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METHOD PROCEDURES
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POTASSIUM
11.9. POTASSIUM
SPECIFICATIONS
Range 0.0 to 20.0 mg/L (as K)
Resolution 0.1 mg/L
Accuracy ±3.0 mg/L ±7% of reading at 25 °C
Light Source LED with narrow band interference filter @ 466 nm
Method Adaptation of the Turbidimetric Tetraphenylborate Method
REQUIRED REAGENTS
Code Description Quantity
HI93750A-0 Potassium Reagent A 6 drops
HI93750B-0 Potassium Reagent B 1 packet
REAGENT SETS
HI93750-01 Reagents for 100 tests
HI93750-03 Reagents for 300 tests
For other accessories see ACCESSORIES section.
MEASUREMENT PROCEDURE
• Select the Potassium method using the procedure described in the METHOD SELECTION section.
• Fill the cuvette with 10 mL of sample (up to the mark).
• Add 6 drops of HI93750A-0 Potassium Reagent A. Replace
the plastic stopper and the cap. Swirl the solution.
• Insert the cuvette into the holder and close the lid.
10 mL
×6
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