buy economical 15mL cod vials with flat bottom
Kinesis Shell Vial, 15 mm, Glass, Flat Bottom, 4 mL, with PE Plug
Shell vials are an economical choice for many routine HPLC applications. Polyethylene plugs give a tight seal yet are easy to insert or remove.
headspace vials, sample storage vials, epa voa toc vials – Aijiren
VH0613, 6ml Clear Crimp-top Headspace Vial, Flat Bottom, 22*38mm, 5.0 type (6ml Karl COD-V50-150, 15ml Clear Test Tube for Water Analysis, Round Bottom, …
16mm COD Test Tube for Water Analysis – Hplc ...