For Industrial Applications Requiring Total Sulfur – Nitrogen Monitoring

XT-2000 is the most innovative laboratory analyzer on the market for reliable total sulfur and total nitrogen measurement on the market today. Our XT-2000 laboratory analyzers are designed and built for precise, accurate and reliable analysis with the flexibility that allows the measurement of a wide range of samples with a single instrument.

  • Includes patented Excimer UV technology
  • Complies with ASTM D5453, D6667andD4629, and EU certification
  • Rapid Analysis and Response Time
  • Capable of Running on Air
  • Low Utility Consumption
  • Versatility enables operation with either air or Oxygen-Argon mixtures for combustion
  • Low Maintenance

The XT-2000 offers rapid analysis combined with the highest dynamic range on the market, which allows measurement of a broad range of samples with a single method using a single calibration. The efficient and compact design reduces required benchtop space to a minimum while maintaining complete accessibility to analyzer components.


XT-2000 utilizes patented Excimer UV technology which achieves high detection sensitivity with minimal nitrogen interference. Coupled with proprietary signal processing technology enables the XT-2000 analyzers to achieve the highest dynamic range of any analyzer available on the market. These technologies enable extremely high precision and stable results across all measurement ranges.


The XT-2000 utilizes the same proprietary signal processing technology for nitrogen measurement. This technology, along with enhanced chemiluminescent detector design, provides extremely low background noise for trace nitrogen measurement of samples with diverse concentration using one single calibration.


Measurements start with the combustion of injected samples at high temperature (1050°C). For hydrocarbon species:  R-SH + R-NH + O2 → SO2 + CO2 + H2O

After removal of water (H2O), sulfur dioxide (SO2) is excited by the Excimer UV light emission, generating a secondary emission known as fluorescence which is proportional to total sulfur in the sample:  SO2 + hv → SO2* → SO2 + hv’

Nitrous Oxide (NO) produced during combustion is reacted with Ozone (O3) to generate a chemiluminescence emission which is proportional to total nitrogen in the sample:  NO + O3 → NO2 + O2 → NO2 + O2 + hv’

All XT-2000 laboratory analyzer systems include:

  • Standard desktop computer and intuitive software that is both user-friendly and highly configurable.
  • Various settings allow flexibility of method configuration and sample combinations that provide a maximum range of analysis.
  • Calibration menus provide an array of charts and tables that reflect analysis results that include statistical computations that analyze the quality of calibrations.
  • Calibrations can be updated without the need to re-run standards and with automatic reprocessing of analytical results.
  • Export and print features allow easy access to data for storage, archiving and processing.
  • Sample menus allow users to group samples where each sample may be run using a different method and calibration. This can facilitate analysis of sample groups by plant area or sample type and eliminate the need to set up groups for each calibration.
  • Software comes with a preloaded “Idle” method that automatically engages according to user-defined parameters thereby minimizing utility consumption when the analyzer is not in use.

For a complete range of oxygen monitoring options, please contact us.


Phone:  +1 713-947-9591

Fax:  +1 713-947-7549



Powerful, Real-Time Lab Analyzers for Total Sulfur – Nitrogen in Industrial Applications

Process Insights_ATOM XT Series 2000 Analyzer

Optional Modules

  • LAS-1000 Liquid Autosampler allows measurement of an extended range of liquids, gases and LPG products. The autosampler injects liquids and utilizes XYZ vectorized movement for sampling and injection for quick analysis. It is fully user-programmable to allow utilization of specified settings for intended samples. The direct screw drive Z-axis ensures the highest reliability throughout autosampler life.
  • EIM-1000 is designed for injection of gaseous and LPG samples using a micro-electric actuator, eliminating the need for supplemental carrier for sample valve operation. Injected samples are carried from the EIM-1000 to the analyzer using specialized tubing, enabling optimal analytical performance. The EIM-1000 is generally installed adjacent to the XT-2000 analyzer and configured directly through the computerized user interface.


  • Exceptional analytical performance
  • Highest dynamic range available
  • Stable and precise trace measurement
  • High reliability
  • Reduced footprint 
  • Versatile analyzer for liquids and gases
  • High detection sensitivity
  • Precise and stable results
  • User-friendly and intuitive
  • Easy calibration and method setup
  • Real-time monitoring of analysis
  • Calibration and sample recalculation feature
  • Multi-level user login
  • Idle mode operation
  • Full operation of external injection module and autosampler options


XTH-2000 with BIM 1000 “Boat Injection Module”

ATOM Instrument Laboratory Analyzer for Total Sulfur & Total Nitrogen


ATOM Instrument Sulfur in Gas Analyzer

Process Insights_ATOM SGA-1000 Analyzer


ATOM Instrument Sulfur in Liquid Analyzer

Process Insights_ATOM SGA-1000 Analyzer


ATOM Instrument Flare Gas Analyzer for Total Sulfur

Process Insights_ATOM SGA-1000 Analyzer


ATOM Instrument Liquid Autosampler

Process Insights_ATOM LAS-1000


ATOM Instrument External Injection Module


Trace S-1000

ATOM Instrument Analyzer for Trace Sulfur Measurement Applications

Process Insights_ATOM TraceS-1000 analyzer

Questions? We’re here to help.