Use of N-(l-naphthyl)-ethylendiamine-dihydrochloride (NEDD) as secondary calibrator for conjugated bilirubin on the DuPont aca
1985

Using NEDD to Calibrate Conjugated Bilirubin Measurements

publication Evidence: moderate

Author Information

Author(s): Maria Luisa Gozzo, Giuliano Barbaresi, Francesco Dalla Torre, Gianpaolo Littarru, Cecilia Zuppi

Primary Institution: Istituto di Fisiologia Umana, Laboratorio di Chimica Clinica, Policlinico Universitario A. Gemelli

Hypothesis

Can N-(1-naphthyl)-ethylendiamine-dihydrochloride (NEDD) serve as a reliable secondary calibrator for conjugated bilirubin measurements?

Conclusion

The study demonstrates that NEDD can effectively calibrate the aca's CBil channel, providing a simpler alternative to existing methods.

Supporting Evidence

  • NEDD solutions showed long-term stability when stored properly.
  • The proposed calibration method has been used successfully for three years.
  • Conversion factors for NEDD were found to be consistent over time.

Takeaway

This study shows that a special chemical called NEDD can help doctors measure a substance in the blood more accurately, making it easier to check for health problems.

Methodology

The study involved calibrating the aca CBil channel using NEDD and comparing results with a manual reference method.

Potential Biases

Potential bias due to the use of non-NBS certified materials.

Limitations

Lot-to-lot variations of TBil calibrator and different purities of NEDD may affect conversion factors.

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