Potassium is determined entymatically via potassium-dependant pyruvate kinase activity using phosphoenolpyruvate as substrate.
SPECIFICATIONS
ACCURACY - The bias of control is ±10%.
PRECISION - The CV of the test should be 55%.
LINEARITY - The assay is linear up to 10 mmol/L.
INTERFERENCE - The following analytes were tested up to the levels indicated and found not to interfère: Intralipid: 1000 mg/dL; Hemoglobin: 100 mg/dL Bilirubin: 30 mg/dL; Ascorbic acid: 40 mg/dL