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Summary

This summary is machine-generated.

Monitoring internal standard (IS) response in analytical runs is crucial but lacks standardized methods. This study surveys European Bioanalysis Forum practices to recommend best approaches for managing IS response variability.

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Area of Science:

Analytical Chemistry
Bioanalysis
Pharmaceutical Analysis

Background:

Internal standard (IS) response monitoring is essential for analytical run integrity.
Current practices for assessing IS response variability lack standardization across laboratories.
The European Bioanalysis Forum (EBF) identified a need for best practice guidelines.

Purpose of the Study:

To survey current practices for monitoring internal standard response variability within EBF member companies.
To identify common challenges and approaches in managing IS response deviations.
To recommend a standardized, best-practice approach for assessing IS response in bioanalytical runs.

Main Methods:

A survey was distributed to European Bioanalysis Forum member companies to gather data on their internal standard monitoring practices.
Data analysis focused on identifying trends, common methodologies, and areas of divergence in IS response assessment.
A topic team was formed to review survey results and formulate recommendations.

Main Results:

Significant variation exists in the methodologies employed for monitoring internal standard response across different laboratories.
Commonly identified anomalies in IS response include drifts, shifts, and outliers.
A consensus emerged on the need for a more harmonized approach to IS response evaluation.

Conclusions:

Standardized monitoring and assessment of internal standard response are critical for reliable bioanalytical data.
The EBF recommends the adoption of a consistent, best-practice approach to manage IS response variability.
Implementing these recommendations will enhance data quality and inter-laboratory reproducibility in bioanalysis.