CN210251319U - Portable magnetic solid phase extraction device - Google Patents

Abstract

The utility model discloses a portable magnetic solid phase extraction device, which comprises a contact reaction chamber, a solid-liquid separation chamber and a first circulating pump, the second circulating pump, third circulating pump and elution device, the contact reaction chamber is hourglass hopper-shaped, the bottom and the solid-liquid separation room of contact reaction chamber are linked together, separate mutually through the stop valve between the two, the upper portion of contact reaction chamber is equipped with the circulating water import, the lower part of contact reaction chamber is equipped with the circulating water export, circulating water import and circulating water export are linked together with first circulating pump through the pipeline respectively, solid-liquid separation chamber top-down is including being the solid-liquid separation district of inversion taper shape, magnetic material collecting vat and electromagnetic means, two sides of magnetic material collecting vat are equipped with entry and the export that remains the survey water respectively, this device is integrated processing apparatus, the simple operation, high durability and convenient carrying, the processing to the water sample and the extraction and the constant volume work of organic matter in the.

Description

Portable magnetic solid phase extraction device

Technical Field

The utility model relates to a solid phase extraction device especially relates to a portable magnetism solid phase extraction device, belongs to analysis and detection technical field.

Background

The solid phase extraction technology is to utilize solid adsorbent to adsorb target compound in liquid sample, separate the target compound from the matrix and interference compound of the sample, and then elute or heat desorb with eluent to reach the aim of separating and enriching the target compound. Solid phase extraction is increasingly widely used in laboratories as a pretreatment technique for samples. At present, the common solid phase extraction technology on the market is mainly realized by a small solid phase extraction column, and water passing adsorption is carried out by a water pump, so that the aim of solid phase extraction is fulfilled. However, the existing solid-phase extraction column needs to perform column processing on a target water sample to achieve the effect of enrichment and separation, and the operation has large reverse resistance, relatively complicated operation steps, slow enrichment time and other restrictive factors, which greatly restrict the application of the solid-phase extraction column in the fields of water purification and water organic substance enrichment. This makes conventional column solid phase extraction techniques difficult to implement in non-laboratory operating environments.

Compared with the traditional solid phase extraction column, the magnetic solid phase extraction technology taking the magnetic solid phase extracting agent (patent publication number: CN1034355733A) as the technical core greatly simplifies the operation process of water pretreatment, so that the enrichment and separation of large-volume water samples are quicker and more efficient, and the solid phase extraction cost is greatly reduced. However, commercially available magnetic material reactors in the existing market adopt a split design concept, are not easy to carry, and cannot perform rapid water body enrichment on site. Although the subsequent portable magnetic solid phase extraction device (patent publication No. CN106310711A) greatly improves the efficiency of on-site water body enrichment, the operation steps of transferring, collecting, eluting and the like of the magnetic material still make the on-site water body organic substance enrichment work cumbersome.

SUMMERY OF THE UTILITY MODEL

The utility model provides a portable magnetism solid phase extraction device to the not enough that present magnetic material reactor and magnetism solid phase extraction device exist at present.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

the utility model provides a portable magnetism solid phase extraction device, includes contact reaction room, solid-liquid separation room, first circulating pump, second circulating pump, third circulating pump and elution device, the contact reaction room is hourglass hopper-shaped, the bottom and the solid-liquid separation room of contact reaction room are linked together, separate mutually through the stop valve between the two, the upper portion of contact reaction room is equipped with the circulating water import, the lower part of contact reaction room is equipped with the circulating water export, circulating water import and circulating water export are linked together with first circulating pump through the pipeline respectively, solid-liquid separation room top-down is including being the solid-liquid separation district of the shape of the inverted cone, magnetic material collecting vat and electromagnetic means, two sides of magnetic material collecting vat are equipped with the entry and the export that wait to examine water respectively, the entry and the exit of waiting to examine water are equipped with entry sieve and export sieve respectively, entry sieve and export sieve are the micropore, the device comprises a solid-liquid separation chamber, a water outlet valve, a water outlet pipe, a water outlet valve, a branch pipe, a third circulating pump, a spray water inlet, a spray pipe, a plurality of water spray heads, an elution device and a plurality of eluent liquid storage tanks, wherein the outlet of the water to be measured is also provided with the water outlet valve, the inlet of the water to be measured is communicated with a second circulating pump through a pipeline, the bottom of the solid-liquid separation chamber is provided with an eluent outlet, the pipeline between the water outlet valve and the water outlet valve of the water to be measured is provided with the branch pipe, the branch pipe is provided with the third circulating pump, the third circulating pump is communicated with the spray water.

The utility model has the advantages that:

1) the existence of the microporous sieve plates at the inlet and the outlet of the water to be detected not only preliminarily treats the water sample, but also reduces the loss of the solid-phase magnetic material and increases the accuracy of water sample analysis;

2) after the device is used, the adsorbed solid-phase magnetic material can be quickly and conveniently eluted and desorbed, so that the solid-phase magnetic material can be recycled, and the cost is reduced;

3) the device is an integrated treatment device, is convenient to operate and carry, and can finish the treatment of a water sample, the extraction of organic matters in a water body and the constant volume work in a one-stop mode.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, a heating device or an ultrasonic device is arranged on the outer wall of the magnetic material collecting tank.

The further technical scheme has the beneficial effects that the desorption process of the solid-phase magnetic material can be assisted, so that the solid-phase magnetic material is more completely desorbed.

Furthermore, a stop valve is connected on a liquid outlet pipeline of the eluent liquid storage tank.

The further technical scheme has the beneficial effect that the elution process of the solid-phase magnetic material can be well controlled.

Further, a stop valve is arranged at the eluent outlet.

The beneficial effect of adopting above-mentioned further technical scheme is that, close at the hybrid adsorption process of the water sample of awaiting measuring and solid phase magnetic material, open the discharge eluent after the elution desorption process of solid phase magnetic material is accomplished, and then help extraction device to realize the function of adsorbing, eluting different stages.

Furthermore, 6-12 water spraying heads are uniformly distributed on the spraying pipe.

The technical scheme has the advantages that the solid-phase magnetic material adhered to the inner wall of the contact reaction chamber can be uniformly washed and enters water, so that the solid-phase magnetic material can better play a role

Further, the elution device comprises 2 eluent liquid storage tanks.

The further technical scheme has the beneficial effects that the pressure and the dosage of the eluent can be better controlled, so that the elution process of the solid-phase magnetic material is more complete and thorough.

Drawings

FIG. 1 is a schematic view of the structure of the device of the present invention;

in FIG. 1, a contact reaction chamber; 2. a solid-liquid separation chamber; 3. a first circulation pump; 4. a second circulation pump; 5. a third circulation pump; 6. an elution device; 7. a circulating water inlet; 8. a circulating water outlet; 9. a solid-liquid separation zone; 10. a magnetic material collection tank; 11. an electromagnetic device; 12. an inlet screen deck; 13. an outlet sieve plate; 14. a water outlet valve; 15. an eluent outlet; 16. a drain valve; 17. a spray water inlet; 18. a shower pipe; 19. an eluent liquid storage tank; 20. and a stop valve.

Detailed Description

The principles and features of the present invention are described below in conjunction with examples, which are set forth only to illustrate the present invention and are not intended to limit the scope of the present invention.

A portable magnetic solid phase extraction device is shown in figure 1, and comprises a contact reaction chamber 1, a solid-liquid separation chamber 2, a first circulating pump 3, a second circulating pump 4, a third circulating pump 5 and an elution device 6, wherein the contact reaction chamber is funnel-shaped, the bottom of the contact reaction chamber is communicated with the solid-liquid separation chamber, the contact reaction chamber and the solid-liquid separation chamber are separated by a stop valve 20, the upper part of the contact reaction chamber is provided with a circulating water inlet 7, the lower part of the contact reaction chamber is provided with a circulating water outlet 8, the circulating water inlet and the circulating water outlet are respectively communicated with the first circulating pump through pipelines, the solid-liquid separation chamber comprises an inverted conical solid-liquid separation zone, a magnetic material collecting tank and an electromagnetic device from top to bottom, the outer wall of the magnetic material collecting tank is provided with a heating device or an ultrasonic device, the two side surfaces of the magnetic material collecting tank, the inlet sieve plate and the outlet sieve plate are both micropore sieve plates, the outlet of the water to be measured is also provided with a water outlet valve 14, the inlet of the water to be measured is communicated with the second circulating pump through a pipeline, the water outlet valve of the water to be measured is communicated with a drain valve 16 through a pipeline, the bottom of the solid-liquid separation chamber is provided with an eluent outlet 15, be equipped with stop valve 20 on the pipeline that is linked together with the eluent outlet, be equipped with a branch road on the pipeline between the outlet valve of waiting to survey water and the drain valve, be equipped with the third circulating pump on the branch road, the third circulating pump is linked together with spray water inlet 17 on contact reaction room upper portion, the upper portion of contact reaction room is equipped with the shower 18 around the inner wall, the equipartition has a plurality of sprinkler heads on the shower, elution device includes two eluent stock solutions 19, the eluent stock solution pond is linked together through the upper portion of liquid pipeline with solid-liquid separation room, also is connected with stop valve 20 on the liquid outlet pipeline of eluent stock solution pond.

The utility model discloses a portable magnetism solid phase extraction device's working process as follows:

before use, firstly, putting the magnetic solid-phase material into a contact reaction chamber, and storing the magnetic solid-phase material in a magnetic material collecting tank; then inserting a water delivery pipe of a water inlet to be treated into a water sample to be treated, closing a water outlet valve, allowing the water sample to be treated to enter a solid-liquid separation chamber under the action of a second circulating pump, allowing the water to be treated to enter a contact reaction chamber with a solid-phase magnetic material, closing a stop valve and the second circulating pump between the contact reaction chamber and the solid-liquid separation chamber after the water level rises above a circulating water inlet of the contact reaction chamber, setting various parameters of a first circulating pump such as working time, drainage time and the like at the moment respectively, starting a power supply, starting the first circulating pump to work, allowing a mixed solution to pass through the circulating water inlet, the contact reaction chamber and a circulating water outlet, and achieving a self-circulation effect, so that the magnetic material and the water sample; after the process is finished, closing the first circulating pump, opening a stop valve between the contact reaction chamber and the solid-liquid separation chamber, and opening a power supply of the electromagnetic device, so that the solid-phase magnetic extraction material is quickly separated from the water phase; meanwhile, the water outlet valve and the drain valve are opened, so that the purified water sample can be discharged; in the drainage process, a third circulating pump is started, so that part of purified water enters a spraying port, a small part of solid-phase magnetic extraction material adhered to the inner wall of the contact reaction chamber is washed off, after water in the device is discharged, a drain valve is closed, a heating device or an ultrasonic device on the outer wall of a magnetic material collecting tank is opened, and the desorption process and the cleaning process of the solid-phase magnetic material are completed by using an organic solvent in an eluent liquid storage tank; and finally, opening an eluent outlet, collecting and fixing the volume of the desorbed organic solvent for subsequent analysis and detection, thereby completing the extraction process of the organic matters in the water body.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (7)

1. A portable magnetic solid phase extraction device is characterized in that: the device comprises a contact reaction chamber, a solid-liquid separation chamber, a first circulating pump, a second circulating pump, a third circulating pump and an elution device, wherein the contact reaction chamber is funnel-shaped, the bottom of the contact reaction chamber is communicated with the solid-liquid separation chamber, the contact reaction chamber and the solid-liquid separation chamber are separated by a stop valve, the upper part of the contact reaction chamber is provided with a circulating water inlet, the lower part of the contact reaction chamber is provided with a circulating water outlet, the circulating water inlet and the circulating water outlet are respectively communicated with the first circulating pump through pipelines, the solid-liquid separation chamber comprises a solid-liquid separation zone in an inverted conical shape, a magnetic material collecting tank and an electromagnetic device from top to bottom, two side surfaces of the magnetic material collecting tank are respectively provided with an inlet and an outlet of water to be measured, the inlet and the outlet of the water to be measured, the device comprises a solid-liquid separation chamber, a water outlet valve, a water outlet pipe, a branch pipe, a third circulating pump, a spray water inlet, a spray pipe, a plurality of water spray heads, an elution device and a plurality of eluent liquid storage tanks, wherein the outlet of water to be measured is also provided with the water outlet valve, the inlet of the water to be measured is communicated with a second circulating pump through a pipeline, the water outlet valve of the water to be measured is communicated with a water discharge valve through a pipeline, the bottom of the solid-liquid separation chamber is provided with an eluent outlet, the pipeline between the water outlet valve of the water to be measured and the water discharge valve is provided with a branch pipe, the branch pipe is provided with the third circulating pump, the third circulating pump is communicated with the spray water inlet on the upper part of.

2. The portable magnetic solid phase extraction apparatus of claim 1, wherein a heating device or an ultrasonic device is disposed on an outer wall of the magnetic material collecting tank.

3. The portable magnetic solid phase extraction device of claim 1 or 2, wherein a stop valve is connected to the liquid outlet pipeline of the eluent liquid storage tank.

4. The portable magnetic solid phase extraction device of claim 1 or 2, wherein a stop valve is provided at the eluent outlet.

5. The portable magnetic solid phase extraction device of claim 3, wherein 6-12 water spray heads are uniformly distributed on the spray pipe.

6. The portable magnetic solid phase extraction device of claim 4, wherein 6-12 water spray heads are uniformly distributed on the spray pipe.

7. The portable magnetic solid phase extraction device of claim 5 or 6, wherein the elution device comprises 2 eluent reservoirs.

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