Gas Chromatograph SX25-GC900

Model No: SX25-GC900

Features:

• Ethernet Communication Interface:
  Enables long-distance data transmission through an enterprise's internal LAN, making analysis data management more efficient and centralized.

• Innovative Injection Port Design:
  Eliminates injection discrimination. The dual-column compensation function addresses baseline drift during temperature programming and reduces background noise, effectively lowering the detection limit.

• Optimized Vaporization Chamber:
  Designed with minimal dead volume. Accessories like injection pads, liners, polarizers, collectors, and nozzles can be replaced single-handedly. Major components like packed columns, capillary injectors, TCD, and FID detectors are easily serviced with just a wrench, ensuring quick and convenient maintenance.

• Intelligent Rear Door System:
  Features stepless variable air volume control for faster system stabilization during programmed heating or cooling.

• Versatile Inlet Configuration:
  Supports up to four types of inlets, including packed column and capillary column split/splitless systems. Compatible with a variety of sample introduction systems:

  • Automatic/manual gas injectors

  • Headspace samplers

  • Thermal desorption units

  • Pyrolysis furnaces

  • Methane reformers

• User-Friendly Interface:
  Equipped with a 4.3-inch color LCD touch screen and keyboard input for intuitive user interaction.

• Dual-Stable Gas Path Design:
  Incorporates primary pressure stabilizer valves and secondary stabilizer/pressure valves for stable and precise gas flow control.

• High-Precision Temperature Control:
  Includes seven independent temperature control zones with ±0.1°C accuracy, ensuring consistent operation.

• Safety Functions:

  • Dual over-temperature protection

  • Power-off protection

  • Fault self-check and alarm system

• Linkage Trigger Signal System:
  Allows synchronized data acquisition with other connected devices.

Technical Parameters

Detector Options

Hydrogen Flame Ionization Detector (FID)

• Detection Limit: ≤ 5 × 10⁻¹² g/s
  (100 ng/µL n-hexadecane-isooctane solution)
• Operating Temperature: 450°C
• Compatible with packed and capillary columns
• Baseline Drift: ≤ 2 × 10⁻¹³ A / 30 min
• Baseline Noise: ≤ 3 × 10⁻¹⁴ A
• Linear Range: ≥ 10⁷

Thermal Conductivity Detector (TCD)

• Sensitivity: > 5000 mV·mL/mg
  (50 mg/mL toluene-benzene solution)
• Operating Temperature: 400°C
• Baseline Drift: ≤ 0.1 mV / 30 min
• Baseline Noise: ≤ 0.03 mV
• Linear Range: ≥ 10⁵ (±10%)

Flame Photometric Detector (FPD)

• S Detection Limit: ≤ 5 × 10⁻¹² g/s
• P Detection Limit: ≤ 4 × 10⁻¹² g/s
  (10 ng/µL methyl parathion-ethanol solution)
• S Linear Range: ≥ 10³
• P Linear Range: ≥ 10⁴
• Operating Temperature: 350°C

Injection Methods Supported

1. Packed column injection
2. Packed column gasification injection
3. Capillary split/splitless injection (with back pressure valve control and linear split)
4. Six-way valve gas injection
5. Online injection – 24-hour continuous unattended operation

Power Supply

AC 220V ±10%, 50/60Hz

Accessories

• Standard Accessories:
  • FID Detector
  • Chromatography Workstation Software
  • Capillary Sampler
• Optional Accessories:
  • TCD Detector
  • FPD Detector
  • Sample Injection System
  • Chromatographic Columns
  • Nickel Catalytic Converter

Dimensions & Weight