Q/A on Gas tight syringes

[stefanbg]

Hi

I am using a 250 uL gas tight syringe (from Vici) with an integrated valve to seal the sample in the syringe. I take out a sample from the headspace of bottles in which the gas is under pressure (0-2barg).

My concern is that I wont know if my syringe starts leaking. Do any of you have ideas how I might perform a check of the syringe.

StefanBG

[Don_Hilton]

Do you have a reference sample that is always made up the same way - including pressure in the vial? If so, would consistancy of the results of that sample work?

[chromatographer]

Maybe you could immerse the syringe under water and press down on the plunger to see if it leaks from the needle or passes by the plunger seal.