Intended Use For the colorimetric determination of potassium in human serum and plasma on TC Matrix analyzers. Principle The amount of potassium is determined by using sodium tetraphenylboron in a specifically prepared mixture to produce a colloidal suspension, the turbidity of which is proportional to the potassium concentration in the sample. CONTACT US: TECO DIAGNOSTICS 1268 N. Lakeview Avenue Anaheim, CA 92807 Tel: 714‐463‐1111 Fax: 714‐463‐1169 Test: Potassium Reagent (Colorimetric Method) for TC Matrix(P605 – 510TM) Number of Tests: 510 tests Format: Liquid Method: Colorimetric, Endpoint Testing Procedure: Automated Storage Temperature: 15 – 30°C Wavelength: 510 nm Expected Values: 3.4 – 5.3 mEq/L It is recommended that each laboratory establish its own range of expected values. Linearity: 2 – 7 mEq/L Reagent Deterioration : Do not use if: (1) The reagent is very cloudy; (2)T he reagent fails to achieve assigned value on fresh control serum. Limitations of Procedure: Turbid or icteric samples produce falsely elevated results