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An evaluation of the Jeol Clinalyzer
Journal of Clinical Chemistry and Clinical Biochemistry. Zeitschrift Fur Klinische Chemie Und Klinische Biochemie
|April 1, 1978
Summary
The Jeol Clinalyzer demonstrated excellent mechanical and electrical reliability over 15 weeks. While generally precise, accuracy varied for certain analytes like alkaline phosphatase and aspartate transaminase.
Area of Science:
- Clinical chemistry
- Analytical instrumentation
Background:
- The Jeol Clinalyzer is a new analytical instrument requiring thorough evaluation.
- Assessing instrument performance is crucial for reliable clinical diagnostics.
Purpose of the Study:
- To evaluate the performance of the Jeol Clinalyzer over a 15-week period.
- To assess the instrument's reliability, accuracy, and precision for various clinical chemistry assays.
Main Methods:
- The Jeol Clinalyzer was operated for 15 weeks.
- Mechanical components, safety, and reliability were tested.
- Accuracy and precision of pumps and spectrophotometer were assessed.
- Between-batch precision and accuracy of specific assays (urea, protein, bilirubin, alkaline phosphatase, aspartate transaminase) were determined.
Main Results:
- Excellent mechanical and electrical reliability was observed.
- Pumps and spectrophotometer exhibited good accuracy and precision.
- Good between-batch precision was found for urea, protein, and bilirubin.
- Acceptable between-batch precision was noted for alkaline phosphatase and aspartate transaminase.
- Poor relative accuracy was found for alkaline phosphatase and aspartate transaminase.
- Some proportional inaccuracy was observed for urea and bilirubin.
Conclusions:
- The Jeol Clinalyzer shows excellent reliability and good precision for several key clinical chemistry assays.
- Accuracy requires improvement for alkaline phosphatase, aspartate transaminase, urea, and bilirubin to ensure optimal diagnostic utility.