ZB-CLPesticides-1 & -2 - Guaranteed, Drop-In Performance for Chlorinated Pesticides

Importance of the Topic

Chlorinated pesticides are widely monitored due to their persistence, bioaccumulation and potential health risks. Reliable gas chromatographic analysis with electron capture detection (GC/ECD) is central to environmental compliance and food safety. Using versatile columns that support multiple regulatory methods streamlines lab workflows and ensures reproducible results.

Objectives and Study Overview

This work assesses Zebron ZB-CLPesticides-1 and ‑2 columns as direct replacements for existing Rtx®-CLPesticides phases. It aims to demonstrate drop-in performance across seven EPA methods by GC/ECD, verify EPA specification compliance, and highlight cost and operational advantages.

Methodology and Instrumentation

Tests covered EPA methods 8081, 8082, 8151, 504, 505, 508 and 552. Both 30 m×0.32 mm columns (film 0.32 µm and 0.25 µm) were evaluated under standardized conditions: helium carrier in constant flow, splitless injections, and ECD at high temperatures. Calibration curves and precision metrics were established using Phenova® Certified Reference Materials. Quality-by-design included individual column QC checks for efficiency, bleed and activity.

Main Results and Discussion

Chromatograms showed equivalent elution order and peak shapes compared to Restek phases, with run times replicating approved methods. Calibration linearity (R2>0.997) and precision (%RSD<10% average) met or exceeded EPA criteria. Multi-class pesticide resolution was achieved without column changes, reducing method development time. PCB aroclor separations and haloacetic acid profiling confirmed broad applicability.

Benefits and Practical Applications of the Method

• Supports seven EPA pesticide methods on a single column pair
• Eliminates frequent column changes and reduces instrument downtime
• Everyday low pricing and 45-day refund guarantee mitigate financial risk
• Backed by personalized technical support and free resource access
• Enhanced throughput using Phenova CRMs for extended calibration windows

Future Trends and Potential Applications

Emerging laboratory demands will favor multi-residue GC phases compatible with both ECD and MS detection. Future developments may include ultra-inert surfaces, faster thermal programs and integrated digital tools for method selection. Sustainable consumables and advanced CRMs will further drive efficiency and data confidence.

Conclusion

Zebron ZB-CLPesticides-1 and ‑2 provide robust, drop-in solutions for chlorinated pesticide analysis by GC/ECD. They deliver consistent separation, regulatory compliance and significant cost savings, supported by rigorous QC and comprehensive customer services.

References

No specific literature references were provided in the source material.