Solid phase microextraction device of echinoid fiber balls

Abstract

The invention discloses a solid phase microextraction device of echinoid fiber balls. A handle is arranged at the upper part of a housing; a timer is embedded into the housing; a switch is arranged on an outer wall of the housing; the bottom of the housing is fixedly connected with a ring baffle; a motor is arranged on the ring baffle; the motor and the timer are connected with the switch by leads; an output end of the motor is connected with a vertical rod by a coupler; a horizontal sleeve is arranged at the bottom end of the vertical rod; a through hole is formed in the horizontal sleeve; the two ends of the horizontal sleeve are respectively connected with horizontal rods in an inserted manner; through holes are formed in the horizontal rods; the horizontal sleeve is connected with the horizontal rods by bolts; one end of each horizontal rod is connected in the sleeve in an inserted manner; the other ends of the horizontal rods are respectively fixedly connected with the fiber balls; and stirring needles are fixedly connected on outer walls of the fiber balls. According to the solid phase microextraction device, an analysis period can be shortened; the fiber balls rotate to accelerate stirring and a solution is stirred, so that reaching of a balance rate between two phases is accelerated; the time is saved; service lives of the fiber balls are prolonged; concentration of a sample can be uniform and stable; more precise data can be obtained; the adsorption, extraction and enrichment capacity is improved; a flux is increased; and the solid phase microextraction device is small in size and portable.

Description

technical field [0001] The invention relates to a solid-phase microextraction device. Background technique [0002] The traditional fiber-tip solid-phase microextraction technology utilizes quartz fibers coated with different chromatographic stationary phases or adsorbents to be inserted into the sample matrix to be tested for adsorption extraction. However, the sample matrix is ​​not fully utilized, it does not have a stirring function, and manual auxiliary stirring is required. The determination of heterogeneous samples cannot ensure uniform and stable sample concentration, and the surface area of ​​the fiber head probe is small, which cannot guarantee the enrichment of the extraction. The determination is accurate The degree of accuracy cannot be guaranteed; the original technology consumes manpower and material resources and increases the cost of use. Contents of the invention [0003] The purpose of the present invention is to provide a sea urchin type that increases...

AI Technical Summary

Problems solved by technology

However, the sample matrix is ​​not fully utilized, it does not have a stirring function, and manual auxiliary stirring is required. The determination of heterogeneous samples cannot ensure uniform and stable sample concentration, and the surface area of ​​the fiber head probe is small, which cannot guarantee the enrichment of the extraction. The determination is accurate The accuracy cannot be guaranteed; the original technology consumes manpower and material resources, increasing the cost of use

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