Analytical Principals and Methods
-A Clinical Chemists Vie
 
Performance Characteristics ofBiomedical Analyses
R
eliability Criteria
a.Sensitivit ±can it measure low enough levels ?b.Specificit ±can it distinguish the analyte from other substances ?c.Bias (Accuracy) ±does it give the correct value ?d.Precision ±does it always give the same answer ?
 
Precision and Bias
High accuracyand precisionPoor precision,high accuracyPoor accuracy,high precision
  
B
ias
 
Performance Characteristics ofBiochemical Analyses
Practicability Criteria
a.Spee ±turn around timeb.Cosc.Analytical Skild.Dependabilit ±equipment reliability e.Safet
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