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| Brand | East & West Analysis |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Instrument Type | Time-of-Flight Mass Spectrometer |
| Chromatography Configuration | Comprehensive Two-Dimensional Gas Chromatography (GC×GC) |
| Model | GCxGC TOF MS 3300 |
| Mass Range | Not specified |
| Resolution | Not specified |
| Sensitivity | Not specified |
| Scan Speed | 500 spectra/sec (≥15 kHz pusher frequency) |
| Brand | Dongxi Analytical |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | GC-MS3110 |
| Instrument Type | Single Quadrupole Mass Spectrometer |
| GC/MS Configuration | Conventional Benchtop GC-MS |
| Mass Range | 1.5–800 Da |
| Resolution | 2 M (10% valley definition) |
| Sensitivity | 30:1 (S/N for 1 pg octafluoronaphthalene, m/z 272, in full-scan mode) |
| Scan Speed | 6000 u/sec |
| Brand | East & West Analysis |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Instrument Type | Single Quadrupole Mass Spectrometer |
| GC Configuration | Conventional Capillary GC-MS |
| Mass Range | 1.5–1100 amu |
| Mass Resolution | Unit Mass Resolution |
| Sensitivity | ≥2000:1 S/N for 1 pg Octafluoronaphthalene (OFN) in Electron Ionization (EI) mode |
| Scan Speed | Up to 10,000 amu/s |
| Detector | Dual-Stage Electron Multiplier with High-Energy Dynode Post-Focusing Assembly |
| Pressure Control Accuracy | ±0.001 psi |
| Column Oven | Air-heated, accommodates up to two capillary columns and three detector modules |
| Ion Source | High-Temperature Inert EI Source with dual long-life inert filaments |
| Brand | Dongxi Analytical |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Instrument Type | Single Quadrupole GC-MS |
| GC Configuration | Conventional Capillary GC-MS |
| Mass Range | 1–1000 amu |
| Mass Resolution | Unit Mass Resolution (UMR) |
| Sensitivity | 100:1 (Signal-to-Noise Ratio, S/N, for m/z 69 of perfluorotributylamine, PFTBA, at 1 pg on-column) |
| Scan Speed | Up to 10,000 amu/s |
| Ion Source | Dual-Mode Electron Ionization (EI) and Programmable Positive Chemical Ionization (PCI) |
| Ion Optics | DC Compensation Voltage Tuning |
| Filament Control | Adaptive Emission Current & Electron Energy Regulation |
| GC Oven Temperature Stability | ±0.01 °C |
| Pressure/Flow Control | Third-Generation Electronic Pneumatic Control (EPC) Module |
| Optional Accessory | In-House Designed Low-Noise Mechanical Pump Enclosure |
| Brand | Dongxi Analysis |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Instrument Type | Single Quadrupole Mass Spectrometer |
| GC Configuration | Conventional Capillary Gas Chromatograph |
| Mass Range | Not Specified (Typical for Single Quadrupole: 10–1000 u) |
| Resolution | Unit Mass Resolution |
| Sensitivity | Not Specified (Typical: <10 fg OFN in Full Scan, S/N ≥ 50:1) |
| Scan Speed | Not Specified (Typical: Up to 10,000 Da/sec) |
| Carrier Gas Control | Electronic Pressure Control (EPC) |
| Vacuum System | Configurable Dual-Stage Pumping (Turbo + Roughing Pump Options) |
| Library Compatibility | NIST, Wiley, and Custom User Libraries |
| Interface Options | Purge & Trap, Thermal Desorption Unit (TDU), Headspace Sampler, Direct Insertion Probe (DIP) |
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