Analytical Instrumentation

  • Accurate Determination of Nitrogen, Sulfur and Chloride at Trace Level  

Accurate Determination of Nitrogen, Sulfur and Chloride at Trace Level  

Nov 20 2019 Read 354 Times

Aromatic Hydrocarbons and Related Chemicals need to be ultra-pure and free of undesired compounds such as Nitrogen, Sulfur, and Chloride. The presence of these compounds may contribute to emissions, be harmful to catalytic processes, and leads to corrosion. Petrochemical companies monitor these elements in process feeds and finished products to determine whether their refining process optimisation measures are effective. The finished Aromatic Products generally have specification limits at trace level (ppb). Elemental combustion analysis followed by Chemiluminescence, UV-Fluorescence, or Microcoulometric detection is the only suitable technique for determination of ultra-low Nitrogen, Sulfur, and Chloride concentrations.

The XPLORER Series elemental combustion analysers are recognised as a premium solution to accurately analyze the amount of Total Nitrogen (TN), Total Sulfur (TS), and Total Chloride (TX) in petrochemical matrices. The XPLORER Series fully comply with the ASTM D7183 (TN), ASTM D7184 (TS), ASTM D5808 (TX), and ASTM D7457 (TX), for the analysis of Aromatic Hydrocarbons and Related Chemicals. The XPLORER Series cover a broad analytical scope, ranging from low ppb to high ppm concentrations. International refining companies select the XPLORER Series as trusted solution to carry out these challenging applications.

The tables (see slideshow) demonstrate high sensitivity of the XPLORER Series, even at concentrations below the scope of the above mentioned international test methods. All samples were introduced by the ARCHIE liquids autosampler using a sample volume of 100 µL. Calibration lines were created by auto-dilution of stock standards and provide linear regressions (r2) >0.999. Subsequently, all reported relative standard deviations (RSD) are well below the acceptable repeatability limits (r).

Please visit our website to find out more about these powerful multi-matrix analysers!

Reader comments

Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.

Post a Comment

Digital Edition

Petro Industry News Buyers Guide 2020

January 2020

In This Edition Fuel For Thought - Successful JASIS sees Tanaka announce appointment of new general manager - USA appointments underpin Signal Group growth plan - Leading European sensor tr...

View all digital editions


International Petroleum Week

Feb 25 2020 London, UK


Feb 25 2020 Lagos, Nigeria

SIAF Guangzhou

Feb 26 2020 Guanghzou, China


Feb 26 2020 Targi Kielce, Poland

View all events