Nebula GC – Advanced and Versatile Gas Chromatograph

The Nebula GC is a sophisticated and highly adaptable gas chromatograph, engineered to support a wide array of analytical applications. Equipped with five different detectors—Thermal Conductivity Detector (TCD), Flame Ionization Detector (FID), Flame Photometric Detector (FPD), Nitrogen Phosphorus Detector (NPD), and Electron Capture Detector (ECD)—it offers exceptional flexibility for diverse analyses. Its high-precision column oven accommodates up to three columns and three detectors simultaneously, each of any type.

Temperature Control and Oven Design

Nebula GC features a stable and programmable 10-segment temperature control system, including overheat protection and safety mechanisms. An automated rear door control accelerates oven cooling, enhancing efficiency. The system supports up to three gas paths with precise pressure regulation, delivering digital readouts of pressure and flow with a resolution of 0.1 psi.

Optional attachments such as blowback systems, precutters, methane converters, and cracking ovens further extend the instrument’s capabilities, making Nebula GC a comprehensive and customizable solution for advanced gas chromatography.

Key Features of Nebula GC Series

Automation & High Efficiency

Fully software-controlled, the Nebula GC supports automated operations such as temperature regulation, ignition, baseline setup, sensitivity adjustment, polarity selection, and bridge temperature control.

Electronic Pressure Controllers (EPC) manage carrier gas, combustion gases, split flow, and makeup gas with high accuracy. Additional channels can be added as needed.

The smart PID control system governs detector and oven temperatures.

Easy to operate with user-friendly software, allowing for rapid analysis and improved productivity.

Equipped with extensive self-diagnosis and warning systems, including alerts for gas absence and overheating.

Features like six-way sampling valves, automated backflushing, precutting, and septum purging address various analytical requirements.

User-Friendly Interface

Large LCD display shows real-time operational status and temperatures.

Analytical parameters can be configured either through the onboard control panel or PC software.

Online support system ensures smooth operation and troubleshooting.

High Accuracy & Performance

Offers high repeatability in retention time and peak area.

Detectors provide low noise and high sensitivity with a stable baseline.

Controls the temperature of up to eight zones including the column oven, injector, TCD, FID, etc.

Precise column oven temperature ensures optimal separation conditions for sample components.

Flexibility & Expandability

Simultaneous operation with three detectors, three injectors, and three columns in various configurations.

Supports three gas channels, each aligned with a signal output.

Column oven accommodates capillary, packed glass, and stainless steel columns.

Exceptional reproducibility: Using ECD with capillary column and split injection yields RSD < 2.6% for six consecutive injections.

Versatile Sampling Methods

Supports split/splitless (SSL) capillary sampling, packed column sampling, and cryogenic injection.

Optional autosampler and six-way valve injection available.

Integrated with features like automated backflushing, carrier gas switching, septum purge, and fully automated analysis with single injection.

Compatible with add-ons such as methanizer, pyrolyzer, thermal desorber, purge and trap system, and more.

Advanced Detector and Gas Control Features

EPC-Based Gas Control Expansion

Manages up to 6 gas channels, expandable based on user requirements.

Specifications:

TCD Enhancements

Reduced dead volume and shorter stabilization time.

Compatible with capillary columns.

Capable of analyzing antioxidants.

Heated by a cross-fed constant temperature source, increasing sensitivity and lifespan.

Delivers RSD < 2.5% for benzene in toluene (split injection) over six replicates.

ECD Enhancements

Detector volume minimized to microliter scale for stable baseline and capillary compatibility.

Significantly improved sensitivity, achieving LOD as low as 2×10⁻¹⁴ g/mL.

Optional Accessories & Software Features

Supports autosamplers, SSL injectors, methanizers, thermal desorbers, and purge and trap systems.

User interface is intuitive yet powerful, capable of processing up to 30 chromatograms simultaneously.

Includes data reduction tools, full equipment control, and analysis optimization functions.

Enables independent data sampling and real-time parameter adjustment.

Integrated baseline reduction feature improves clarity of results.

Software Specifications

Application Examples

Benzene analysis in toluene using capillary column and TCD.

Milk fatty acid analysis using FID with programmable column temperature control.

Organophosphorus pesticide analysis using capillary column and FPD.

Organochlorine pesticide analysis with capillary column and ECD under temperature programming.

Nebula GC combines cutting-edge technology, high customization, and ease of use, making it a powerful and reliable tool for laboratories seeking precision, versatility, and efficiency in gas chromatography.