GC with TCD/FID for Hydrocarbons
Budget: ₹150,000 – ₹250,000 INR
I am putting together a self-funded, individual project that calls for a fully specified gas-chromatography system fitted with both a Thermal Conductivity Detector (TCD) and a Flame Ionization Detector (FID).
The goal is to separate and quantify light hydrocarbons—specifically methane, ethane, ethylene, acetylene and closely related species—in liquid samples that will be injected directly or via headspace.
What I need from you:
• An end-to-end design covering column selection, carrier gas choice, oven programming and detector configuration so that both TCD and FID work in tandem without signal overlap.
• A step-by-step method for sample preparation and injection that delivers sharp peaks and reliable quantitation for the compounds listed above.
• Calibration strategy and reference standards, including expected detection limits for each analyte.
• A bill of materials and schematic drawings that I can hand to a machinist or supplier, plus basic control software (open-source platforms such as OpenLab, Chromeleon or similar are fine).
• Operating and maintenance procedures so I can keep the system stable once it is assembled.
Acceptance criteria
1. Chromatograms must show baseline-resolved peaks for methane, ethane, ethylene and acetylene in a single run.
2. Method must reach sub-ppm detection limits on both detectors using liquid sample injections of ≤1 µL.
3. All documentation—schematics, BOM, SOPs and calibration files—delivered in editable formats.
If you have hands-on experience building or modifying GC units and optimising TCD/FID setups for light hydrocarbons, I’d like to see your approach and comparable results you’ve achieved.
The goal is to separate and quantify light hydrocarbons—specifically methane, ethane, ethylene, acetylene and closely related species—in liquid samples that will be injected directly or via headspace.
What I need from you:
• An end-to-end design covering column selection, carrier gas choice, oven programming and detector configuration so that both TCD and FID work in tandem without signal overlap.
• A step-by-step method for sample preparation and injection that delivers sharp peaks and reliable quantitation for the compounds listed above.
• Calibration strategy and reference standards, including expected detection limits for each analyte.
• A bill of materials and schematic drawings that I can hand to a machinist or supplier, plus basic control software (open-source platforms such as OpenLab, Chromeleon or similar are fine).
• Operating and maintenance procedures so I can keep the system stable once it is assembled.
Acceptance criteria
1. Chromatograms must show baseline-resolved peaks for methane, ethane, ethylene and acetylene in a single run.
2. Method must reach sub-ppm detection limits on both detectors using liquid sample injections of ≤1 µL.
3. All documentation—schematics, BOM, SOPs and calibration files—delivered in editable formats.
If you have hands-on experience building or modifying GC units and optimising TCD/FID setups for light hydrocarbons, I’d like to see your approach and comparable results you’ve achieved.