I-9mm Isikulufa i-conical micro-vial yokuhlolwa kwe-lab chromatography, usayizi we-micro-vial ngu-11.6x32mm. Ibhodlela yengilazi yekhwalithi ephezulu yokuhlaziywa kwe-HPLC\/GC. 0.3 ml ecacile noma e-amber ingilazi encane efakwe ku-vial yengilazi engu-2ml.