ICP-Analysis - See any issues?
In natural seawater, Potassium is at 400 ppm. Most popular salt mix has the similar amount of potassium in it. Potassium does get consumed by coral and algae, but regular water change can replenish it.
Low potassium level can discourage growth theoretically but not a lot is known about by how much.
ICP-OES does have difficulty in reporting the right level of potassium in saltwater samples due to the interference of other major elements presented. It is a known issue and calibration is needed.
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Last edited by dz6t; 10/08/2017 at 04:31 AM.
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