Adsorption and analysis device of headspace sample
A sample adsorption and analysis device technology, applied in measurement devices, analytical materials, instruments, etc., can solve the problems of poor detection limit, poor reproducibility of analysis results, low detection limit and high sensitivity, and achieve low detection limit. , Short extraction time, good reproducibility
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[0014] See figure 1 , The headspace sample adsorption and analysis device of this embodiment includes a sample bottle 1, an outer needle 3 containing a carrier gas hole 2 inserted into the sample bottle at one end, and a double needle 6 of an inner needle 5 containing a gas outlet hole 4 in the outer needle, The first end is connected with the carrier gas source and the second end is connected with the outer needle inlet and the carrier gas hole of the first carrier gas pipe 7, the first end is connected with the inner needle outlet hole of the first connecting pipe 8, including an inlet 9, an outlet 10 and The adsorption tube 12 containing the adsorbent at the adsorption and analysis inlet and outlet 11, the second connecting pipe 13 whose first end is connected to the outlet of the adsorption tube, the first end is the adsorption and analysis pipeline 14 connected with the adsorption and analysis inlet and outlet of the adsorption tube, the first end The second carrier gas pip...
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