Miniature extraction device based on hollow foam material and application thereof

[0062] Example 1

[0063] In this embodiment, the micro-extraction unit assembly is the structure design of the sandwich micro-extraction unit assembly, and the micro-extraction fluid inlet adopts a tubular micro-extraction fluid inlet. For details, see the attachment image 3 .

[0064] Such as image 3 As shown, the micro-extraction unit assembly is provided with three plate-type current collecting cavities 2, a fluid shunt sealing layer 3 and a fluid sealing barrier layer 4. The current collecting cavity 2 is formed by the fluid shunt sealing layer 3 and the fluid sealing barrier layer 4. The fluid intake ports 1 are respectively connected with the collecting cavity 2, and between adjacent collecting cavities 2 is the hollow foam micro-extraction functional area 5, forming a plate collecting cavity / hollow foam / plate collecting cavity / Sandwich type micro-extraction unit assembly of hollow foam / plate-type collecting cavity.

[0065] Example 2

[0066] The difference from Embodiment 1 is that in this embodiment, the micro-extraction unit assembly is a sandwich-type micro-extraction unit assembly structure, and the micro-extraction fluid inlet adopts a plate-shaped micro-extraction fluid inlet. For details, see the attachment Figure 4 .

[0067] Such as Figure 4 As shown, the micro-extraction unit assembly is provided with three plate-type current collecting cavities 2, a fluid shunt sealing layer 3 and a fluid sealing barrier layer 4. The current collecting cavity 2 is formed by the fluid shunt sealing layer 3 and the fluid sealing barrier layer 4. The fluid intake ports 1 are respectively connected with the collecting cavity 2, and between adjacent collecting cavities 2 is the hollow foam micro-extraction functional area 5, forming a plate collecting cavity / hollow foam / plate collecting cavity / Sandwich type micro-extraction unit assembly of hollow foam / plate-type collecting cavity.

[0068] Example 3

[0069] In this embodiment, the micro-extraction unit assembly is a structural design of a plate-type micro-extraction unit assembly, and the micro-extraction fluid inlet adopts a tubular micro-extraction fluid inlet. For details, see the attachment Figure 5 .

[0070] Such as Figure 5 As shown, the micro-extraction unit assembly is provided with two plate-type current collecting cavities 2, a fluid shunt sealing layer 3 and a fluid sealing barrier layer 4. The current collecting cavity 2 is formed by the fluid shunt sealing layer 3 and the fluid sealing barrier layer 4, The fluid inlets 1 are respectively connected with the collecting cavity 2, and between the two opposite collecting cavities 2 is the hollow foam micro-extraction functional area 5, forming a tubular micro-extraction fluid inlet / plate-type collecting cavity / Hollow foam / plate-type collecting cavity / tubular micro-extraction fluid inlet plate-type micro-extraction unit assembly.