If the sample is scarce, 2ml snap top hplc vial can be used with micro-insert. 2ML Snap Top HPLC Vials for Aijiren Tech Size: 2 mL, 12 x 32 mm, used for any 11 mm bayonet or crimp cap, unique packaging, reducing bottle breaks, ensuring complete sealing around the bottle mouth, precise processing of the bottleneck ca