Iyo yakarukwa vial cap inogona kuve nekuvhurwa kwekushandisa autosampler uye yakajairwa yekuwedzera, kana polypropylene cap uye membrane inogona kupihwa. Aya mapierceable screw caps akagadzirirwa kushandiswa-nguva imwe chete, uye nekuda kwekuti hapana zvivharo uye zvisimbiso zvekuungana, nguva yekugadzirira yemuenzaniso inoderedzwa.