Stillraining
Well-Known Member
The single use ketchup packs are very handy and very expensive. Get these instead and mix your own buffers from the contents of the pillows and 50 mL DI (or RO if you can't get DI) water.
http://www.hach.com/buffer-powder-p...ellow-pk-50/product?id=7640205050&callback=qs
http://www.hach.com/buffer-powder-p...d-red-pk-50/product?id=7640204347&callback=qs
and a couple of these to put the buffers in.
http://www.hach.com/sample-container-120ml-high-pf/product?id=7640237101&callback=qs
Awesome you just saved me some $ Thanks Mate!