Determination of Na+ and K+ in urine with ion-selective electrodes in an automated analyzer.
We applied an automatic potentiometric electrolyte analyzer (STAT/ION) to the routine determination of Na+ and K+ in urine samples, and found a high correlation with results obtained by flame photometry. The electrodes were selective and no obvious interferences were encountered in the limited number of samples available in this study.
D001322:Autoanalysis; D004566:Electrodes; D005069:Evaluation Studies as Topic; D006801:Humans; D011188:Potassium / Q000652:urine*; D011199:Potentiometry / Q000379:methods; D012964:Sodium / Q000652:urine*
D012964:Sodium; D011188:Potassium