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Our reagent bottle caps provide closed system safety for the top of your system.

Reagent Bottle Caps

Reagent Bottles

Open solvent bottles sitting on top of HPLC machines leak vapors. Over time as chemicals evaporate concentrations change inside the bottle and that can affect chromatography results. What’s more, open solvent bottles can leak toxic, flammable vapors into the air people breathe. Trying to seal the bottles with foil or parafilm doesn’t help. Finally, if the bottles get knocked over the fumes get worse.  
Reagent bottle caps from Argento Scientific provide these features:

  • Ensures reagent bottles are sealed

  • Compatible with GL45 bottles

  • Integrated PTFE filters - the entering air is filtered so not contaminated

  • Prevents spills with Duck-bill check valves - even if the bottles are knocked over

  • Secure tubes in place

  • Prevent pumps from cavitating

  • Block vapors from evaporating (to preserve concentrations)

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