mL thiab 5 mL, nrog 2 mL yog ib txwm. Droppers tuaj yeem ntev thiab luv luv, thiab lub taub hau tuaj yeem hloov pauv kom sib txawv raws li qhov xav tau.

Kev Ua Haujlwm Titration:Hauv kev ua haujlwm titration yooj yim hauv analytical chemistry, burettes, uas yog hom kawm tiav iav ntsuas, feem ntau yog siv. Burettes yog siv los tswj tus nqi ntawm titrant ntxiv, nquag ua haujlwm hauv acid-base titrations thiab redox titrations.