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| Brand | EXPEC (Puyu Technology) |
|---|---|
| Origin | Zhejiang, China |
| Model | EXPEC 3500 |
| Instrument Type | Portable GC-MS |
| Application Scope | Field-based VOCs and SVOCs analysis in air, water, and soil |
| Compliance Basis | MIL-STD-810G vibration & shock testing for vacuum system |
| Operational Interface | Guided workflow with real-time Chinese-language data display |
| Maintenance Mode | Automated full-system self-maintenance with scheduled unattended diagnostics |
| Brand | FPI (Fortune Photonics Instrumentation) |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | OEM Manufacturer |
| Country of Origin | China |
| Model | Mars-400 Plus |
| Instrument Type | Portable GC-MS |
| Mass Range | 15–550 amu |
| Mass Resolution | Unit mass resolution |
| Detection Limit | < ppb (for selected VOCs/SVOCs) |
| Maximum Scan Rate | 10,000 amu/s |
| Sensitivity | Optimized for trace-level detection in field conditions |
| Weight | 17 kg |
| Power Supply | Integrated rechargeable battery pack |
| Carrier Gas | Built-in helium or hydrogen micro-gas cylinder (optional) |
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