Total Organic Carbon (TOC) Analyzers are used to measure organic carbon in water. TOC analysis includes three discrete steps: 1) Acidification of the sample to remove inorganic carbonaceous material and pursuable organic carbon (methane). 2) Oxidation of the organic matter in the sample (typically via persulfate in a heated quartz tube) into CO2. 3) Detection of the CO2 (typically by non-dispersive IR). High purity air, oxygen or Nitrogen is used to carry the CO2 from the oxidation process to the detector, and its purity is a critical issue in the optimization of the sensitivity and operating range of the system. The gas must be free of CO, CO2, and hydrocarbons (i.e. compressor oils), and is typically supplied to the analyzer at a pressure of 80 to 100 psi/g and at a flow rate of 400 to 800 mL/min to provide a broad operating range.

A Parker Balston TOC Gas Generator can produce carrier/combustion gas, from and existing compressed air supply, for TOC instruments eliminating the need to purchase expensive, inconvenient, high pressure cylinders of air, nitrogen, or oxygen. The Parker Balston TOC Gas Generator utilizes catalytic oxidation and pressure swing adsorption technologies to remove hydrocarbons to 0.05 ppm (measured as methane), CO2 to 1 ppm, water vapor to 1 ppm, and CO to 1 ppm.


Ensures consistent, reliable, TOC operation and reduces instrument service and maintenance costs
Purity meets or exceed all TOC manufacturer’s gas purity requirements
Compact design frees up valuable laboratory floor space
Completely automatic – plug it in and forget about it

Gas Generator

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