Haeba boima, tšenyo, ho se sebetse ka holim'a metsi, le\/kapa litšenyehelo tsa ho lahla tsa vial ea khalase, vial e entsoeng ka polypropylene ke mokhoa o mong oa ho nahaneloa. Melemo ea thepa ea polypropylene e kenyelletsa litekanyetso tse tlaase tsa ho ntšoa, ho lumellana le li-solvents tse ngata, tse loketseng ho sebetsa le liprotheine, tse loketseng bakeng sa lisebelisoa tsa ion chromatography, tse loketseng ho boloka mohlala oa pH-sensitive, le ho felisa tlhokahalo ea ho kenngoa nakong ea microsampling.