Anyone tried measuring Potassium with a Hanna Checker?

[OR20]

Has anyone tried to use Hach (product nr 2459100) reagents for testing Potassium in a Hanna Checker with a 610nm led eg. the one for Alkalinity to test the Potassium level in a reef tank? If so did it work or not? If it worked could you please share the absorptionformula and the Hanna checker used. I have attached Hach testdescription.

 

[taricha]

Interesting! Nope. I don't know anyone (@Rick Mathew ) who's tried it.
It looks like it will require a 1/100 dilution (0.25ml in 25mL)

• 10–700 mg/L: 0.25 mL

it also looks like since it uses turbidity, most any wavelength will work to measure the cloudiness.

 

[Rick Mathew]

Interesting! Nope. I don't know anyone (@Rick Mathew ) who's tried it.
It looks like it will require a 1/100 dilution (0.25ml in 25mL)

• 10–700 mg/L: 0.25 mL

it also looks like since it uses turbidity, most any wavelength will work to measure the cloudiness.

Haven't tackled this one as of yet....still working to tighten up Iodine test