Evaluation of the Technicon Chem-1

Area of Science:

• Clinical chemistry
• Analytical chemistry
• Biomedical instrumentation

Background:

• The Technicon Chem-1 is an automated clinical chemistry analyzer.
• Evaluating assay performance and sample suitability is crucial for reliable diagnostic testing.

Purpose of the Study:

• To assess the performance of colorimetric and ion-selective electrode assays on the Technicon Chem-1.
• To determine the suitability of plasma and urine matrices for analysis using this system.

Main Methods:

• Evaluation of 15 colorimetric and 3 ion-selective electrode assays.
• Assessment of within- and between-batch precision, accuracy, correlation, and linearity.
• Testing of plasma and urine sample suitability for various analytes.

Main Results:

• Most assays demonstrated acceptable precision, accuracy, correlation, and linearity.
• Bicarbonate and creatinine assays were noted to be susceptible to interferences.
• Plasma is suitable for most analytes, excluding total bilirubin and lactate dehydrogenase.
• Urine analysis is feasible, with specific dilution required for phosphate and pH sensitivity noted for calcium.

Conclusions:

• The Technicon Chem-1 analyzer offers reliable performance for many serum assays.
• Careful consideration of potential interferences and sample-specific preparation is necessary for accurate urine and certain plasma analyses.