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Here is a US source for sterile saline

I would like to update everyone that Invitrogen sells D-PBS (equivalent to isotonic 0.9% w/v saline) in 500 mL size for $12.25. You can use 31 gauge BD insulin microfine injection needles. The catalog number is 14190-144 and it should be easy to purchase from them. Also, it is used for tissue culture so it is pre-sterilized and is pH buffered (not that it really matters at these small injection volumes). The website is found at catalog.invitrogen.com. The container should be frozen after each use or aliquoted after the first use to prevent contamination of the whole 500 mL solution. Also, try to maintain proper sterile technique like pouring into another smaller container, then, drawing syringe from this container to minimize cross contamination (try to do aliquoting in a sterile laminar flow hood, just joking!). Cross contamination could result from repeated syringe intakes from original 500 mL vessel (Do not do this!) and could create an injection site infection.

I hope that this post helps someone obtain saline at a resonable price.

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