A kind of purification method of quantum dot

A purification method and quantum dot technology, applied in the field of quantum dots, can solve the problems that agarose gel electrophoresis cannot be achieved, chloroform is separated, etc.

Active Publication Date: 2021-09-14
TCL CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a method for purifying quantum dots, which aims to solve the problem that the existing agarose gel electrophoresis cannot achieve the effect of only separating chloroform without affecting other components in the quantum dot solution The problem

Method used

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  • A kind of purification method of quantum dot

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Effect test

Embodiment 1

[0036] Purification method according to the present embodiment is a quantum dot, comprising the steps of:

[0037] 0.3 g agarose is weighed, placed in a flask, was added 30 ml 1 * Tris- borate (TBE) buffer solution and placed in the flask, the flask into a microwave oven and heated to dissolve the agarose. Was added 0.5 ml of concentrated aqueous ammonia, stirred for 1 hour to fully dissolve and uniformly mixed, cooled to 65 o About C, Serve 1% agarose gel solution amination.

[0038]Plexiglass groove taken, washed, dried; plexiglass was placed on a horizontal slot within the die, the baffle well, put the comb. Draw a small amount of amide sealing film edges agarose solution, and allowing to set the remaining solution was poured into warm agarose film of the glue slowly expanded, until a homogeneous paste layer over the entire surface of the plexiglass plate gel plate thickness 4mm. Allowed to stand at room temperature for about 30 min, to be solidified completely, plated plastic ...

Embodiment 2

[0041] Purification method according to the present embodiment is a quantum dot, comprising the steps of:

[0042] 0.9 g agarose is weighed, placed in a flask, was added 30 ml 1 * Tris- borate (TBE) buffer solution and placed in the flask, the flask into a microwave oven and heated to dissolve the agarose. Add 10 ml 1 mmol / l thiourea solution, stirred for 1 hour to fully dissolve and uniformly mixed, cooled to 65 o About C, Serve amination 3% agarose gel solution.

[0043] Plexiglass groove taken, washed, dried; plexiglass was placed on a horizontal slot within the die, the baffle well, put the comb. Draw a small amount of liquid amination agarose gel sealing film edges, allowing to set the remaining warmed amination agarose gel was poured in the film, so that the glue slowly expand until the entire plexiglass plate forming a uniform surface layer, the gel sheet thickness between 3 mm. Allowed to stand at room temperature for about 30 min, to be solidified completely, plated pla...

Embodiment 3

[0046] Purification method according to the present embodiment is a quantum dot, comprising the steps of:

[0047] He said 3 g of agarose was placed in the flask, was added 30 ml 1 * Tris- acetate (TAE) buffer solution, was placed in the flask, the flask into a microwave oven and heated to dissolve the agarose. Add 10 ml 10 mmol / l APTES solution, stirred for 1 hour to fully dissolve and uniformly mixed, cooled to 65 o About C, 10% amination Serve agarose gel solution.

[0048] Plexiglass groove taken, washed, dried; plexiglass was placed on a horizontal slot within the die, the baffle well, put the comb. Draw a small amount of liquid amination agarose gel sealing film edges, allowing to set the remaining warmed amination agarose gel was poured in the film, so that the glue slowly expand until the entire plexiglass plate forming a uniform surface layer, the gel sheet thickness between 5 mm. Allowed to stand at room temperature for about 30 min, to be solidified completely, plated...

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Abstract

The invention discloses a method for purifying quantum dots, comprising the steps of: providing a quantum dot solution, the quantum dot solution includes quantum dots and chloroform; providing a gel plate, the gel plate includes agarose gel and dispersed in the Amino-containing compounds in the agarose gel; the quantum dot solution is applied to the gel plate, power supply is provided, and a voltage is provided to the gel plate, so that chloroform is approached on the gel plate Electrophoresis occurs at one end of the positive pole of the power supply; at the end of the gel plate close to the negative pole of the power supply, purified quantum dots are separated and obtained. The invention disperses the amino group-containing compound in the agarose gel. The amino group has a positive charge and has an attractive effect on the chloroform, which can accelerate the moving speed of the chloroform, thereby realizing the separation of the chloroform. The method is easy to operate, simple and fast, and can remove chloroform impurities in the quantum dot solution.

Description

Technical field [0001] The present invention relates to a quantum dot, and in particular relates to a method for the purification of quantum dots. Background technique [0002] After the last pass in the quantum dot washed with chloroform to wash down the solids transfer in the vial, and the vial placed in a vacuum oven after chloroform was evaporated to dryness to give a powder quantum dots, and then using a suitable solvent (typically n-octyl dioxane or hexane) was dissolved to obtain a solution of quantum dots, the quantum dot solution composed of a large number of n-octane solvent + + small amount of the quantum dot surface ligands (e.g., thiol, oleylamine, oleic acid) + a small amount of chloroform. Wherein as chloroform can not evaporate completely, and remains in the quantum dot solution, vials corrode plastic caps; purity and a large impact properties of the quantum dots have a quantum dot product; the device will make the device surface corrosion , causes the device life...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D57/02
CPCB01D57/02
Inventor 霍蕊芦子哲
Owner TCL CORPORATION
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