Agilent 6530 reference nebulizer PEEK tubing ID

Hi all,

Recently I have been having a ton of trouble maintaining both reference ions (122 m/z and 921 m/z) throughout a run. I suspect that the PEEK tubing is the culprit and we have decided to replace it, but I can't find the specs for the internal diameter anywhere. I have two spools of PEEK tubing that are very similar in color but are slightly different shades of beige, so I think they do not have the correct ID. 

Would anyone happen to know the correct ID for the PEEK tubing that is lined to the nebulizer?


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