How to adapt difficult calculations in Clarity

Significance of Topic

Determining artemisinin assay and impurity content is crucial for quality control in pharmaceutical production. Integrating calculation of pharmacopoeial equations directly within chromatography software enhances data integrity, streamlines workflows and meets auditing requirements.

Objectives and Study Overview

This study demonstrates how to configure Clarity Chromatography Software to perform two pharmacopoeial calculations:

• Artemisinin assay percentage based on a primary equation
• Impurity content percent of artemisinin, 9-epi-artemisinin and other unknowns incorporating response factors

Customized calibration protocols are established to automate these computations without external tools.

Methodology and Instrumentation

The methodology involves:

• Setting up an Assay calibration where sample mass is entered into the Amount field
• Defining an Impurities calibration with correction factors for each impurity and linking it to the artemisinin basis via the Calculated By parameter
• Entering the sample weight and response factors in the calculation pane to apply the pharmacopoeial formulas

Instrumentation:

• Clarity Chromatography Software by DataApex Ltd

Main Results and Discussion

Calculated assay and impurity percentages in Clarity matched results from Microsoft Excel validation. The built-in calculation pane allowed for direct application of external equations and real-time result display, eliminating manual spreadsheet transfers.

Benefits and Practical Applications

Key advantages include:

• Integration of complex calculations within the chromatography platform
• Reduced risk of transcription errors and enhanced audit compliance
• Streamlined laboratory workflow without reliance on external spreadsheets

Future Trends and Possibilities

Emerging directions for chromatography software customization:

• Expanded library of standard and pharmacopoeial equations
• Integration with laboratory information management systems and cloud services
• AI-assisted method development and automated result interpretation

Conclusion

Clarity Chromatography Software provides robust tools for embedding complex external calculations directly into analytical workflows. This approach enhances efficiency, data traceability, and regulatory compliance in pharmaceutical assays.

Reference

Jaroslav Káňa, Application Note D096/EN05-20240126, DataApex Ltd., Prague, Czech Republic