Brand new gc ms vials and caps aijiren Technology [product solution] aijiren Technology Corporation Figure 1Vial cleanliness tested by MS. Vials were soaked in mobile phase for 2 hours before run-through a mass spec in scan mode. m/z 200 250 300350 400 450500 550 600 650 700 750 800 850 900 950 1000 % 0 100 % 0 100 aijiren Technology polypropylene vial with septa-less