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Kjeldahl Systems

Labmate Kjeldahl Systems are designed to determine nitrogen content in organic compounds in diverse settings. They come with excellent storage capacities, ranging from solid and liquid samples. Their microprocessor controls automate distillation, titration, calculation, printing, and waste discharge. These simplify operation with LCD touchscreens and ensure smooth testing through real-time monitoring. Our Kjeldahl Systems include Kjeldahl Analyzer and Graphite Digestor.

Automatic Kjeldahl Analyzer LMKD-B201

  • Measuring Range: 0.1 mg to 240 mg N
  • Analysis time: 5 to 10 min/sample
  • Reproducibility: Average value relative error ≤±0.5%
  • Burette volume: 2.0 μL/step
  • Recovery: ≧99.5%

Kjeldahl Analyzer LMKD-A201

  • Measuring Range: 0.1 mg to 240 mg N
  • Recovery: ≧99.5%
  • Sample Capacity: Solid ≦6 g/sample, liquid≦16 mL/sample
  • Distillation Speed: 3 to 6 min/sample
  • Cooling Water Consumption: 1.5 L/min
Automatic Kjeldahl Analyzer LMKD-B202
  • Measuring Range: 0.1 mg to 240 mg N
  • Reproducibility: Average value relative error ≤±0.5%
  • Analysis time: 5 to 10 min/sample
  • Burette volume: 1.0 μL/step
  • Recovery: ≧99.5%
Fully Automatic Kjeldahl Analyzer LMKD-C201
  • Measuring Range: 0.1 mg to 240 mg N
  • Repeatability (RSD): 0.5% RSD
  • Cooling Water Consumption: 15℃ 0.5 L/min
  • Data Storage Capacity: 1 million pieces
  • Steam Delay Function: Yes

Automatic Kjeldahl Analyzer LMKD-C202

  • Measuring range: 0.1 mg N to 200 mg N (nitrogen content 0.1% to 99%)
  • Working mode: Automatic and manual (without titration)
  • Recovery rate: ≥ 99 % (relative error, include digestion process)
  • Repetition rate: Relative standard deviation < ±1%
  • Working hours: Distillation time: 5 to 15 minutes (customizable)

Graphite Digestor LMKGD-A100

  • Temperature Range: RT + 5 - 450 °C
  • Temperature Accuracy: ±1 °C (450 °C)
  • Maximum Capacity: 20 pcs/batch
  • Digestion tube capacity: 300 ml
  • Heating Method: Infrared heating and high-purity graphite conduction
Graphite Digestor LMKGD-A101
  • Temperature Range: 5 °C to 450 °C
  • Temperature Accuracy: ± 1 °C
  • Maximum Capacity: 20 pcs / batch
  • Digestion Tube Capacity: 300 ml
  • Heating Method: Infrared heating and high-purity graphite conduction
Automatic Kjeldahl Analyzer LMKD-B203
  • Measurement Range: 0.1 to 210 mgN
  • Analysis Time: 4 to 6 min/sample
  • Sample Capacity (Solid): < 6g (SOLID) < 16mL
  • Repeatability: ±0.5%
  • Recovery Rate: ≥ 99.5%

Kjeldahl Digestion Unit LMKD-B204

  • Capacity Per Batch: 20 pcs/batch
  • Heating Method: Infrared heating and high graphic conduction
  • Heating Insulation Method: Unique air duct insulation technology
  • Digestion Tube Capacity: 300 mL
  • Temperature Range: Room temperature +5ºC to 450ºC

Frequently Asked Questions

What are Kjeldahl Systems?

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Kjeldahl Systems are instruments designed for determining the nitrogen contents in organic and inorganic substances.

Can Kjeldahl Systems be used for quality control in food manufacturing?

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They are used in food manufacturing to determine protein content in raw ingredients, intermediate products and finished goods.

Can Kjeldahl Systems be used to measure nitrogen in liquid samples?

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They are used to measure nitrogen in liquid samples such as milk, beverages and wastewater.

How do Kjeldahl Systems handle volatile nitrogen compounds?

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They trap volatile ammonia-based compounds during distillation.

Can Kjeldahl Systems be used for determination of nitrogen content in cereals and grains?

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They are commonly used for determining nitrogen content in cereals and grains that helps to estimate its protein content.

Can Kjeldahl Systems be used for high nitrogen samples like fertilizers?

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They provide a reliable measurement of total nitrogen in high nitrogen samples such as fertilizers.