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Stock code
002658

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  • AQMS-900VI/VII Ambient air non-methane total hydrocarbon online monitoring system

    AQMS-900VI/VII ambient air/factory boundary NMHC online monitoring system relies on Belgian ORTHODYNE S.A. chromatography technology. Snowdiron independently developed the MODEL 6000 industrial gas chromatograph. It adopts two technical routes: direct method and differential subtraction method to automatically monitor ambient air. The concentration of non-methane total hydrocarbons, benzene, toluene, xylene, halogenated hydrocarbons and other gas components can meet the different application needs of customers.

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  • AQMS-900VCM Ambient air volatile organic compound continuous monitoring system

    AQMS-900VCM ambient air VOCs online monitoring system realizes automatic online monitoring of 116 VOCs components in ambient air through dual chromatography column design and gas chromatography mass spectrometry technology. The system complies with the "Technical Requirements for Ambient Air Volatile Organic Compounds Gas Chromatography Continuous Monitoring System" and Detection Methods" (HJ1010-2018) and the Ministry of Ecology and Environment\'s 2019 Monitoring Plan for Volatile Organic Compounds in Urban Ambient Air at Prefecture Level and Above (Monitoring Letter [2019] No. 11) and other relevant standards and specifications.

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  • AQMS-900VC Ambient air VOCs online monitoring system

    The AQMS-900VC ambient air VOCs online monitoring system adopts GC-FID technology. The online gas chromatography analyzer introduces Belgian ORTHODYNE S.A. technology, which can continuously monitor the concentration of organic pollutant components such as ozone precursors in the ambient air.

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  • AQMS-900VF Ambient air formaldehyde continuous automatic monitoring system

    AQMS-900VF ambient air formaldehyde continuous automatic monitoring system was jointly developed and designed by Snow Dragon and the School of Environmental Science and Engineering of Peking University. The system is based on the basic principles of "Air Quality Formaldehyde Determination Acetylacetone Spectrophotometry" (GB/T15516-1995) , and combined with the Hantzsch fluorescence method to achieve continuous monitoring of formaldehyde in indoor and outdoor ambient air or exhaust gas.

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  • PTR-TOF Proton Transfer Reaction Time of Flight Mass Spectrometer

    The PTR-TOF proton transfer time-of-flight mass spectrometer is an emerging technology that can achieve online detection of trace amounts of volatile organic compounds and semi-volatile organic compounds (VOCs/SVOCs) by combining a proton transfer ion source and a time-of-flight mass spectrometer. It can be used at It can qualitatively and quantitatively quantify pptv-level VOCs/SVOCs within seconds. It has the advantages of fast response, no need for pre-processing, high sensitivity and low detection limit.

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