Gas Composition Testing

Leeder Analytical offers specialised laboratory capabilities for detailed gas composition analysis using high-resolution gas chromatography (GC) instrumentation. Our NATA-accredited lab is equipped to support hydrocarbon profiling, trace sulphur detection, and compositional analysis of complex gas and condensate samples.

We work with clients across energy, petrochemical, and environmental sectors who require precise, method-driven insights to inform process design, meet compliance standards, and optimise product quality.

Contact Us Today

Looking for full-service testing or regulatory compliance support?
See our Gas and Condensate Analysis services for commercial applications and end-to-end testing solutions.

Analytical Capabilities

Natural Gas Stream Characterisation Condensate and Liquid Hydrocarbon Profiling
Detailed analysis of gas-phase hydrocarbons and permanent gases, including energy content and contaminants.

• Hydrocarbon Distribution (C1–C12+): Detailed C1-C12+ characterisation for composition profiling
• Permanent Gases: Quantification of N₂, CO₂, H₂, and inert species
• BTU and Calorific Value Calculations: Energy content determination
• Trace Impurity Detection: Identification and quantification of process contaminants
• Pipeline Quality Verification: Ensuring gas meets transport and delivery specifications

Characterisation of condensates and liquid hydrocarbons to support product quality and operations.

• Detailed Hydrocarbon Composition: Complete profiling of liquid hydrocarbon components
• Distillation Range Analysis: Characterisation of boiling point distribution and volatility
• Physical Properties Determination: Density, viscosity, and other critical parameters
• Impurity Profiling: Detection of water, sulphur, and other contaminants
• Product Specification Testing: Verification against industry and customer standards

Specialised Sulphur Species Analysis Operational Process Support
Trace-level quantification of sulphur species using sulphur-specific GC detection.

• Detection of water, sulphur, and other contaminants
• Individual Sulphur Species: H₂S, mercaptans, and organic sulphur compound identification
• Corrosive Compound Detection: Quantification of materials affecting equipment integrity
• Trace Sulphur Analysis: Detection capabilities down to ppb levels
• Custom Method Development: Specialised approaches for complex sample matrices

Analytical insights to support process control, optimisation, and troubleshooting.

• Feed Characterisation: Input stream analysis for process design and optimisation
• Product Quality Monitoring: Continuous assessment of output specifications
• Catalyst Performance Evaluation: Analysis supporting catalyst efficiency and life cycle
• Treatment System Assessment: Monitoring of gas processing and purification systems
• Troubleshooting Support: Rapid analysis for operational problem resolution

Instrumentation and Methodology

All gas composition and condensate characterisation work is conducted using:

  • GC-FID, GC-TCD, and GC-SCD instrumentation for hydrocarbon and sulphur speciation
  • High-purity carrier gases and calibration standards traceable to NIST
  • Validated ASTM and ISO methods, with modifications for non-standard samples
  • Strict QA/QC protocols to support regulatory and audit readiness

Key Benefits:

  • Comprehensive Hydrocarbon Analysis: Complete compositional characterisation from methane to C12+ hydrocarbons, including detailed hydrocarbon distribution and impurity profiles.
  • High-Precision Sulphur Detection: Accurate quantification of total sulphur and individual sulphur species at trace levels down to ppb concentrations.
  • Quality Control & Compliance: Regular monitoring and testing to ensure product quality, process efficiency, and adherence to industry specifications.
  • Operational Support: Testing and documentation that supports process optimisation, equipment performance, and regulatory compliance requirements.

Reporting and Documentation

Our reporting outputs are tailored to meet both technical and regulatory needs:

  • Detailed Analytical Results: Complete compositional data, sulphur content analysis, BTU values, and relevant physical properties with statistical analysis.
  • Method Documentation: Comprehensive documentation of analytical procedures, calibration standards, quality control measures, and uncertainty calculations.
  • Expert Interpretation & Recommendations: Professional assessment of results with practical recommendations for process optimisation, quality control, and compliance strategies.
  • Regulatory Compliance Support: Documentation formatted to support industry specifications, regulatory requirements, and certification processes.

Who Uses These Capabilities?

These laboratory techniques support engineers, chemists, and operators across:

  • Gas Production and Processing: Field-level analysis, blending control, and impurity tracking
  • Pipeline Operations: BTU balancing, gas quality monitoring, and safety assurance
  • Refining and Petrochemicals: Feedstock assessment, catalyst protection, and specification verification
  • Environmental & Engineering Consultancies: Technical input for system design, remediation, and emissions audits

For clients needing integrated sample collection, transport logistics, or multi-sample testing programs, refer to our full Gas and Condensate testing services.

Talk to Our Analytical Team

If you require high-precision gas composition or condensate analysis capabilities, contact us to discuss instrument setup, detection limits, or method suitability for your application.

Phone: +61 3 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