Is anyone using a pH meter for testing platelets for bacterial contamination? If so, what meter / electrode are you using and do you recommend it? What cutoff level are you using or planning to use?

Sorry, we'll be going with the Pall method.

Measuring pH is a useful tool to determine platelet function; but while it does decrease when bacterial contamination is present, I don't think pH should be the sole indicator of bacterial growth; too many other things can lower pH as well.

most of the clients I have will be testing the plateletpheresis products by either BACT-Alert or PALL. For pooled randoms, they will test ph and glucose levels of each bag before pooling. They are trying to establish validation by spiking bags with Staph.epid,streptococcus, a gram negative rod and a know anaerobe vs no growth known culture.

We are in the process of purchasing "minilab" pH meter. It is pocket size and uses a very small volume of product. Hope to have on board and evaluate next week. :roll: