Low-Level Sulphur Analyser

Ultra-sensitive GC solutions for trace sulphur analysis down to ppb and sub-ppb levels,
delivering high selectivity, excellent linearity, and full compliance with international standards.

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High-Precision Low-Level Sulphur Analysis

Sulphur compounds can adversely affect product quality, cause corrosion, and poison downstream catalysts. Accurate determination of individual sulphur species in liquids is therefore essential for refinery process and chemical plant control, product certification and regulatory compliance.

The GAS Sulphur Analyser for liquid samples provides a high-performance solution for sulphur speciation in liquids using proven gas chromatography with Flame Photometric Detection (FPD). The system delivers excellent selectivity for sulphur compounds, high sensitivity at low ppm and sub-ppm levels, and reliable long-term stability for routine laboratory and process applications.

All systems are designed for reliable long-term operation and full compliance with internationally recognised ASTM, ISO, UOP and EN standard methods.

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Applications

  • Supported methods:
    ASTM D5623, ASTM D5504, ASTM D6228
  • Trace Sulphur Analysis in LIquids
    Determine individual sulphur compounds in naphtha, gasoline, kerosene, diesel, and solvents for product quality control and process optimisation.
  • Chemical process monitoring
    Monitor sulphur-containing components in liquid process streams to protect catalysts, optimise production processes, and ensure consistent product quality.
  •  Quality Control
    Analyse sulphur species in intermediate and finished liquid products to support process control and specification compliance.
  • Product Development and Laboratory Testing
    Characterise sulphur compound distributions in liquid hydrocarbon samples for research, method development, and quality assurance. 
  • Standards Compliance 
    Perform validated sulphur analysis according to international standaards.

Benefits

  • Flexible Detector Configurations
    InterConnect SSL and FPD modules offer high uptime and high flexibility
  • Ultra-Low Detection Limits
    FPD offers low application limit: 5pg S/s (Methyl Parathion)
  • High Selectivity
    FPD provides high selectivity : (S/C)= 106:1
  • Automated Calibration and Stable Results
  • Modular and Scalable Design
    Available as a standalone analyser or combined with other analsers for an efficient footprint and lower total cost of ownership.

Questions or get a quote?

Interested in our Low Level Sulphur Analyser? Contact us today for a
personalised quote tailored to your application needs.

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Downloads – Low-Level Sulphur Analyser

Access product notes and application notes

Low-Level Sulphur Analyser Product Note

Explore flexible GC configurations for low-level sulphur analysis in liquid samples based on Trace GC 1600 with  FPD detection.

Download Product Note

Expertise you can rely on

With over 50 years of experience in gas chromatography, GAS delivers advanced analytical solutions for the most challenging sulphur measurements. The Low-Level Sulphur Analyser combines sensitivity, robustness, and configurability to support catalyst protection, product quality assurance, and regulatory compliance across the energy and petrochemical industries. Contact our experts to define the optimal configuration for your application.

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