Online pretreatment method and online pretreatment device of SVOCs (Semi Volatile Organic Compounds) in water
A water sample and inlet technology, which is applied in the field of online pretreatment of SVOCs in water, can solve the problems of short service life of extraction fibers, difficulty in realizing online, and low sample enrichment efficiency, so as to improve adsorption capacity and enrichment multiple, and avoid competition Adsorption effect
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[0058] The invention discloses an on-line pretreatment method and device for SVOCs in water. The on-line pulse extraction technology is adopted, and the water sample cycle is used for contact adsorption with a fixed extraction rod, which avoids the competition of the sample on the surface of the stirrer in the fiber solid phase microextraction. Adsorption, and avoid the collision of the extraction rod with the container, and prolong the service life. The device of the present invention realizes the processes of fully automatic sampling, sample preparation, adsorption enrichment and analysis, and flow path self-cleaning, can realize continuous and uninterrupted pretreatment of SVOCs in water samples, and is very suitable for online pretreatment of SVOCs in water.
[0059] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obvious...
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