
modular design
programmable mass flow controls
fully automated data processing system
top quality electronic components
Suitable for different kinds of sample matrices and concentrations
robust, accurate and flexible
professional technical support
displays real time chromatograms
fully automated data processing system
Total Nitrogen/Sulfur Analyzer

Typical Applications
- Petrochemical industries
- scientific research institutions and instrument companies/analytical laboratories
- in-house QA/QC departments
- commodity inspection
- testing institutions
Analytical methods
Total sulfur analysis:
Ultraviolet fluorescence determines total sulfur content in accordance with ASTM D5453 D6667 D7183.
Total nitrogen analysis:
Chemiluminescence determines total nitrogen content in accordance with ASTM D4629 D5176 D5762 D6069 D7184.
Product Features
- High sensitivity and broad detection range
- Unique structure of rotating injector can prevent air interference and sulfur adsorption when solid or high viscosity samples are injected.
- The “plug and play” constant speed liquid sampler dispenses with the need for a data transfer and power cable between sample injector and main unit, for greater convenience.
- Sampler with vertical injection of solid or liquid samples reduces the footprint of the instrument.
- Smaller, integrated, automated gas/liquid injector requires no extra space, its unique sampler uses air pressure balancing to prevent variations in the sample pressure causing variations in the amount of sample injected, and guarantees sample injection under consistent pressure and volume.
- Pre-gasification technique for liquid samples can prevent bubbles generated in the sample tube from causing variations in the amount of sample injected.
- Compared to polytube membrane dryer, the extension-monotube membrane dryer can dry the gas more efficiently without any carbon deposition.
- Quick-change non-adsorbing filter in the outlet of the cracking tube prevents dryer and detector from being contaminated by carbon deposition.
- Automatic thermal conduction mass flow controller, software provides automatic control of the gas flow rates and maintains a constant flow rate, providing precise and quantitative results by ensuring the actual flow rate is consistent with the calibration.
- Straightforward software operation. All the parameters and functions such as calibration and analysis can be set up in the same screen.
Technical parameters
Oven | Ambient to 1100 °C, accurate to 2.5 °C |
Flow rate | 0-500 mL/min, accurate to 1.5 % |
Detection range | sulfur 0.15 ppm ~ 10 %;nitrogen 0.05 ppm ~ 10 % ( without further dilution) |
Detection limit | sulfur 0.05 ppm;nitrogen 0.05 ppm |
Precision | 10 % (0 ppm – 5 ppm) 5 % (5 ppm – 100 ppm) 2,5 % (>100 ppm) |
Product modules

LAB TN
Total Nitrogen Analyzer
LAB TS
Total Sulfur Analyzer
LAB TN/TS
Total Nitrogen/Sulfur Analyzer