8-425 HPLC Glass Vials with Caps for aijiren Technology. The aijiren 8-425 screw cap and vial are suitable for aijiren Technology and other rotating or robotic arm samplers. The specifications for the 8-425 HPLC sample vial are 12 x 32 mm. The opening of the 8-425 HPLC sample vial certified headspace gas chromatography with cap aijiren Technology