Introduction: The cryogenic pretreatment system adopts electric refrigeration technology, and the refrigeration temperature can reach below -100 °C. Under deep cooling conditions, the sample is physically dehydrated, and the water removal efficiency can reach over 99%, effectively solving the relative humidity change of the sample. The influence of the detection results and the influence of water vapor on the peak drift of the sample, the qualitative results are more accurate; under the deep cooling conditions, the enrichment efficiency of low carbon and organic solvent samples (alcohol, ketone, ester, etc.) can be effectively improved. 50 times or more under normal temperature conditions. The VOCs online analyzer uses the temperature-programmed chromatographic separation technique and the hydrogen flame ionization detector (FID) technology to carry out the separation and analysis of the sample. The sample gas is dehydrated, enriched and concentrated by the cryogenic pretreatment module, and then passed through a direct hot type. Attached, is quickly sent to the analytical instrument, and the separated VOCs components are once entered into the FID detector for detection, and accurate qualitative and quantitative analysis results of each single component are obtained. Features: 1. Ultra-low temperature electric refrigeration technology to remove water from the sample depth and solve the influence of water vapor on the column; 2. Low-temperature sample trapping solves the problem of low enrichment efficiency and large difference of low-carbon and solvent-based VOCs at room temperature, and improves sample enrichment efficiency; 3. The split injection technique solves the problem of peak tailing and peak broadening caused by large-capacity sampling and thermal analysis, and the system qualitative and quantitative analysis results are more accurate; 4. Direct heating heating technology heats up quickly (>40 °C / s), the analysis is rapid and thorough, can avoid the peak broadening introduced by thermal desorption, so that the chromatogram 5. Separation effect is better, qualitative and quantitative and accurate; 6. Using compound seasoning technology, there are more types of sample collection, and more samples are detected in a single analysis. Technical Parameters: Detection capability: See the list of VOCs monitoring factors for details. Range: (0~300) ppb Power supply: <1000VA, 220V AC/50Hz Working environment: Temperature: (5~35) °C, humidity: (20%~90%) RH Output: 4~20mA, RS232/RS485, Ethernet Size: 19" standard chassis
Introduction: The cryogenic pretreatment system adopts electric refrigeration technology, and the refrigeration temperature can reach below -100 °C. Under deep cooling conditions, the sample is physically dehydrated, and the water removal efficiency can reach over 99%, effectively solving the relative humidity change of the sample. The influence of the detection results and the influence of water vapor on the peak drift of the sample, the qualitative results are more accurate; under the deep cooling conditions, the enrichment efficiency of low carbon and organic solvent samples (alcohol, ketone, ester, etc.) can be effectively improved. 50 times or more under normal temperature conditions. The VOCs online analyzer uses the temperature-programmed chromatographic separation technique and the hydrogen flame ionization detector (FID) technology to carry out the separation and analysis of the sample. The sample gas is dehydrated, enriched and concentrated by the cryogenic pretreatment module, and then passed through a direct hot type. Attached, is quickly sent to the analytical instrument, and the separated VOCs components are once entered into the FID detector for detection, and accurate qualitative and quantitative analysis results of each single component are obtained.
