RM VOC MIX-2- ASTASOL® - CH CE281I Calibration standard solution for chromatography in CERTAN® capillary bottle

Importance of the Topic

Gas chromatographic analysis of volatile organic compounds (VOCs) relies on precisely calibrated standard solutions to ensure accurate measurement and traceability in environmental monitoring, industrial quality control, and regulatory compliance.

Objectives and Product Overview

This identification sheet presents ASTASOL® CH CE281I, a certified calibration standard for the quantification of common halogenated VOCs.
Key characteristics:

• Product code: CE281I
• Reference material category: VOC MIX-2
• Matrix: Isooctane
• Assigned concentration: 1000 ± 10 µg/mL per compound at 20 °C

Methodology and Instrumentation

The standard solution is prepared gravimetrically by weighing pure analytes with electronic balances and diluting in class A volumetric flasks, compensating for purity deviations. Combined weighing and dilution uncertainty does not exceed ±0.5%.
Traceability is assured through ISO Guide 31 principles and validation against independent internal standards.

Used Instrumentation

• High-precision electronic analytical balances
• Class A calibrated volumetric flasks
• Amber glass CERTAN® bottles for storage

Main Results and Discussion

The resulting mixture contains eight halogenated VOCs, each at 1000 µg/mL with an expanded uncertainty (k=2) of ±10 µg/mL. The batch (No. 104) was produced on 24.01.2023 with a shelf life until 24.01.2025. After opening, stability is guaranteed for six months under refrigerated, dark conditions (5–10 °C).

Benefits and Practical Applications

This certified standard enables laboratories to:

• Achieve reliable calibration for GC-based VOC analysis
• Maintain consistent quality control across analytical runs
• Ensure regulatory compliance with traceable reference materials

Future Trends and Applications

Advancements may include miniaturized standard delivery systems, automated dilution and calibration modules, expanded multi-analyte mixtures, and integration with laboratory information management systems. Development of eco-friendly solvents and microfluidic calibration techniques may further streamline VOC quantification.

Conclusion

ASTASOL® CH CE281I provides a well-characterized, ISO-traceable calibration solution, supporting high-precision VOC determination by chromatography. Its rigorous preparation, verified uncertainty, and controlled storage conditions ensure dependable performance in diverse analytical contexts.