Nitro and chlorinated aromatics
Applications | 2011 | Agilent TechnologiesInstrumentation
Chlorinated and nitro-aromatic compounds are significant environmental pollutants requiring rapid and reliable analysis for monitoring and regulatory compliance.
This application note demonstrates the separation of 14 target nitro and chlorinated aromatic compounds in under 20 minutes using an Agilent VF-17ms GC column.
The method achieves baseline separation of dichlorobenzenes, trichlorobenzenes, nitrobenzene, isophorone, dinitrotoluenes, azobenzene, and various polychlorinated species in a single run. The phenyl-methyl silicone phase enhances selectivity for aromatic compounds under the optimized temperature program.
Integration with mass spectrometry for improved sensitivity, deployment of portable GC systems for field analysis, and expansion of compound libraries to include emerging halogenated and nitro-aromatic contaminants.
The presented GC-FID method on VF-17ms column provides a fast, reliable approach for analyzing a broad range of nitro and chlorinated aromatic pollutants.
GC, GC columns, Consumables
IndustriesEnvironmental
ManufacturerAgilent Technologies
Summary
Importance of the topic
Chlorinated and nitro-aromatic compounds are significant environmental pollutants requiring rapid and reliable analysis for monitoring and regulatory compliance.
Objectives and Article Overview
This application note demonstrates the separation of 14 target nitro and chlorinated aromatic compounds in under 20 minutes using an Agilent VF-17ms GC column.
Materials and Methods
- Sample: 200 μg/mL mixture of the 14 analytes.
- Injection: 1 μL, split ratio 1:100.
- Temperature program: 50 °C initial, ramp 10 °C/min to 300 °C.
- Carrier gas: Helium at 70 kPa.
- Detector: Flame ionization (FID).
Used Instrumentation
- Agilent VF-17ms column (30 m × 0.25 mm, 0.25 μm film, Part No. CP8982).
- GC system with split-splitless inlet and FID detector.
Main Results and Discussion
The method achieves baseline separation of dichlorobenzenes, trichlorobenzenes, nitrobenzene, isophorone, dinitrotoluenes, azobenzene, and various polychlorinated species in a single run. The phenyl-methyl silicone phase enhances selectivity for aromatic compounds under the optimized temperature program.
Benefits and Practical Applications
- Rapid screening workflow for environmental and industrial samples.
- High resolution and reproducibility for routine QA/QC.
- Applicable to monitoring persistent organic pollutants.
Future Trends and Potential Applications
Integration with mass spectrometry for improved sensitivity, deployment of portable GC systems for field analysis, and expansion of compound libraries to include emerging halogenated and nitro-aromatic contaminants.
Conclusion
The presented GC-FID method on VF-17ms column provides a fast, reliable approach for analyzing a broad range of nitro and chlorinated aromatic pollutants.
References
- Peene J. Agilent application note A02276, Agilent Technologies, Inc., 2011.
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