Total hydrocarbons TOC infrared gas sensor

SILAREX - TOCFor the infrared gas detection module, non dispersive infrared detection technology NDIR is used, which can simultaneously detect up to 3 different ranges of carbon dioxide gas. Each range has its own accuracy, making it an ideal choice for single component and multi-component gas detection applications. The module optical structure design is simple, using a sturdy and durable mechanical structure, easy integration, and signal digital processing implemented by a microprocessor. And integrate temperature and pressure compensation sensors to effectively compensate for detection interference signals, achieving high-precision and high stability detection.

Total organic carbon (TOC) is the amount of carbon in organic compounds, which is often used as a non-specific indicator of water quality or the cleanliness of pharmaceutical production equipment. TOC is a fast and accurate method for assessing potential pollution in wastewater, which will replace traditional but lengthy methods such as biochemical oxygen demand (BOD) and chemical oxygen demand (COD) testing.

With the continuous construction and operation of high parameter and large capacity thermal power generation units in China, higher requirements have been put forward for the quality of water and steam in boilers, among which the control of TOC has become an important indicator.

The Non Dispersive Infrared Analysis (NDIR) method provides a feasible anti-interference approach for detecting CO2 in TOC analysis. The main advantage of using NDIR is that it directly and accurately measures the CO2 produced by the oxidation of organic carbon in the oxidation reactor, without relying on the measurement of secondary correction effects, such as the measurement method used in conductivity measurement.

NDIR detectors use flow chamber technology, where oxides continuously flow into and out of the detector. Usually, a CO2 specific infrared absorption peak of around 4.26 µ m (2350cm-1) is used, and the gas absorption of this absorption peak is measured by a detector. When gas continues to flow into and out of the detection unit, the accumulated value of the test results will form a peak by integrating and calculating the overall CO2 concentration value in the sample.

Gas detection and range:

Carbon dioxide CO2