What is a Nitrogen Analyzer? (Detailed Explanation)
A nitrogen analyzer is a sensitive laboratory instrument that is utilized in the determination of the nitrogen in solid, liquid, and gas samples or the purity of nitrogen.
It is commonly used in:
- Food testing laboratories
- Agriculture testing, Fertilizer testing.
- Chemical manufacturing
- Environmental & water labs
- Pharma QC labs
- Gas cylinder purity testing
- Protein content and determination of the quality of the fertilizer as well as the purity of the gas can be determined with the help of nitrogen percentage.
Types of Nitrogen Analyzers
Kjeldahl Nitrogen Analyzer (Wet Chemistry Method)
Food, feed, agricultural testing, and soil.
Working Principle
- Based on the Kjeldahl Method:
- Digestion – Nitrogen organics – ammonium sulfate.
- Neutralization- Changes NH4+ into NH3.
- Distillation – Ammonia discharged.
Very sound in the analysis of proteins of:
- Milk
- Meat
- Wheat & rice
- Animal feed
- Oilseeds
Dumas / Combustion Nitrogen Analyzer.
A modern, faster method.
Working Principle
The sample is incinerated in 900-1000 Degree Celsius – Nitrogen gases generated – determined by thermal conductivity.
Used in:
- High-throughput labs
- Food & feed mills
- Research institutions
At this stage, the catalyst undergoes an interactive process with the sample to produce an analyte.
Portable Nitrogen Purity Analyzer
Applied to determine the purity of nitrogen gas in:
- Pulpmaster industrial nitrogen generators.
- Food packaging (MAP)
- Laser cutting systems
- Medical gas systems
Glassco’s Nitrogen Analysis System (Integrated Solution)
3-in-1 Advanced.
In modern laboratories, there is a preference of multi-functional systems of nitrogen analysis such as the Advanced 3-in-1 Nitrogen Analysis System and which combine:
- Digestion
- Distillation
- Titration
Click on the link to check our 3-in-1 Advanced Nitrogen Analysis system
Key Advantages:
- Reduced manual handling
- Faster analysis time
- Increased precision and consistency.
- Food, fertilizer, soil and pharmaceutical testing are safe.
- Best suited to the needs of large volume labs.
These systems are aimed to comply with international standards of testing and enhance the efficiency of the laboratory, in general.
Uses of a Nitrogen Analyzer
It is used to:
- Determine protein in food and nitrogen percent
- Determine the nitrogen content of fertilizers.
- Test the nutrient content of soil.
- Assay purity of nitrogen in gas cylinders.
- Determination of nitrogen in chemicals and pharmaceuticals.
- Measure the environmental level of nitrogen in water.
Processes of Nitrogen Analysis.
- Kjeldahl Method (most generally found in food)
- Dumas / Combustion Method
- Gas Purity Analysis
- Nitrate/nitrite procedures using UV-Vis techniques.
- Nitrogen purity detection by electrochemical means.
