Test tube quality

Chromatography Forum: GC Archives: Test tube quality
Top of pagePrevious messageNext messageBottom of pageLink to this message  By Tom from Jersey on Monday, February 26, 2001 - 09:08 am:

I have always used Pyrex or Kimble-Kontes 16 X 125 screw top test tubes to form methyl esters of various compounds but lately I have had a horrible time keeping them from leaking. I've tried both manufacturers, other caps, foil, etc etc but about one in ten leak causing the BF3/MeOH to evaporate. My heating blocks have 16mm openings so I would like to stick to that size if possible. Are there any remedies out there?


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