Kjeldahl Nitrogen Analyzer
A Kjeldahl nitrogen analyzer is a laboratory instrument that automates the Kjeldahl method to determine the nitrogen and protein content in a sample. This analysis is a standard requirement for quality control, nutritional labeling, and regulatory compliance in the food, agriculture, and environmental science sectors. The instrument performs the critical steps of distillation and titration required for an accurate measurement.
For a detailed explanation of the working principles, the individual components of the system, and its specific applications, please read our comprehensive guide: What Is a Kjeldahl Nitrogen Analyzer?.
Q&A:
1. Q: Why choose a HINOTEK Kjeldahl Nitrogen Analyzer?
Choosing HINOTEK means investing in proven reliability, performance, and value. With nearly 20 years of manufacturing expertise, we offer an extensive portfolio of 6 models Kjeldahl Nitrogen Analyzer, all rigorously quality-controlled and backed by dedicated global support. Our efficient production provides you with premium technology at a competitive price.
2. Q: Are there alternatives to the Kjeldahl Nitrogen Analyzer?
A: Yes, you can also consider the Dumas Method. Please refer to the table below:
| Feature | Kjeldahl Method | Dumas Method |
| Principle | Wet chemical digestion and titration | High-temperature combustion and gas analysis |
| Time per Sample | 30–90 minutes | 3–5 minutes |
| Reagents | Sulfuric acid, NaOH, boric acid, catalysts | High-purity oxygen, helium/CO₂ carrier gas |
| Detection | Colorimetric or potentiometric titration | Thermal conductivity detector (TCD) |
| Sample Flexibility | High (handles solids, liquids, difficult matrices) | Moderate (can be challenging for liquids) |
| Cost per Analysis | Lower | Higher |
| Regulatory Status | Globally recognized reference method (AOAC, ISO) | Approved for many, but not all, applications |
| Key Advantage | High accuracy, versatility, established standard | High speed and throughput, no corrosive liquid waste |
3. Q: What kind of quality and support can I expect?
A: You can purchase with complete confidence. Every instrument undergoes strict quality control before shipping. We provide expert remote installation and training support to get your team running quickly. All our products are backed by a full warranty and complimentary lifetime technical guidance to ensure your long-term success.
Need more details on process or logistics? For full information on purchasing, payment, and global shipping, please visit our complete Purchasing & Support Guide.