Ngubani ongayazi i-acetone, i-ethanol & co. iqala ukuphuma ngaphandleincam yepipettengqo emva komnqweno? Mhlawumbi, ngamnye kuthi ukhe wanamava oku. Iiresiphi eziyimfihlo ezinokuthi "zisebenza ngokukhawuleza kangangoko kunokwenzeka" ngelixa "ubeka iityhubhu kufutshane kakhulu enye kwenye ukunqanda ilahleko yeekhemikhali kunye nokuchitheka" zezomsebenzi wakho wemihla ngemihla? Nokuba amathontsi ekhemikhali abaleka ngokukhawuleza, kuye kunyanyezelwe ukuba imibhobho ayichanekanga. Utshintsho nje oluncinci kwiindlela zokusebenzisa imibhobho, kwaye ukhetho olufanelekileyo lohlobo lwe-pipette lunokunceda ukunqoba le mingeni yemihla ngemihla!
Kutheni i-pipettes ithontsiza?
Iipipettes zeClassic ziqala ukuvuza xa kubethelwa ulwelo oluguquguqukayo ngenxa yomoya ongaphakathi kwipipette. Le nto kuthiwa yi-cushion yomoya ikhona phakathi kwesampuli yolwelo kunye nepiston ngaphakathi kwepipette. Njengoko kwaziwa ngokuqhelekileyo, umoya uguquguqukayo kwaye ulungelelanisa neempembelelo zangaphandle ezifana nobushushu kunye noxinzelelo lomoya ngokwandisa okanye ukucinezela. Ulwelo lukwaxhomekeke kwiimpembelelo zangaphandle kwaye luyaba ngumphunga ngokwendalo njengoko ukufuma komoya kusezantsi. Ulwelo oluguquguqukayo luba ngumphunga ngokukhawuleza kunamanzi. Ngexesha le-pipetting, iphuphuma kwi-cushion yomoya inyanzela umva ukuba wandise kwaye ulwelo lucinezelwe ngaphandle kwencam yepayipi ... i-pipette ithontsiza.
Ukuthintela njani ulwelo ukuba lungaphumi
Enye indlela yokunciphisa okanye ukuyekisa ukuthontsiza kukufumana ipesenti ephezulu yokufuma kumqamelo womoya. Oku kwenziwa ngokumanzisa kwangaphambiliincam yepipettekwaye ngaloo ndlela kuzalise umqamelo womoya. Xa usebenzisa ulwelo oluphantsi oluguquguqukayo olufana ne-70 % ye-Ethanol okanye i-1 % ye-acetone, funa kwaye ukhuphe ulwelo lwesampulu ubuncinci amaxesha angama-3, ngaphambi kokuba ufune umthamo wesampulu ofuna ukuyihambisa. Ukuba ukuxinwa kolwelo oluguquguqukayo kuphezulu, phinda le mijikelo yokumanzisa kwangaphambili amaxesha angama-5-8. Nangona kunjalo, ngoxinzelelo oluphezulu kakhulu olufana ne-100 % ye-ethanol okanye i-chloroform, oku akuyi kwanela. Kungcono ukusebenzisa olunye uhlobo lwe-pipette: i-pipette yokufuduka efanelekileyo. Ezi pipette zisebenzisa iingcebiso ngepiston edibeneyo ngaphandle kwe-air cushion. Isampulu inxibelelana ngqo nepiston kwaye akukho mngcipheko wokuvuza.
Yiba yincutshe kwimibhobho
Unokuphucula ngokulula ukuchaneka kwakho xa ufaka umbhobho ulwelo oluguquguqukayo ngokukhetha ubuchule obuchanekileyo okanye ukuguqula isixhobo osisebenzisayo. Ukongeza, uya kwandisa ukhuseleko ngokunqanda ukuchitheka kunye nokwenza lula ukuhamba kwakho komsebenzi.
Ixesha lokuposa: Jan-17-2023