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Evaluation of a new multichannel analyzer, "Astra-8"
Clinical Chemistry
|December 1, 1978
Summary
The new Beckman Astra-8 chemistry analyzer shows excellent precision and accuracy for multiple tests including sodium, potassium, and glucose. It performed comparably to existing analyzers, offering ease of operation.
Area of Science:
- Clinical chemistry
- Analytical instrumentation
Background:
- Clinical laboratories require reliable and efficient chemistry analyzers.
- Advancements in microprocessor technology enable more sophisticated analytical instruments.
Purpose of the Study:
- To evaluate the performance of the new Beckman Astra-8 multiple-channel chemistry analyzer.
- To compare the Astra-8's analytical capabilities against established methods.
Main Methods:
- The Beckman Astra-8 analyzer was tested for multiple chemistries: sodium (Na), potassium (K), carbon dioxide (CO2), chloride, urea nitrogen, glucose, and creatinine.
- Performance was assessed based on precision, linearity, accuracy, analytical recovery, and interference.
- Results were compared to those obtained from a continuous-flow (SMA 6/60) and a discrete (Du Pont aca) analyzer.
Main Results:
- The Astra-8 demonstrated excellent precision and linearity across tested analytes.
- Accuracy, analytical recovery, and lack of interference were satisfactory.
- Comparison to established methods showed good agreement.
Conclusions:
- The Beckman Astra-8 is a reliable and accurate multiple-channel chemistry analyzer.
- Its performance characteristics make it a suitable option for clinical laboratory testing.