Assessment of a Selected Method for Creatinine with Special Emphasis on Bilirubin Interference

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A Survey Report on the Determination of Total Bilirubin in Neonatal Samples.

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PSA-comparability:Standardization or harmonization?

Objective: Investigation of the application of WHO calibrators for PSA (WHO 96/670 and WHO 96/668) in relationship with new developments regarding PSA measurements. Methods: The PSA assays used were those for Access, Elecsys and ACS: 180. We used 200 clinically described samples (BPH and PCa). Results: Comparing the manufacturer's calibration procedure with the WHO calibrators, revealed for total PSA slopes of 1.22, 0.92 and 1.04 for Access, Elecsys and ACS: 180 respectively. For free PSA we found 1.28, 0.83 and 1.62. Measurement of these calibrators in combination with the measurement of the clinical samples indicated that the methods for total PSA may be assumed equimolar. Conclusion: We found a good comparibility for free and total PSA. However, good interchangability of results is still not possible, due to the lack of reference methods.</p

A Spectrometric Version of the Total Bilirubin Determination with the Du Pont ACA with Respect to Neonatal Sera

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Chemical Analysis of Gallstones

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Validation of the Ultrafiltration Technique for Creatinine Analysis by HPLC: A Comparison with Direct Serum Injection

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