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E-mail
detection_evm@163.com
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Phone
13671991901
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Address
5th Floor, No. 68 Zhongchuang Road, Songjiang District, Shanghai
Product Categories
- Aging tester
- Suma jar
- flow controller
- autosampler
- Tank cleaning device
- Dynamic Dilution Instrument (Gas Distribution Instrument)
- Atmospheric pre concentrator (liquid nitrogen refrigeration)
- Solid phase microextraction aging analyzer
- Multi functional sampling platform
- Automatic gas sampler
- Solid liquid integrated blowing and capturing instrument
- Fully automatic secondary thermal desorption instrument
Shanghai Hengxi Scientific Instrument Co., Ltd
Atmospheric pre concentrator
NegotiableUpdate on 01/17
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Overview
The Atmospheric Pre concentration System (abbreviated as VOCs) is an analytical instrument used for monitoring volatile organic compounds (VOCs) in ambient air. The system adopts a three-stage cold trap structure and uses multi-stage cold trap technology to achieve sample concentration and impurity separation, including liquid nitrogen refrigeration technology. The core components include a mass flow controller, an automatic sampler, and an inert material heating pipeline.
Product Details
The system should be able to comply with the "Determination of 65 volatile organic compounds in ambient air by tank sampling/gas chromatography-mass spectrometry" (HJ759-2023), "Determination of 8 sulfur-containing organic compounds including methyl mercaptan in fixed source exhaust gas by gas bag sampling pre concentration/gas chromatography-mass spectrometry" (HJ1078-2019), Monitoring Plan for Air Volatile Organic Compounds and (EPA) TO-15A The requirements for sample analysis pre-treatment and standard sample preparation in the document can be well applied to the detection of volatile organic compounds in the atmosphere.
