Development and validation of automated methods for COVID-19 PCR Master Mix preparation.

Area of Science:

• Molecular Biology
• Clinical Diagnostics
• Laboratory Automation

Background:

• Polymerase Chain Reaction (PCR) assays were crucial for SARS-CoV-2 pandemic testing, necessitating high-throughput and automation.
• Manual PCR Master Mix preparation is prone to operator variability, inconsistency, reagent wastage, and potential data integrity issues.
• Existing automation efforts often overlooked the critical Master Mix preparation step.

Purpose of the Study:

• To develop and validate an automated, traceable, and compliant solution for PCR Master Mix preparation.
• To demonstrate that automated preparation can match or exceed the accuracy and precision of manual methods.
• To reduce operator-induced variability and wastage in molecular diagnostic workflows.

Main Methods:

• Development of a liquid-handler-based system for automated PCR Master Mix preparation.
• Implementation of a fully automated protocol for reagent pipetting.
• Validation of the automated method within a diagnostic laboratory setting.

Main Results:

• The automated PCR Master Mix preparation protocol successfully replaced manual pipetting without compromising accuracy or precision.
• Significant reduction in operator-induced reagent wastage was achieved.
• Improved consistency in the quality of results was observed compared to manual methods.

Conclusions:

• Automated liquid handling provides a viable and superior alternative to manual PCR Master Mix preparation in diagnostic settings.
• Automation enhances workflow efficiency, reduces errors, and ensures greater consistency and reliability of molecular test results.
• This approach addresses a critical bottleneck in high-throughput molecular diagnostics.