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| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | SJB-801 |
| Instrument Type | Portable |
| Detection Principle | Anodic Stripping Voltammetry (ASV) |
| Detectable Metals | Pb, Cd, Cu, As, Hg, Zn, Se, Mn, Ni (9 elements) |
| Analysis Time | ≤3 min per sample |
| Accuracy | ±5% (or ±5.0 µg/L for elements ≤100 µg/L |
| Resolution | 0.1 µg/L |
| Detection Limits | Pb/Cd/Cu/As ≤0.5 µg/L |
| Repeatability | RSD ≤3% |
| Data Storage Capacity | 2000 measurement records |
| IP Rating | IP65 |
| Power Options | 4×AA Ni-MH rechargeable batteries, USB power supply (5 V), external mobile power bank, or AC adapter (compatible with standard smartphone chargers) |
| Compliance | GLP-compliant data management, ASTM D3559, ISO 8692, USP <232>/<233>, and EPA Method 7000B (ASV adaptation) |
| Brand | Leici |
|---|---|
| Model | SJG-781 |
| Origin | Shanghai, China |
| Instrument Type | Online Analyzer |
| Detection Principle | Anodic Stripping Voltammetry (ASV) |
| Target Metals | Pb, Cd, Cu (dual/multi-parameter) |
| Accuracy | ±10% or ±5 µg/L (at ≤50 µg/L) |
| Resolution | 0.01 µg/L |
| Detection Limit | 1 µg/L |
| Measurement Range | 0–100 µg/L and 100–1000 µg/L per metal (expandable to 10 mg/L) |
| Repeatability | 5% |
| Zero Drift | ±5 µg/L/24 h |
| Span Drift | ±5%/24 h |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Dimensions | 400 × 550 × 168 mm |
| Weight | 50 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (PRC) |
| Model | SJG-782 |
| Quotation | ¥78,000 CNY |
| Instrument Type | Online Analyzer |
| Detection Principle | Spectrophotometry (Diphenylcarbazide Method) |
| Target Analyte | Hexavalent Chromium (Cr(VI)) |
| Accuracy | ±10% of full scale |
| Resolution | 0.001 mg/L |
| Measurement Range | 0.00–5.00 mg/L |
| Repeatability | ≤5% RSD |
| Stability | ≤10% FS/4 h |
| Zero Drift | ±5% FS/24 h |
| Span Drift | ±5% FS |
| LOD | 0.01 mg/L |
| MTBF | ≥720 h |
| Power Supply | AC 220 V ±10%, 50 Hz ±1% |
| Dimensions (W×D×H) | 400 × 550 × 1680 mm |
| Weight | 50 kg |
| Display | 7-inch color TFT touchscreen (Chinese UI) |
| Calibration Modes | Manual / Cyclic / Timed / Continuous |
| Measurement Modes | Manual / Cyclic / Timed / Continuous |
| Communication Interfaces | RS-232 or RS-485 (user-selectable) |
| Data Storage | Internal non-volatile memory with timestamped logging |
| Alarm Output | Dual-level (high/low) concentration threshold relay output |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | SJB-802 |
| Instrument Type | Portable |
| Detection Principle | Anodic Stripping Voltammetry (ASV) |
| Detectable Metals | Pb, Cd, Cu, As, Hg, Zn, Se, Mn, Ni, Cr (dual/multi-parameter) |
| Accuracy | ≤ ±5% or ±3.0 µg/L (for Hg) |
| Detection Limit | Pb, Cd, As, Cu ≤ 0.5 µg/L |
| Electrode Systems | Triple-electrode configuration & disposable screen-printed electrodes (SPEs) |
| Measurement Time | <5 minutes per analysis |
| Data Storage | Up to 2000 records with GLP-compliant audit trail |
| Environmental Rating | IP65 |
| Power Supply | Rechargeable Ni-MH batteries (4×AA), USB power, AC adapter, or portable power bank |
| Compliance | Designed for field-deployable water quality testing in accordance with EPA Method 7000B, ISO 11929, and ASTM D3559/D5673 principles |
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