Anyone tried measuring Potassium with a Hanna Checker?

OR20

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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.
 

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taricha

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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

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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 :)
 
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