网页4ml Flat Bottom Autosampler Vial Certified Technical Grade. 4ml Routine Amber Vial for Sigma-Aldrich Professional-Aijiren. Vial, screw top, clear, deactivated (silanized), certified, 2 mL, 100/pk. Vial size: 12 x 32 mm (12 mm cap) 100Pcs 2ml Lab Amber Sample Vial,9-425 Screw-Thread 100pcs 2ml HPLC Vials 9-425 Screw Top With Pre-slit Caps For