The combustion of marine fuel oil, commonly known as bunker fuel, significantly contributes to air pollution in port cities across the globe. Consequently, environmental agencies have established strict fuel quality regulations requiring the precise monitoring of chemical species to curb harmful emissions and ensure safety. To address these critical analytical demands, the GAS Marine Fuel Oil Analyser provides a highly sophisticated setup based strictly on the ASTM D7845-13 methodology.
Operating on the proven Thermo Trace GC1610 platform, the system utilizes a Type B multidimensional configuration. It incorporates a modified PTV injector and advanced Deans column switching to effectively transfer target compounds between two high-performance capillary columns (Rxi-1ms and Rxi-5ms). A dedicated Flame Ionisation Detector (FID) is used exclusively to determine optimal column switching times, while the Thermo ISQ 7610 quadrupole mass spectrometer performs highly accurate quantification using Selected Ion Monitoring (SIM). This advanced architecture easily exceeds standard acceptance criteria, boasting correlation coefficients (r²) greater than 0.99 and an exceptional signal-to-noise ratio for styrene exceeding 1000:1.
Benefits
ASTM D7845 Compliant Method: Delivers a fully optimized, multidimensional GC-MS solution that strictly adheres to established international standards for chemical species analysis in marine bunker fuels.
High Sensitivity and Selectivity: Leverages advanced SIM acquisition alongside quadrupole GC-MS detection to achieve outstanding compound specificity and trace-level analytical sensitivity.
Excellent Analytical Performance: Consistently exceeds rigorous standard requirements, showcasing strong repeatability, high signal-to-noise ratios, and remarkable correlation coefficients (>0.99) across all targeted components.
Robust Multidimensional GC Configuration: Employs sophisticated Deans column switching paired with an additional FID for exact method development, ensuring flawless separation and long-term method stability.
Proven, Industrial-Grade Platform: Constructed upon the highly dependable Thermo GC architecture and managed seamlessly by Chromeleon or TraceFinder software, guaranteeing maximum laboratory uptime.
| Category | Specification |
|---|---|
| Analyser Platform | Thermo Trace GC1610 |
| Detector Type | Thermo ISQ 7610 Quadrupole Mass Spectrometer (with additional FID for switching setup) |
| Injection System | Modified PTV injector |
| Column Setup | Rxi-1ms (30m × 0.25mm) and Rxi-5ms (60m × 0.32mm) with Deans column switching |
| Configuration Type | Type B multidimensional GC/MS |
| Acquisition Mode | SIM (Selected Ion Monitoring) |
| Analytical Performance | Correlation r² > 0.99 | S/N ratio for styrene > 1000:1 |
| Software System | Chromeleon (TraceFinder also available) |
Marine Fuel Oil Quality Control: Precisely identify and quantify various chemical species within bunker fuels to thoroughly verify product quality and ensure strict specification compliance.
Environmental Compliance Monitoring: Actively support international regulatory frameworks and environmental standards by tightly monitoring marine fuel compositions to help reduce harmful ship emissions.
Refinery and Fuel Blending Operations: Provide essential analytical data to optimize fuel formulation and effectively control complex blending processes specifically tailored for marine applications.
Laboratory Reference and Certification Testing: Generate fully traceable, highly validated analytical data required for official certification, fuel verification, and the swift resolution of commercial disputes.
The analyser is fully designed to comply with the following major industry standards:
ASTM D7845
ASTM D7845-13
