LECO QUADJET Thermal Modulator

The QUADJET Thermal Modulator from LECO delivers industry-leading performance for comprehensive two-dimensional gas chromatography (GC×GC). Compared to alternative thermal or valve-based modulators, QUADJET stands out for its exceptional ruggedness, long-term reliability, and superior modulation efficiency.

This GC×GC modulation system uses a dual-stage thermal jet modulator positioned between the first- and second-dimension columns. The design enables true on-column cryo-focusing, significantly enhancing peak sharpness, detectability, and separation power—especially for co-eluting compounds in complex sample matrices.

Key benefits

• Highest modulation performance for GC×GC
  Enhances peak detectability and improves separation of co-eluting compounds.
• Dual-stage thermal jet design
  Provides efficient trapping and re-injection between columns.
• On-column cryo-focusing
  Improves sensitivity and separation of closely eluting analytes.
• Exceptional robustness and reliability
  Designed for routine, long-term GC×GC operation.

Thermal modulation without liquid nitrogen

Unlike traditional cryogenic modulators, the QUADJET thermal modulator is consumable-free. It delivers the full performance benefits of thermal modulation without the need for liquid nitrogen, eliminating cryogen costs, logistical complexity, and downtime—while maintaining consistent, high-quality results.

The QUADJET Thermal Modulator is an ideal choice for laboratories seeking maximum GC×GC performance with minimal operational burden, particularly in demanding applications involving highly complex samples.