Main application

As a pre-treatment device for gas chromatography and chromatography-mass spectrometry systems. 系统的前处理装 置。 It is suitable for environmental monitoring stations, indoor environment, third-party testing organizations, scientific research institutions, semiconductor, new energy, biomedicine and related enterprises to collect volatile organic compounds in gas samples and process the pre-concentration processing system. quot;>Working Conditions

Power supply: AC 220V±10%, 50Hz.

Working temperature: 0~50℃.

Relative humidity: ≤95%.

Operating Principle

Sampling canister (Suma canister) in the automatic canister cleaner support to get clean and be pumped into a vacuum state; transported to the sampling site after instant sampling or supporting constant flow sampling device for constant flow sampling; the use of qualified gas bags to collect the gas of the fixed pollution sources in the high-precision static dilution instrument to achieve the required qualified samples; samples in the autosampler under the automatic transfer to preconcentration instrument; pre-concentration instrument three-stage cold trap process can be effective Eliminate the interference of CO2, O2, H2O, N2, etc. in the air to eliminate impurities after concentration and focusing treatment, to maximize the qualification of the target volatile organic compounds to be measured, and automatically transferred to the gas chromatography or gas chromatography to analyze the results. Before analyzing the samples, the pre-concentrator needs a high-precision static diluter to dilute the high concentration of standard gas into a low concentration of standard gas to make the standard curve for analysis.

Technical Performance and Requirements