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Semiautomatic and robotic methods for determining serum haptoglobin levels.

Joseph E. Smith1, Patricia S. Chavey, Gordon A. Andrews

  • 1Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.

Veterinary Clinical Pathology
|June 21, 2002
PubMed
Summary

This study adapted the Makimura and Suzuki serum haptoglobin assay for high-throughput analysis. New semiautomated and robotic methods offer efficient and reliable haptoglobin determination in clinical settings.

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Area of Science:

  • Clinical Chemistry
  • Biochemical Assays
  • Laboratory Automation

Background:

  • The Makimura and Suzuki assay is a standard method for serum haptoglobin determination.
  • High-throughput analysis is crucial for managing large numbers of clinical samples.

Purpose of the Study:

  • To adapt the Makimura and Suzuki serum haptoglobin assay for high-throughput analysis.
  • To evaluate the performance of semiautomated and robotic adaptations of the assay.

Main Methods:

  • Adapted the Makimura and Suzuki serum haptoglobin assay into a one-tube format.
  • Implemented semiautomated and robotic platforms for assay execution.
  • Correlated results with the original two-tube method.

Main Results:

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  • The adapted assay allows for the determination of haptoglobin in several hundred serum samples daily.
  • Both semiautomated and robotic methods showed strong correlation with the original assay.
  • Within-assay variability was 4.4% (semiautomated) and 4.8% (robotic).
  • Day-to-day variability averaged 6.0% (semiautomated) and 5.5% (robotic).
  • Both adapted assays yielded higher y-intercepts, necessitating updated reference values.

Conclusions:

  • The one-tube adaptation of the Makimura and Suzuki serum haptoglobin assay is suitable for high-throughput analysis.
  • Semiautomated and robotic methods provide reliable and efficient haptoglobin determination.
  • Updated reference ranges are required for the adapted assay methods.