1. Product introduction

Kjeldahl nitrogen determination JC-DN-04C is an instrument that calculates the protein content by measuring the nitrogen content in the sample according to the principle of constant nitrogen content in protein, also known as nitrogen analyzer, protein analyzer, crude protein analyser. Kjeldahl instrument uses Kjeldahl method to detect ammonia, protein nitrogen content, phenol, volatile fatty acid, cyanide, sulfur dioxide, ethanol and other content in grains, food, feed, water, soil, sludge, sediment and chemicals . It is widely used for nitrogen content or protein content analysis of food, crops, seeds, soil, fertilizers and other samples.
2. Product parameters
1. Determination of varieties: grain, feed, food, dairy products, beverages, soil, water, sediment and chemicals, etc.
2. Working method: semi-automatic
3. Water inlet method: tap water and distilled water.
4. Sample volume: solid 0.20g~2.00g, semi-fixed 2.00g~5.00g, liquid 10.00ml~25.00ml 5. Measurement range
: 0.1mgN~200mgN (milligram nitrogen)
6. Recovery rate: ≥99 % (relative error, including the digestion process)
7. Distillation speed: 5~15 minutes/sample (depending on the sample volume)
8. Cooling water consumption: 3L/min
9. Repetition rate: relative standard deviation <±1%
10. Power supply: AC220V/50Hz
11. Power: 1000W
12. Water supply: water temperature less than 20℃
13. Dimensions: 380mm×320mm×670mm
14. Weight: 20kg

Model differences:

3. Product Features

1. Kjeldahl nitrogen analyzer adopts microcomputer for process control.
2. Automatic distillation control, automatic water addition, automatic water level control, automatic water stop.
3. Various safety protections: digestive tube safety door device, steam generator water shortage alarm, water level detection fault alarm.
4. The shell of the instrument is made of custom-made plastic-sprayed steel plate, and the working area is made of ABS anti-corrosion panel, which is resistant to chemical reagent corrosion and mechanical damage to the surface, and is resistant to acid and alkali.
5. Water level detection, low water level alarm, automatic power off when the instrument control system fails.
6. The tap water source is used, which has wide adaptability and low requirements for experiments.