
THE BASICS
Today, every biological fluid is used as a specimen in clinical diagnostics, but the most common bodily fluids are serum, plasma, saliva and urine. Each fluid, defined also as matrix, demands elaborate collection and preparation procedures which determine the accuracy of the analytical method. Improper sample preparation can lead to results very distant from the actual concentration of the analyte.
Today, every biological fluid is used as a specimen in clinical diagnostics, but the most common bodily fluids are serum, plasma, saliva and urine. Each fluid, defined also as matrix, demands elaborate collection and preparation procedures which determine the accuracy of the analytical method. Improper sample preparation can lead to results very distant from the actual concentration of the analyte.
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