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| Brand | Dionex |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | DX-120 |
| Instrument Age | >10 Years |
| Pump Flow Rate | 0.5–4.0 mL/min |
| Max Pump Pressure | 4000 psi (27.5 MPa) |
| Conductivity Detector Range | 0–1700 µS |
| Temperature Compensation | 1.5–1.9%/°C |
| Detector Cell Volume | 1.25 µL |
| Operating Temperature | 10–40°C |
| Dimensions (H×W×L) | 60 × 30 × 40 cm |
| Weight | ~40 kg |
| Power Input | 100 V/50 Hz, 115 V/60 Hz, or 220–240 V/50 Hz |
| Brand | Varian |
|---|---|
| Origin | USA |
| Model | SpectrAA-220 |
| Detection Principle | Flame and Graphite Furnace Atomic Absorption Spectroscopy |
| Wavelength Range | 185–900 nm |
| Graphite Furnace Detection Limit (Cd) | ≤0.37 pg |
| Flame Detection Limit (Cu) | ≤0.0057 mg/mL |
| Precision (Graphite Furnace, Cd) | RSD <2% |
| Precision (Flame, Cu) | RSD <0.3% |
| Atomization System | Transversely Heated Graphite Tube (LTT-HP/LTT-HGO compatible) |
| Sample Introduction | Manual or SPS-5 Autosampler / SIPS-10 Dilution Module (optional) |
| Light Source | Multi-element Hollow Cathode Lamps |
| Dimensions (est.) | 800 × 500 × 450 mm (L×W×H) |
| Weight (est.) | 70–90 kg |
| Compliance | ASTM E1376, ISO 8288, USP <730>, GLP-ready data handling |
| Brand | Analytik Jena |
|---|---|
| Model | multi N/C 2100 |
| Origin | Germany (manufactured), assembled/integrated in Beijing, China |
| Condition | Refurbished & fully functional |
| Operational Age | <5 years |
| Detection Principle | High-temperature catalytic oxidation + NDIR for TOC |
| TOC Range | 0–30,000 ppm (liquid), up to 150 mg C (solid) |
| TN Range | 0–300 ppm |
| TOC LOD | 50 ppt |
| TN LOD | 50 ppb |
| Oxidation Temp | up to 1,000 °C (liquid), up to 1,500 °C (solid) |
| Injection Volume | 0.01–0.5 mL |
| Precision | ≤2.0% RSD at 100 mg/L TOC |
| Resolution | 0.001 ppb |
| Salt Tolerance | ≤85 g/L |
| Particle Size Limit | ≤630 µm |
| Software | multiWin v4.x (GLP-compliant, audit trail enabled) |
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