Re: Aquatic Plants Digest V2 #367
> From: psears at NRCan_gc.ca (Paul Sears)
> Date: Fri, 6 Dec 1996 08:47:29 -0500 (EST)
> Subject: Re: "K2O", cation exchange
> The potassium will be there as a salt. Unfortunately, there are no
> easy ways that I know to measure K in water. If anyone finds one,
> I would like to hear about it, as it would be very useful!
Hach has a turbidimetric method for potassium available for their
colorimeters and spectrophotometers.
Yes, either AA or ICP would also work just fine. You should plan on
paying an absolute minimum of $50 per standard ICP panel, or a bare
minimum of $10-20 for one element, one sample.