Nyob rau hauv qhov kev ua haujlwm txhawb ntawv, peb yuav pom tias PET yog qhov tseem ceeb, uas yog lub npe rau polyethylene terephthalate. Vim no yog qhov plastic tseem ceeb uas siv rau hauv cov kab mob thiab cov khoom siv ntau yam. Kev txhawb ntawv PET yog qhov tseem ceeb vim nws pab txhawb kom muaj qhov tsis zoo thiab sau cov khoom siv. Tiamsi, tsis ...
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Polymer yog li ntawv tshiab uas tau siv rau hauv ntau yam khoom uas peb pom txhua hnub. Lawv muaj cov qhia txog kev sib sau, xws li qhov nyuaj los yog qhov nyuaj heev, thiab qhov no cuag rau kev siv hauv ntau yam. Thaum peb xav kuaj qhov loj los yog qhov nyuaj ntawm polymer so...
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Thaum kuaj intrinsic viscosity, qhov tseem ceeb tshaj plaws yog ua raws li qhov tseem ceeb. Intrinsic viscosity pab peb paub qhov loj los yog qhov nyuaj ntawm daim duab, thiab qhov no tseem ceeb rau hauv ntau yam tswv yim, xws li tswv yim ntawv thiab plastic, yog li ZONWON xav paub qhov tseem ceeb ntawm cov m...
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Kuaj cov khoom tshiab yog qhov tseem ceeb rau kuaj intrinsic viscosity ntawm cov khoom. Intrinsic viscosity pab peb paub qhov loj los yog qhov nyuaj ntawm daim duab, thiab qhov no tseem ceeb rau hauv ntau yam tswv yim, xws li tswv yim noj, tswv yim kho mob, thiab plastic. Yog...
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Kev tswj hwm qhov zoo (QC) yog qhov tseem ceeb heev rau kev paub tias cov khoom siv tau txais cov kev tswj hwm txaus. Rau cov thawj kawm uas sib tham nrog cov khoom siv polymer, li cas ZONWON, kev tswj xyuas cov khoom siv uas siv yog qhov tseem ceeb. Cov khoom siv ib yam uas pab heev rau no yog cov...
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Thaum peb pab neeg hais txog cov polymer, peb yog hais txog cov khoom siv uas muaj cov molekuel ntev. Cov polymer tuaj yeem pom hauv txhua qhov, los ntawm cov kab mob plastic mus rau cov rooj, thiab cov khoom siv rau lub xeem. Qhov tseem ceeb uas peb xav paub txog cov polymer yog qhov viscosity. Visc...
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Qhov intrinsic viscosity yog qhov tseem ceeb hauv qhov kev hais txog cov polymer. Thaum peb hais txog cov polymer, peb hais txog cov molekuel loj uas muaj cov unit ntau yam. Lawv siv rau ntau yam khoom siv, li cas cov kab mob plastic, cov khoom siv rau lwm tus, thiab cov rooj. Paub txog qhov intrinsic v...
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Yog li cas koj tuaj yeem tswj xyuas cov lus piav txog kev siv pipette rau cov lus uas muaj protein ntau? Thaum ua haujlwm nyob rau hauv lub tsev ciaj ciaj, cov neeg sib txawv yuav tsum muab dej los ntawm qhov twg mus rau qhov twg thiab siv cov khoom uas hu ua pipette. Cov khoom no pab tau rau kev ntsuas thiab muab dej los ntawm qhov twg mus rau qhov twg...
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Cov pipette yog cov khoom tseem ceeb uas siv rau hauv cov tsev ciaj ciaj rau kev ntsuas thiab muab dej los ntawm qhov twg mus rau qhov twg. Thaum peb ntsuas cov pipette, peb xav kom lawv ua haujlwm zoo heev. Kev ntsuas yog li kev tsim cov khoom sib thaj; nws pab kom paub tias cov pipette...
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Kev kawm txog ISO 8655 yog qhov tseem ceeb rau kev paub tias cov pipette yuav ua haujlwm zoo thiab muaj kev txiav txim tshwj xeeb. Cov pipette yog cov khoom uas siv rau hauv cov tsev kho mob rau kev ntsuas thiab kev yuam kev dej. Yog tias lawv tsis ua haujlwm zoo, nws yuav ua rau muaj kev puas tsuaj loj rau hauv cov kev sim thiab cov kev ntsuas. ...
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Thiab yuav tsum siv lub tshuab ntsuas kom tsis muaj qhov tshuaj ntsuas nyob rau hauv cov hauv tsev kawm, especially cov hauv tsev kawm uas muaj kev tswj hwm los ntawm Good Manufacturing Practices (GMP), vim tias cov tshuab ntsuas no yuav pab tshem tsoom kom tsis muaj qhov tshuaj ntsuas rau cov lus qhia thiab cov kev ua lej. Qhov tshuaj ntsuas yuav pab tshem tsoom kom tsis muaj qhov tshuaj ntsuas...
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Hauv cov laboratori rau kev tham luas, lub tswv yim nres ntaub ntawv li cas yog qhov tseem ceeb heev. Cov neeg tham luas xav tau ua siab ntau thaum nres cov ntaub ntawv ntsuab, los sis microliter. Yog tias lawv tsis nres raws li qhov tseeb, nws yuav pab cuam rau kev pom zoo tsis tseeb. Vim li no, ua haujlwm siv cov khoom...
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