Samples that contain salt present a challenge for TOC analysis. Salt, even in low concentration in typical seawater (3 – 4 %) can cause devitrification of a quartz combustion tube operating at high temperature. Additionally, salt can coat the surface of the catalyst and prevent the catalytic conversion of organic compounds to carbon dioxide. Eventually, salt crystallization in the system will require increased maintenance. Numerous schemes have been employed on TOC systems to deal with salt. These range from elaborate salt traps, ceramic combustion tubes, special kits, and the use of sulfuric acid. These approaches add to the cost of the system, and in the case of sulfuric acid, may lead to poisoning of the catalyst.

Join John Welsh, PhD on Thursday, July 26th at 1 PM (CDT) to discuss the approach taken with the new combustion technology OI Analytical recently introduced that eliminates the need for special kits, the use of potentially detrimental acids, and expensive combustion tubes. Data will be presented that shows the long-term stability of the system, the increased longevity of the catalyst, and the decrease in the amount of maintenance needed. A live Q&A will follow the webinar.
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Register for the live webinar, and you’ll learn:

  • Current challenges of running high-salt TOC samples
  • Problems associated with believed “fixes” for high-salt analysis
  • A new TOC approach providing catalyst longevity & decreased maintenance 
A New Approach to High Salt Samples & TOC Analysis
Thursday, July 26, 2018
11:00 AM PDT; 1:00 PM CDT; 2:00 PM EDT