Trace-Level VOCs in Water

The determination of volatile organic compounds (VOCs) in water matrices is crucial due to their potential impact on public health. Regulatory agencies, including the European Environmental Agency (EEA), the United States Environmental Protection Agency (US EPA), and the World Health Organization (WHO), have established stringent limits for VOCs in drinking water. Traditional headspace analysis, a widely employed technique for VOC measurement in water, can present challenges in achieving adequate sensitivity and effective water vapor management.

This new application note, "Trace-level Volatile Organic Pollutants in Water: A Deep Dive with Headspace-Trap GC/MS," details a methodology employing the PAL3-Centri® automated sampling and concentration system to address these limitations. The system facilitates enhanced sensitivity, enabling quantitation of target analytes at low parts-per-trillion (ppt) levels, with exceptional linearity and precision. The application note presents the analysis of a 72-component standard mix and a real tap water sample, demonstrating the method's capability to quantify target analytes at trace concentrations while effectively managing interferences.

Download the App Note for a comprehensive examination of trace-level VOC analysis with enhanced accuracy and reliability.

Learn more about the trap technology by visiting our collaboration partner: Markes International.

Hagen Gegner

Scientific Communications Specialist

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A minimalistic and soft colored water sample waiting for analysis via Headspace - Trap GC/MS

Meeting Water Quality Challenges with Advanced VOC Analysis

Traditional headspace analysis, while valuable, can be constrained by sensitivity limitations, potential peak shape distortion, and challenges in controlling water vapor, which can interfere with chromatographic performance. The PAL3-Centri® system offers a solution through automated sampling and concentration, enhancing sensitivity and providing improved water management. This methodology enables the quantitation of target analytes at trace concentrations, specifically, low parts-per-trillion (ppt) levels. The application note provides a detailed examination of the analysis of a 72-component standard mix and a real tap water sample, demonstrating excellent linearity, recovery, repeatability, and detection limits that surpass regulatory requirements for water quality.

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A small clamped GC/MS vial filled with water waiting for analysis on the PAL3-Centri system

Significance and Implications

The accurate and reliable analysis of VOCs in water is critical for environmental monitoring, assessing water treatment efficacy, and safeguarding public health. The PAL3-Centri® system contributes to advancing analytical capabilities by enabling the sensitive and precise quantitation of VOCs at trace levels. Automated solutions, such as the PAL3-Centri®, play a crucial role in enhancing efficiency, productivity, and data quality within analytical workflows. These advancements have broad implications for various fields, including environmental science, food safety, and potentially clinical diagnostics.

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