CN210543745U

CN210543745U - Sample purification device for drug residue analysis

Info

Publication number: CN210543745U
Application number: CN201921401721.8U
Authority: CN
Inventors: 张洁; 赵琳
Original assignee: Henan Huaren Health Technology Co Ltd
Current assignee: Henan Huaren Health Technology Co Ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-05-19
Anticipated expiration: 2029-08-27

Abstract

The utility model relates to a drug residue is sample purifier for analysis, including the syringe barrel and with syringe barrel complex piston assembly, piston assembly includes piston and piston push rod, syringe barrel bottom has the syringe tube head of play liquid, the inside filtration that is provided with of syringe barrel, and filtration includes along first sieve, adsorption material and the second sieve that syringe barrel port set gradually to syringe tube head direction. The syringe barrel and the piston assembly are stored separately, liquid to be treated is poured into the syringe barrel from the port of the syringe barrel during use, the piston is stuffed into the syringe barrel to extrude the liquid to be treated, the liquid passes through the filtering structure, impurities are remained in the syringe barrel, the purified liquid flows out and is stored in a new storage tube, the whole process has fewer steps and is simple to operate, time and labor are saved, and the working efficiency is greatly improved.

Description

Sample purification device for drug residue analysis

Technical Field

The utility model relates to a drug residue analytical equipment field, concretely relates to sample purification device for drug residue analysis.

Background

Pesticide residues in fruits and vegetables, veterinary drug residues in animal-derived foods, and mycotoxins in grains are important detection targets for the above foods. Currently, it is necessary to transfer the drug residues into the extract solution during sample preparation, remove impurities in the extract solution through purification, and then perform measurement. And generally adopt the filter screen manual filtration when purifying the extract that contains the medicine residue among the prior art, and the extract that treats processing and purified extract generally all are deposited in the centrifuging tube, and whole manual filterable in-process operation is complicated, and wastes time and energy, and detection efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sample purifier is used in drug residue analysis to treat among the solution prior art and operate complicated, the inefficiency problem in the extract purification process that contains pesticide residue.

In order to achieve the above object, the utility model discloses a drug residue is sample purification device for analysis adopts following technical scheme: a sample purification device for drug residue analysis: including syringe barrel and with syringe barrel complex piston assembly, piston assembly includes piston and piston push rod, syringe barrel bottom has the syringe tube head of play liquid, the inside filtration that is provided with of syringe barrel, filtration include along syringe barrel port to syringe tube head direction set gradually first sieve, adsorption material and second sieve, first sieve and the sealed cooperation of syringe barrel inner wall.

The filter structure is located at the bottom of the syringe barrel.

The utility model has the advantages that: the syringe barrel and the piston assembly are stored separately, liquid to be treated is poured into the syringe barrel from the port of the syringe barrel during use, the piston is stuffed into the syringe barrel to extrude the liquid to be treated, the liquid passes through the filtering structure, impurities are remained in the syringe barrel, the purified liquid flows out and is stored in a new storage tube, the whole process has fewer steps and is simple to operate, time and labor are saved, and the working efficiency is greatly improved.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a sample purification apparatus for drug residue analysis according to the present invention;

fig. 2 is a reference diagram showing a state of use of the sample purification apparatus for drug residue analysis in fig. 1.

Detailed Description

The utility model discloses an embodiment of a sample purifier for drug residue analysis, as shown in fig. 1-2, syringe barrel 1 and with syringe barrel 1 complex piston assembly, piston assembly includes piston 3 and piston push rod 2. The bottom of the syringe barrel 1 is provided with a syringe tube head 7 for discharging liquid, the inside of the syringe barrel 1 is provided with a filtering structure, and the filtering structure comprises a first sieve plate 6, an adsorbing material 5 and a second sieve plate 4 which are sequentially arranged along the port 9 of the syringe barrel towards the direction of the syringe tube head 7. All sealed cooperation between first sieve 6, second sieve 4 and the syringe barrel inner wall guarantees that the liquid of pending is whole to enter into the adsorption material through first sieve and flows out through the second sieve. The filter structure is located at the bottom of the syringe barrel 1.

The two of syringe barrel 1 and piston assembly are deposited alone, pour pending liquid into syringe barrel 1 during the use, fill in piston 3 in the syringe barrel and extrude pending liquid, liquid is through filtration, and impurity is stayed in the syringe barrel, and the liquid after the purification flows out, deposits in new deposit pipe, and whole process step is few, easy operation, and labour saving and time saving has improved work efficiency greatly. In the process of pouring liquid into the syringe barrel, because the aperture of the sieve pores of the sieve plate is fine, and the particles of the adsorbing material 5 are smaller and are generally made of nano materials, the liquid to be treated can not flow out through the syringe head under the condition of no external force, or a small amount of liquid drops, and at the moment, a storage tube can be firstly placed below the syringe barrel before the liquid is poured. The utility model discloses pack the piston into the syringe barrel and push down the in-process, form one section sealed air column 8 between piston and the extract of pending, can be complete release the extract in the syringe barrel under the effect of this sealed air column.

Claims

1. The utility model provides a sample purifier for drug residue analysis which characterized in that: including syringe barrel and with syringe barrel complex piston assembly, piston assembly includes piston and piston push rod, syringe barrel bottom has the syringe tube head of play liquid, the inside filtration that is provided with of syringe barrel, filtration include along syringe barrel port to syringe tube head direction first sieve, adsorption material and the second sieve that sets gradually.

2. The sample purification apparatus for drug residue analysis according to claim 1, wherein: the filter structure is located at the bottom of the syringe barrel.