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| Brand | Peiou |
|---|---|
| Origin | Shanghai, China |
| Model | SKD-2000 |
| Instrument Type | Kjeldahl Nitrogen Determinator |
| Automation Level | Fully Automated |
| Nitrogen Determination Range | 0.1–300 mg N |
| Sample Weight Capacity | Solids 0.1–5 g |
| Distillation Time per Sample | 2–6 min |
| Repeatability | ≤ ±0.3% RSD |
| Recovery Rate | ≥99.8% |
| Linearity Range | 0.1–300 mg N |
| Linearity Error at 4× Nitrogen Load | ≤ ±0.8% |
| Compatible Standard Acid Concentration | 0.01–1.0 mol/L HCl or H₂SO₄ |
| Power Consumption | ~1800 W |
| Dimensions (L×W×H) | 500×450×600 mm |
| Titration Precision | ±0.15% |
| Adjustable Alkali Addition Steps | 1–10 segments with 0–15 s intervals |
| Delay Time Setting | 0–1800 s |
| Reagent Pump Volume Range | 0–150 mL (1 mL resolution) |
| Distillation Steam Continuity | Continuous steam generation with auto-refill without interruption |
| Brand | Peiou |
|---|---|
| Origin | Shanghai, China |
| Model | SKD-5000 |
| Instrument Type | Fully Automated Kjeldahl Nitrogen Determinator |
| Nitrogen Determination Range | 0.1–500 mg N per sample |
| Cation Exchange Capacity (CEC) Range | 1–100 cmol/kg |
| Sample Weight | Solid (e.g., soil): 0.5–10 g |
| Liquid | 1–100 mL |
| Distillation Time | 2–5 min per sample |
| Repeatability | ≤±0.2% for nitrogen |
| Recovery Rate | ≥99.8% for nitrogen |
| Linear Range | 0.1–500 mg N |
| Linearity Error at 4× Nitrogen Load | ≤±0.5% |
| Compatible Standard Acid Concentration | 0.01–1.5 mol/L HCl or H₂SO₄ |
| Power Consumption | ~2000 W |
| Dimensions (L×W×H) | ~550×500×650 mm |
| Titration Resolution | 0.8 µL/step |
| Pump Accuracy | RSD <0.002 µL/step |
| Repeatability (RSD) | <0.5% |
| Delay Time Setting | 0–1800 s |
| Digestion Tube Compatibility | 300 mL and 650 mL tubes |
| Dual-Mode Operation | Manual & Automatic |
| Distillation Power | Adjustable |
| Safety Features | Real-time distillation cup temperature monitoring, condenser water flow/pressure auto-detection, acid/alkali/boric acid/diluent level sensors, door-closed status verification, dry-burn prevention via dual liquid-level modeling |
| Brand | Peiou |
|---|---|
| Origin | Shanghai, China |
| Model | SKD-1000 |
| Instrument Type | Kjeldahl Nitrogen Determinator |
| Automation Level | Fully Automated |
| Nitrogen Determination Range | 0.1–200 mg N per sample |
| Distillation Time | 3–8 min per sample |
| Repeatability | ≤ ±0.5% RSD |
| Sample Weight Capacity | Solids 0.1–2 g |
| Nitrogen Recovery Rate | ≥99.5% |
| Power Consumption | ~1500 W |
| Dimensions (L×W×H) | 450 × 400 × 550 mm |
| Linear Range | 0.1–200 mg N |
| Linearity Error at 4× Nitrogen Load | ≤ ±1% |
| Compatible Standard Acid Concentrations | 0.01–0.5 mol/L HCl or H₂SO₄ |
| Titration Resolution | 0.8 µL/step |
| Acid Delivery Precision | ≤0.002 µL/step |
| Alkali Addition | Programmable segmented dosing (1–10 pulses, 0–15 s interval) |
| Delay Time Setting | 0–1800 s (for nitrate-nitrogen analysis) |
| Reagent Pump Volume Range | 0–150 mL (1 mL increments) |
| Steam Power Adjustment | Continuously variable |
| Safety Features | Dual-level steam chamber monitoring, condensate flow interruption protection, door interlock sensing, real-time cooling water pressure/flow detection, reagent level monitoring, and jacket temperature control |
| Brand | Peiou |
|---|---|
| Origin | Shanghai, China |
| Model | SKD-1800 |
| Instrument Type | Kjeldahl Nitrogen Determinator |
| Automation Level | Fully Automated |
| Nitrogen Determination Range | 0.1–240 mg |
| Distillation Time per Sample | 3–8 min |
| Repeatability (RSD) | ≤0.5% |
| Sample Weight Capacity | ≤5 g (solid) or ≤15 mL (liquid) |
| Nitrogen Recovery Rate | ≥99.5% |
| Power Consumption | 750–1500 W |
| Dimensions (L×W×H) | 370 × 300 × 680 mm |
| Linearity Range | 0.1–240 mg nitrogen |
| Brand | Peiou |
|---|---|
| Origin | Shanghai, China |
| Model | SKD-1100 |
| Instrument Type | Kjeldahl Nitrogen Determinator |
| Automation Level | Fully Automated |
| Nitrogen Determination Range | 0.1–200 mg N |
| Linear Range | 0.1–200 mg N |
| Sample Weight (Solid) | 0.1–5 g |
| Distillation Time per Sample | 3–5 min |
| Repeatability | ≤0.5% CV |
| Recovery Rate | ≥99.5% |
| Power Consumption | ~800 W |
| Dimensions (L×W×H) | 450 × 350 × 500 mm |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Regional Classification | Domestic (China) |
| Model | Leici KDN-1 |
| Instrument Type | Kjeldahl Nitrogen Determinator |
| Automation Level | Fully Automated |
| Nitrogen Determination Range | 0.1 mg – 240 mg N |
| Steam Distillation Time | Programmable up to 60 min |
| Sample Weight Capacity | ≤6 g (solid), ≤16 mL (liquid) |
| Nitrogen Recovery Rate | ≥99.5% |
| Power Consumption | 1.3 kW |
| Dimensions (L×W×H) | 400 mm × 385 mm × 735 mm |
| Brand | DELEITE |
|---|---|
| Origin | Shanghai, China |
| Model | AKN-3240 |
| Automation Level | Fully Automated |
| Nitrogen Determination Range | 0.01–240 mg N per sample |
| Distillation Time | 0–9 min/sample |
| Titration Precision | RSD < 0.0012 µL/step |
| Minimum Titration Volume | 1–20 µL/step (auto-adjusted based on standard acid concentration) |
| Recovery Rate | >99.5% |
| Power Adjustment Range | 0–1500 W |
| Linearity | RSD <1.0% across 1× to 4× sample mass (same matrix) |
| Repeatability (RSD) | <0.5% |
| Digestion Tube Compatibility | Ø42 × 300 mm (supports both 300 mL and 650 mL tubes) |
| Data Storage Capacity | ≥200,000 sample records (≥7 years at typical lab throughput) |
| Compliance | Supports audit-trail-enabled operation per GLP/GMP requirements |
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