EXPEC 5231 Gas chromatograph-triple quadrupole mass spectrometer, integrating the capability of gas c
hromatograph and mass spectrometer, has sufficient sensitivity and selectivity, good stability and strong anti-interference.
Therefore, it is applicable to the qualitative and quantitative analysis on high sensitivity of trace pesticides and veterinary
drugs in complex matrix.
Work environment
1. Work environment temperature: 18-25 ℃
2. Humidity in work environment: (20 ~ 60)% RH
3. Power supply: five sets of single-phase (220 ± 20) V AC, 10A, 50 Hz power supply
Accessory system
1. Computer system
Brand computer with mainstream configuration, 4GB memory, 1TB hard disk.
2. AC stabilized power supply
15KVA, input voltage of 140v-300v, output voltage of 220 V ± 1%.
3. Laser printer
6018L, black and white laser printer.
4. Mechanical pump
Pumping speed: 65m3/h, 220V power supply, 800W.
Performance Advantages
Ion Source
A cold-point-free GC-MS/MS interface and EI ion source ensure efficient sample transport and ionization.
Axial Accelerating Collision Cell
- Increased scan speed
- Improved collision efficiency
- Eliminated crosstalk between ion pairs, reducing cross-contamination.
Cascaded QQQ Mass Analyzer
- Utilizes a tandem quadrupole mass analyzer and hexapole collision cell design.
- A stable dual mass analyzer capable of performing various mass analysis scans, suitable for various mass spectrometry research.
- Highly efficient collision cell maximizes ion transport.
- Includes Full Scan, Selected Ion Scan (SIM), Single Reaction Monitoring (SRM), and Daughter Ion Scan. Various ion scanning modes including precursor ion scanning, neutral loss scanning, and multiple reaction monitoring (MRM) scanning.
Pure molybdenum quadrupole mass analyzer
- Pure molybdenum quadrupole ensures superior material stability and guarantees mass axis stability.
- Gold-plated surface with inert treatment eliminates organic deposits.
Intelligent MRM
- Intelligent MRM provides users with convenient method editing and modification.
- It can analyze more target compounds in a single run, allowing for more efficient use of instrument analysis time and increasing sample throughput.
Excellent sensitivity
- Highly efficient EI ion source ionization and ion transport efficiency.
- Innovative axial acceleration collision cell technology significantly improves collision efficiency.
- Innovative pulse counting detection technology provides lossless detection of ion signals and effectively filters noise interference.
Excellent stability
- Innovative dual-channel RF power supply closed-loop adaptive adjustment technology improves the stability of the quadrupole RF power supply.
- Innovative temperature and humidity alternation resistance technology adapts to a wider range of operating temperatures and humidity.


