Sample containment 2 mL polypropylene snap style vials (100/pk) Clear snap style caps with polypropylene septa (100/pk) 5182-0542 2 mL polypropylene screw style vials (100/pk) 9mm screw style cap with polypropylene/silicone screw septa (100/pk) Solvents Lab ultrapure LC/MS water 5191-4498