vials with caps in clear for HPLC and GC manufacturer Aijiren Technology-Aijiren Hplc Vials. LC GC Amber Glass 12 x 32mm Screw Neck Vial, with Cap and PTFE Septum, 2 mL Volume, 100/pkg Part Number: 186000846C Aijiren Technology Certified vials are tested for cleanliness by HPLC and held to tightest dimensional tolerances in the industry. Get Price.