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| Brand | Thermo Fisher |
|---|---|
| Origin | Shanghai, China |
| Model | Orion™ 3106 COD |
| Instrument Type | Online Analyzer |
| Measurement Principle | Potassium Dichromate Digestion with Photometric Detection |
| Wavelength | 450 nm |
| Measurement Ranges | 20–200–800–2000 mg/L COD |
| Accuracy | ±5 mg/L (for values <50 mg/L) or ±10% (for values >50 mg/L) |
| Repeatability | ≤5% |
| Limit of Detection (LOD) | 4 mg/L |
| Cycle Time | 40 min per sample |
| Sample Throughput | 500 samples per batch |
| Brand | Thermo Fisher Scientific |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic (China-manufactured) |
| Model | Orion 8006cX Online COD Analyzer |
| Instrument Type | Online Analyzer |
| Measurement Range | 0–1000 mg/L and 1000–5000 mg/L |
| LOD | 10 mg/L |
| Chloride Interference Tolerance | up to 5000 mg/L |
| Compliance | HJ/T 399–2007, HJ 377–2019, HJ 35X–2019 |
| Certification | CCEP (China Environmental Protection Product Certification) |
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