CN210322805U

CN210322805U - Paper chip device for rapidly detecting trace substances

Info

Publication number: CN210322805U
Application number: CN201821930532.5U
Authority: CN
Inventors: 付海燕; 胡鸥; 佘远斌
Original assignee: South Central University for Nationalities
Current assignee: South Central Minzu University
Priority date: 2018-11-22
Filing date: 2018-11-22
Publication date: 2020-04-14
Anticipated expiration: 2028-11-22

Abstract

The utility model relates to a paper chip sensing field especially relates to a paper chip device for short-term test trace material. The utility model discloses a paper chip device for short-term test trace material includes the paper chip body more than two and is used for concentrating the paper support of fixed paper chip body, the paper chip body is fixed on the paper support through hydrophobic viscidity colloid. Compare with the structure of traditional paper chip, the utility model discloses a paper chip body more than two holds in the palm with the paper that is used for concentrating fixed paper chip body, and the paper chip body is fixed on the paper holds in the palm through hydrophobic viscidity colloid, can not only realize the on-the-spot instrument short-term test of exempting from, and low cost can realize using on a large scale moreover.

Description

Paper chip device for rapidly detecting trace substances

Technical Field

The utility model relates to a paper chip sensing field especially relates to a paper chip device for short-term test trace material.

Background

Most of instruments used for detecting harmful substances in a traditional food and medicine analysis system are large-scale high-precision analytical instruments, such as gas chromatography, liquid chromatography, ion chromatography and mass spectrum combination, chemiluminescence immunoassay, capillary electrophoresis, biosensor methods and the like. The methods have some defects in different degrees and cannot be widely applied to field detection, for example, the chromatography and the mass spectrum combined sample pretreatment are complicated, the sample analysis time is long, the operation is complicated, and the method is only suitable for large laboratories or detection departments; although the biosensor method can detect harmful substances quickly and accurately, the specificity requirement is high. And most of the methods need to be operated by professional personnel, cannot go deep into the public, and meet the requirements of convenience, simplicity and field detection.

The paper chip is an analysis technology for applying sample preparation and detection to paper by using modern chemical and physical methods, and is widely applied to a plurality of fields of medical diagnosis, food safety, environmental monitoring and the like due to the characteristics of simple manufacture, low cost, degradability, good chemical property, good biocompatibility and the like. The technology simultaneously solves the application bottleneck of instrument-free detection in areas with underdeveloped economic technology and on site. The processing technologies commonly adopted by the paper chip manufacturing technology include plasma processing, ink-jet printing, wax-jet printing and the like, and the methods have the defects of long preparation time, complex operation, high cost, insufficient portability and the like, so that the application of the methods is limited to a certain extent. Therefore, there is a need to develop a paper chip for fast detection of food and drug safety in field, which is simple in preparation and operation, economical and small in volume.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims at providing a paper chip device for short-term test trace material can not only realize the instrument short-term test exempting from in the scene, and low cost can realize using on a large scale moreover.

In order to achieve the above object, the utility model provides a paper chip device for short-term test trace material includes more than two paper chip bodies and is used for concentrating the paper that fixes the paper chip body and hold in the palm, the paper chip body is fixed on the paper holds in the palm through hydrophobic viscidity colloid.

Preferably, the hydrophobic adhesive colloid is a double-sided adhesive tape.

Preferably, the adjacent paper chip bodies are spaced by 1-2 cm, and the adjacent paper chip bodies are spaced by double-sided adhesive tape.

Preferably, the paper chip body is circular filter paper with the diameter of 4-10 mm.

The utility model has the advantages that: compare with the structure of traditional paper chip, the utility model discloses a paper chip body more than two holds in the palm with the paper that is used for concentrating fixed paper chip body, and the paper chip body is fixed on the paper holds in the palm through hydrophobic viscidity colloid, can not only realize the on-the-spot instrument short-term test of exempting from, and low cost can realize using on a large scale moreover.

Drawings

Fig. 1 is a schematic structural view of the present invention;

the components in the figures are numbered as follows: the water-repellent adhesive comprises a paper chip body 1, a hydrophobic adhesive colloid 2 and a paper holder 3.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention as illustrated in the accompanying drawings and specific examples.

For solving current paper chip and have the problem that the structure is complicated, with high costs, the utility model provides a paper chip device for short-term test trace material, it through hydrophobic viscidity colloid with paper chip body fix on the paper holds in the palm can. Hereinafter, preferred embodiments of the paper chip device for rapid detection of trace substances according to the present invention will be described in detail with reference to specific examples.

Examples

Referring to fig. 1, the paper chip device for rapidly detecting trace substances of the present invention includes a paper holder 3, four double-sided tapes 2, and sixteen paper chip bodies 1. The paper support 3 is a hard paperboard, the paper chip body 1 is circular filter paper with the diameter of 5mm, detection base liquid is fixedly absorbed on the paper chip body 1, the detection base liquid can react with a substance to be detected with high sensitivity and selectivity, and color change response appears.

The four double-sided adhesive tapes 2 are parallel to each other and are sequentially arranged from top to bottom along the paper support 3. One side of each double faced adhesive tape 2 is fixed with paper support 3, four paper chip bodies 1 are fixed on the other side in a sticking manner, the interval between the four paper chip bodies 1 is 1.5cm, adjacent paper chip bodies 1 are separated through the double faced adhesive tape, because the double faced adhesive tape 2 has double-sided adhesive performance, the paper chip bodies 1 can be fixed on the paper support 3, and the double faced adhesive tape 2 has hydrophobicity, on one hand, the hydrophobicity separates the paper chip bodies 1 from the paper support 3, the solution dripped on the paper chip bodies 1 is prevented from being impregnated on the paper support 3, on the other hand, the hydrophobicity separates the adjacent paper chip bodies 1, and the solution dripped on the paper chip bodies 1 is prevented from being impregnated on the adjacent paper chip bodies 1.

Adopt wax spraying to print the paper chip device of preparation with the tradition and compare, the utility model has the advantages of have:

(1) the cost is low, and the material used by the utility model is cheap transparent double-faced adhesive and common quantitative filter paper.

(2) Simple structure, the utility model discloses a double faced adhesive tape can fix the paper chip body on the paper holds in the palm.

(3) The paper chip body can be prepared on a large scale, the laser cutting machine can rapidly cut a large number of paper chip bodies, and the paper chip body can be adhered only in a few minutes.

(4) The paper chip body is attached to the paper support, and is small in size, light in weight and convenient to carry.

(5) The operation is simple, the operation process only needs to carry out the body reaction of the liquid drop to be detected on the paper chip, and the detection result can be known by comparing the liquid drop to be detected with a standard colorimetric card.

(6) The method is rapid, instrument-free on-site detection is realized, color response change can be seen immediately or within 5 minutes when the liquid drop to be detected is on the paper chip, and the method can be used for detecting one or more samples to be detected.

The above-mentioned embodiments only represent one embodiment of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A paper chip device for rapidly detecting trace substances is characterized by comprising more than two paper chip bodies (1) and a paper support (3) for intensively fixing the paper chip bodies (1), wherein the paper chip bodies (1) are fixed on the paper support (3) through hydrophobic adhesive colloids (2);

the hydrophobic viscous colloid (2) is a double-sided adhesive tape;

the interval between the adjacent paper chip bodies (1) is 1-2 cm, and the adjacent paper chip bodies (1) are separated by a double-sided adhesive tape;

the paper chip body (1) is circular filter paper with the diameter of 4-10 mm.