Gas Chromatography-Mass Spectrometry (GC-MS)

High-Sensitivity Trace Detection Using Industry-Leading GC-MS Technology

At Leeder Analytical, Gas Chromatography-Mass Spectrometry (GC-MS) underpins a wide range of our trace organic compound analyses.

Using state-of-the-art Agilent systems, our NATA-accredited laboratory delivers reliable, high-resolution mass spectral data to support research, quality assurance, regulatory compliance, and forensic investigations.

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What Is GC-MS?

Gas Chromatography-Mass Spectrometry (GC-MS) is a hybrid analytical technique that couples compound separation with molecular identification.

  • Gas Chromatography (GC) separates volatile compounds based on their physical and chemical properties
  • Mass Spectrometry (MS) identifies compounds by analysing their mass-to-charge ratios and fragmentation patterns

The result is a powerful tool for identifying and quantifying trace-level compounds across diverse matrices with exceptional sensitivity and specificity.

What We Use GC-MS For

GC-MS is central to many of our laboratory workflows. It is particularly valuable for:

  • Trace-level compound identification
  • Screening of unknowns and impurities
  • Confirmation of target analytes in complex samples
  • Support for regulatory and method-driven analysis

Rather than focus on a specific compound class, GC-MS enables flexible, method-driven detection suitable for environmental, pharmaceutical, biological, and industrial samples.

For compound-specific capabilities, see our VOC & SVOC Analysis.

Our GC-MS Instrumentation

Our laboratory is equipped with advanced GC-MS systems from leading manufacturers, configured for both general screening and method-specific workflows.

Agilent Single Quadrupole GC-MS Thermo Single Quadrupole GC-MS Markes Thermal Desorption GC-MS Agilent Triple Quadrupole GC-MS
  • Electron Impact (EI) ionisation
  • Full scan and Selected Ion Monitoring (SIM) modes
  • Scan speed: up to 20,000 u/sec
  • Mass range: 1.6 to 1050 m/z
  • Detection sensitivity: 1 pg OFN at m/z 272 (S/N ≥ 1500:1)
  • Electron Impact (EI) and Chemical Ionisation (CI) capabilities
  • Full scan and Selected Ion Monitoring (SIM) modes
  • High-sensitivity detection for trace analysis
  • Robust performance across diverse sample matrices

Specialised for air analysis and volatile compounds:

  • Direct thermal desorption from sample tubes
  • Ultra-low detection limits for air monitoring
  • Optimised for VOC analysis in workplace and environmental air
  • Eliminates solvent extraction for cleaner analysis

For confirmatory workflows:

  • Multiple Reaction Monitoring (MRM) for selective quantification
  • Femtogram-level sensitivity
  • Broad dynamic range for low- to high-level analyte quantification

Key Capabilities

Trace Sensitivity: Detect compounds at ppt-ppb levels depending on matrix

Reproducible Quantification: Excellent linearity across wide concentration ranges

Reliable Identification: Robust spectral matching with NIST and Wiley libraries plus expert interpretation

Adaptability: Supports both screening and targeted detection workflows

Method Development and Quality Assurance

All GC-MS workflows are developed and validated under NATA-accredited conditions. Our approach includes:

  • Custom sample preparation (headspace, solvent extraction, thermal desorption)
  • Multi-point calibration curves with quality control checks
  • Internal standards and surrogate recovery tracking
  • NIST and Wiley spectral library matching
  • Batch-based system suitability and performance verification

We tailor method parameters to your sample type, matrix complexity, and regulatory requirements.

How We Use GC-MS Across Our Work

GC-MS stands as a core component of many analyses we perform. At Leeder Analytical, we use it to support a wide range of compound-specific methods and industry applications.

Air Quality Testing Biological Sample Analysis Surfactant Analysis Gas Composition Testing
Using our Markes Thermal Desorption GC-MS system for workplace air monitoring, environmental air quality assessment and ultra-sensitive VOC detection without solvent interference. GC-MS applied to biological matrices such as blood, urine, and tissue for ultra-trace detection of contaminants, metabolites, and toxic compounds. Characterisation and quantification of surfactants, formulation residues, and degradation by-products in industrial, cosmetic, and environmental samples. High-resolution GC-MS for detailed impurity profiling, gas stream characterisation, and compositional analysis of petroleum products, industrial emissions, and fuel samples.

When to Use GC-MS

GC-MS is ideal for:

  • Projects requiring volatile or semi-volatile compound detection
  • Situations where unknown identification is required
  • Supporting EPA, TGA, or ICH-compliant workflows
  • Quantifying trace-level analytes in complex or sensitive matrices

What You’ll Receive

Each analysis includes:

  • Detailed analytical report with clear results presentation
  • Method parameters and performance criteria
  • Quality control data
  • Interpretation of findings
  • Regulatory compliance assessment (where applicable)
  • Recommendations for follow-up testing if needed

Contact Our Team

Need help determining whether GC-MS is the right technique for your project?

Contact us today to discuss sample requirements, detection limits, and method suitability.

Phone: +613 9481 4167
Email: enquiries@leeder-analytical.com

CONTACT US

For a free quote or a discussion on how Leeder Analytical can assist you with analytical testing services or consulting please contact us today via the form below

To talk to our team regarding our services, please call 03 9481 4167