Ph Buffer Capsules

[Phoenix]

I'm after some help sourcing some new Ph Buffer capsules.
I've no idea where the last labbie ordered them from as it was a number of years ago.
I'll try tablets if anyone can let me know what ones are best. The tablets I have don't work.
The Chem teacher would like a range of buffers from 2 up if thats possible.
Does anyone know whats best and where to order from?

Thanks
Kelli

[RosalieM]

I just noticed Southern Biological sell buffer solutions of pH 2, 4, 7, 9 and 10. I don't know if this is what you are after. Serrata sells 2, 4, 6.8, 7, 9.2, 10 and 13. Serrata also has satchets which may be what you are after.

[Labbie]

Satches now thats a good idea, thank you