Bottle Material: High Borosilicate Glass; Cap Material: Plastic; Septa Material: PTFE, Silicone; Septa Color: Red, White; Bottle Color: parent; Cap Color: Blue; Capacity: 2mL; Bottle Mouth Outer Diameter: 9.3mm / 0.4 inch; Bottle Size: 25.5 x 11.6mm / 1 x 0.5 inch (H * OD); Total Height: 34mm / 1.3 inch; Advantage: HPLC vials have heat resistance and high chemical resistance and are suitable for accommodating reagents with acidic, neutral, and alkaline pH values. Lab vials feature a screw design that ensures a consistent seal. Silicone septa and PTFE provide an evaporation-tight seal for compound sample storage in the chemical industry and research laboratories. Instruction: Twist off the cap, pour the liquid into the bottle, and close the cap at . This vial has white printed graduations and a large writing area for sample identification or labeling. Our HPLC vials are suitable for common autosampler. Application: Lab vial is suitable for HPLC, , LC/MS applications, and high-throughput analysis for reliable results. Sample vials can be used on all common automatic stamper for thin-neck bottles. The vials come with pre-slit septa that allow for easy needle penetration and sample extraction without the need for additional tools or equipment. Note: Please check the size carefully before purchasing. Lab vial is suitable for HPLC, , LC/MS applications, and high-throughput analysis for reliable results. Sample vials can be used on all common automatic stamper for thin-neck bottles. Bottle Material: High Borosilicate Glass. Cap Material: Plastic. Septa Material: PTFE, Silicone Septa Color: Red, White Bottle Color: parent Cap Color: Blue Capacity: 2mL Bottle Mouth Outer Diameter: 9.3mm / 0.4 inch Bottle Size: 25.5 x 11.6mm / 1 x 0.5 inch (H * OD) Total Height: 34mm / 1.3 inch [Durable Glass Bottle]HPLC vials have heat resistance and high chemical resistance and are suitable for accom