Clarity Control Fraction Collector - General Purpose FC GP control software

Significance of the Topic

The integration of fraction collectors with chromatography software is essential for preparative separations in laboratories and industrial settings. Automated control of fraction collection enhances reproducibility, reduces manual intervention, and ensures accurate sample handling, all crucial for high-throughput purification and scale-up processes.

Objectives and Study Overview

This application note describes the implementation of direct control over general-purpose fraction collectors (FC GP) using Clarity Chromatography Software. It outlines how operators can define collection parameters, monitor fraction events in real time, and scale the system for complex preparative tasks.

Methodology and Used Instrumentation

The study employs the FC GP driver within Clarity Software to issue Collect/Waste and Next Fraction commands via digital (TTL) outputs. Key steps include:

• Defining fraction criteria based on signal thresholds and slope in the Method Setup – Fraction Table.
• Graphical annotation of collected fractions in the chromatogram and generation of detailed result tables.
• Online monitoring and manual triggering through the Device Monitor interface.

Used Instrumentation

• Clarity Chromatography Station (DataApex).
• DataApex A/D converters (Colibrick, U-PAD2, INT9 series) for digital output signals.
• Interface terminal boards (SV8 or SV9).
• General-purpose fraction collector compatible with Collect/Waste and Next Fraction signals.

Main Results and Discussion

The integration provides:

• Real-time visualization of fraction collection directly on chromatograms.
• Automated fraction triggering based on customizable signal parameters.
• Scalable architecture permitting additional hardware control (e.g., valves) for complex workflows.
• Exportable fraction data for reporting or further analysis.

This approach minimizes manual switching, improves timing accuracy, and supports high-precision preparative runs.

Benefits and Practical Applications

Laboratories benefit from reduced operator workload, consistent fraction quality, and seamless data documentation. The system is well suited for pharmaceutical purification, natural product isolation, and any preparative chromatography requiring precise fraction management.

Future Trends and Opportunities

Upcoming developments may include cloud-based monitoring dashboards, AI-driven fraction prediction, integration with advanced fraction analyzers, and further automation through robotics. Open APIs and modular hardware designs will enhance adaptability across diverse preparative platforms.

Conclusion

Direct control of fraction collectors via Clarity Chromatography Software streamlines preparative workflows, ensures reproducible fraction timing, and provides rich data visualization and export capabilities. This flexible solution supports scalable automation and meets the evolving demands of modern analytical and preparative laboratories.

References

• DataApex. Clarity Chromatography Software User Manual, FC GP Control Module. Revision B017/EN04-2018.