Combined intelligent detecting system with large-capacity environmental chamber and GC-MS (gas chromatography-mass spectrometer)

Abstract

The invention discloses a combined intelligent detecting system with a large-capacity environmental chamber and a GC-MS (gas chromatography-mass spectrometer), and relates to a detecting system for volatile matters of furniture. The combined intelligent detecting system comprises the large-capacity environmental test chamber, an air sampling system and the GC-MS. A method implemented by the combined intelligent detecting system includes automatically and periodically acquiring air samples in the environmental chamber under the condition that a service environment of a furniture product is truly imitated; automatically injecting the air samples acquired in various periods into the GC-MS according to a set sample sequence; analyzing and storing effective data by the GC-MS according to an analytical method conditions; and qualitatively and quantitatively analyzing VOC (volatile organic compounds) in the samples via retention time of each component and peak area response values to complete detection of the types and the volatilization quantities of the VOC in unit furniture. By the aid of the combined intelligent detecting system, informative, reliable and reasonable data are provided for scientifically evaluating the volatilization quantities and volatilization characteristics of toxic and harmful pollutants in products such as the set furniture.

Description

Technical field [0001] The invention relates to a detection system for furniture volatiles, in particular to a large-volume environmental cabin / GC-MS combined intelligent detection system. Background technique [0002] Indoor air pollution has become the third largest pollution after coal smoke pollution and petrochemical pollution, and it is increasingly endangering human health and survival. Having a safe and healthy home environment has become a hot spot of public concern. Volatile organic compounds such as formaldehyde and VOC released from wooden furniture and decoration materials are the main sources of indoor environmental pollution, which cannot be ignored in the quality of furniture. [0003] In the current national and industry standards, the detection of formaldehyde volatilization in furniture is only for man-made panels, not the finished furniture used by consumers; the drying method is used in the detection method, which is only one part of the complete set of furni...

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Problems solved by technology

However, for the large-volume environmental test chamber (the minimum requirement in ASTM E1333 is 22m3), there is still no finalized product in China. Although many scientific research institutions and enterprises have conducted research on large-volume environmental test chambers, there are still shortcomings: at the same time At present, there is no mature detection system that uses a large-volume environmental chamber to detect volatile organic compounds in complete sets of furniture.

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