Vim tias cov ntsiab lus lim dej yog cov lim dej pov tseg, lub luag haujlwm loj tshaj plaws hauv cov txheej txheem siv yog los tiv thaiv kev sib kis. Tsis zoo li lwm hom lim dej uas muaj cov tshuaj ntxiv uas tuaj yeem cuam tshuam cov tshuaj tiv thaiv enzymatic, cov lus qhia pipette rau cov ntaub so ntswg lim yog ua los ntawm cov ntshiab nkauj xwb sintered polyethylene. Hydrophobic polyethylene particles tiv thaiv aerosols thiab kua los ntawm kos rau hauv pipette.
Lub taub lim lub lim yog tshuab loaded los xyuas kom meej tias cov lus qhia tsis cuam tshuam tag nrho thaum lub sijhawm tsim khoom thiab ntim khoom. Lawv tau lees paub tsis pub muaj RNase, DNase, DNA thiab pyrogen paug. Tsis tas li ntawd, tag nrho cov ntxaij lim dej yog hluav taws xob ua ntej ua kom tsis muaj menyuam tom qab ntim khoom kom txhim kho kev tiv thaiv cov qauv tshuaj lom neeg.
Kev siv cov lus qhia lim tuaj yeem siv los tiv thaiv lub pipette los ntawm kev puas tsuaj los ntawm cov qauv, zoo heev txhim kho lub neej ntawm pipette.