ChromaFID Volatile Organic Compound (VOC) Analysis System

The ChromaFID system integrates gas chromatography with a flame ionization detector (GC/FID) to perform the automated, continuous analysis of VOCs. It facilitates real-time monitoring of VOC concentrations from C₁ to C₁₂ (or C₁₀ to C₄₀ in the FID-300 configuration), making it ideal for air quality assessment and production process control in modern industrial environments.

Operating Principle

The system operates on an automated, continuous cycle involving the following steps:

• Automated Sampling:

  A sample loop continuously collects the gas sample, ensuring an uninterrupted analytical process.

• Injection and Separation:

  The gas sample is injected into a metallic capillary column whose temperature and pressure are precisely regulated by dedicated operating software. This controlled environment optimizes the separation of individual compounds based on their distinct physico-chemical properties.

• Detection by FID:

  Following separation, the compounds are transferred to the flame ionization detector. Here, the combustion process generates ions that enable the precise quantification of VOC concentrations, achieving sensitivities in the ppb range.

Technical Specifications and Advanced Options

The ChromaFID system incorporates a suite of advanced technical features and expansion options to optimize analytical performance:

• Integrated Control System: Equipped with an onboard computer running the VISTACHROM® software, it allows precise control over operational parameters such as column temperature, pressure, and sampling duration.
• Remote Monitoring: Enables continuous, real-time supervision and remote adjustment of the analytical process.
• Quality Assurance: Each unit undergoes a minimum one-week validation by the Quality Control (QC) department before shipment, ensuring high standards in repeatability, linearity, stability, and sensitivity (down to ppb levels).
• Robust and Compact Design: The instrument features a durable, space-saving design that requires minimal maintenance, making it well-suited for demanding industrial environments.
• Automated Calibration: Supports internal calibration routines to maintain high analytical accuracy.
• Data Export Capabilities: Facilitates seamless integration into centralized control systems via data output protocols such as MODBUS, MGS1, 4–20 mA, and 0–10 V.
• Supplementary Options: Additional components like a Hydrogen Generator and Zero Air Generator are available to create an optimal analysis environment by reducing contaminant interference.
• Multiplexer Integration: The built-in multiplexer system allows simultaneous analysis of multiple sample streams, thereby increasing throughput and efficiency.
• Dilution and Heated Transfer Lines: The system supports dilution solutions and heated transfer lines, which are particularly beneficial for analyzing compounds prone to condensation (e.g., semi-volatile organic compounds (SVOC) and linear alkanes from C₆ to C₄₀).
• Expanded Compound Analysis: Beyond standard VOC analysis, the system is capable of detecting specific compounds such as epichlorohydrin, broadening its applicability in specialized industrial sectors.

VISTACHROM® Software

Developed by Chromatotec®, the VISTACHROM® software serves as the central platform for system control and data management. Its key features include:

• Remote Supervision: Provides real-time monitoring and adjustment of operating parameters via network connectivity.
• Data Traceability and Archiving: Automatically archives analysis results and quality control data, ensuring full traceability and ease of retrieval.
• Threshold Alarm Configuration: Users can set alarm thresholds to promptly address any deviations or anomalies during the analytical process.
• Flexible Data Export: Supports standard data export protocols, facilitating integration with various automation and control systems.

Applications Summary

With its high-precision analysis and continuous monitoring capabilities, the ChromaFID system is widely applied in:

• Air Quality Monitoring: Used in industrial and urban settings to control pollution levels and comply with emission standards.
• Production Process Control: Employed in the chemical, pharmaceutical, and food industries to ensure product quality and safety.

• Scientific Research: Utilized in advanced analytical laboratories for the study of VOC composition and behavior.