quality control - eqas - clinical chemistry - Clinical Chemistry (scheme with reference method values), 1 sample, 1 evaluation report, analytes: Cholesterol, Creatinine, Sodium, Potassium, Magnesium, Copper, Zinc, Lithium. (for marked analytes, values obtained by reference methods are available; depending on the batch of samples, it is possible that the list of these analytes may vary), code TQBC0020-R, survey in 2024.10