Semi-permeable membrane preparation, dialysis and Tyndall effect experiment device

An experimental device and semi-permeable membrane technology, applied in the direction of semi-permeable membrane separation, dialysis, laboratory utensils, etc., can solve the problems of easy rupture of semi-permeable membrane, complicated experimental process, unraveling of thin lines, etc., and achieve convenient and fast experimental process. , The experimental process is simple and the thickness is uniform.

Pending Publication Date: 2020-08-14
林祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The experimental process is more complicated
[0006] The existing Tyndall effect experiment needs to pour the liquid in the semipermeable membrane after the dialysis experiment into a transparent container for laser irradiation. The pouring process takes a long time and the operation is cumbersome. Need to untie the thin thread before pouring, the experiment process is more complicated

Method used

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  • Semi-permeable membrane preparation, dialysis and Tyndall effect experiment device
  • Semi-permeable membrane preparation, dialysis and Tyndall effect experiment device
  • Semi-permeable membrane preparation, dialysis and Tyndall effect experiment device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, an experimental device for preparing a semipermeable membrane includes a cylinder 1 made of transparent material, a patch 2 with a smooth surface for blocking the bottom of the cylinder 1, and a patch 2 for ensuring that the bottom of the cylinder 1 is tightly sealed with the patch 2. compression device.

[0030] The patch 2 is cellophane, and the cellophane can completely cover the bottom surface of the cylinder body 1. The bottom of the cylinder body 1 is provided with a flanging 11, and the pressing device includes a magnetic ring 31 arranged above the flanging 11 and a magnetic ring 31. The suction plate 32 is arranged in a gap and attracts the magnetic ring 31 . The magnetic ring 31 surrounds the outer periphery of the cylinder body 1 . The suction plate 32 can completely cover the bottom surface of the cylinder body 1 .

[0031] The suction plate 32 is an iron plate, and the polarity of the opposite surface of the magnetic suction plate...

Embodiment 2

[0034] Such as figure 2 As shown, an experimental device for preparing a semipermeable membrane includes a cylinder 1 made of transparent material, a patch 2 with a smooth surface for blocking the bottom of the cylinder 1, and a patch 2 for ensuring that the bottom of the cylinder 1 is tightly sealed with the patch 2. compression device.

[0035] The patch 2 is a fresh-keeping film, and the fresh-keeping film can completely cover the bottom surface of the cylinder 1. The pressing device is a cover 33 matched with the cylinder 1, and the inner diameter of the cover 33 is equal to the outer diameter of the cylinder 1.

[0036] During the experiment, the experimenter completely covered the through hole at the bottom of the cylinder with plastic wrap, and then covered the bottom of the cylinder with the cover from bottom to top and pressed it tightly. At this time, the experimenter poured 4-6ml of collodion solution into the cylinder, and continuously rotated the cylinder, so th...

Embodiment 3

[0038] Such as image 3 As shown, an experimental device for preparing a semipermeable membrane includes a cylinder 1 made of transparent material, a patch 2 with a smooth surface for blocking the bottom of the cylinder 1, and a patch 2 for ensuring that the bottom of the cylinder 1 is tightly sealed with the patch 2. compression device.

[0039] The patch 2 is a glass sheet, and the glass sheet is a circular structure with a diameter larger than the inner diameter of the bottom surface of the cylinder 1 and smaller than the outer diameter of the bottom surface of the cylinder 1. The pressing device is a cover 33 that matches the cylinder 1. The inner diameter of the cover body 33 is equal to the outer diameter of the cylinder body 1 .

[0040] During the experiment, the experimenter completely covered the through hole at the bottom of the cylinder with the glass sheet, and then covered the bottom of the cylinder with the cover from bottom to top and pressed it tightly. At t...

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Abstract

The invention discloses a semi-permeable membrane preparation, dialysis and Tyndall effect experimental device, and relates to the field of experimental devices. The device comprises a barrel made ofa transparent material, a patch which is used for plugging the bottom surface of the barrel and has a smooth surface, and a pressing device which is used for ensuring that the bottom of the barrel istightly sealed with the patch. The patch is any one of glass paper, a preservative film, a glass sheet and a plastic sheet; the patch can completely cover the bottom surface of the barrel. A flange isarranged at the bottom of the barrel. The pressing device comprises a magnetic ring arranged above the flange and an attraction plate, wherein the attraction plate and the magnetic ring are arrangedin a spaced mode, the attraction plate and the magnetic ring attract each other, the magnetic ring is arranged on the periphery of the barrel in a surrounding mode, and the attraction plate can completely cover the bottom surface of the barrel. According to the experimental device, the problems in the background technology can be solved.

Description

technical field [0001] The invention relates to the field of experimental devices, in particular to an experimental device for semipermeable membrane preparation, dialysis and Tyndall effect. Background technique [0002] There are three experiments in the high school experiment, which are semi-permeable membrane preparation experiment, dialysis experiment and Tyndall effect experiment. [0003] The existing semipermeable membrane preparation experiment uses the collodion solution to prepare the semipermeable membrane. When preparing a semi-permeable membrane, it is necessary to add the collodion solution into a dry conical flask, tilt the conical flask and rotate continuously, so that the inner wall and mouth of the bottle are evenly coated with the collodion solution. Then pour out the excess collodion solution, and then leave it for about 1-2 minutes. When the hands are not sticky, the experimenter adds distilled water to dissolve the excess ether and ethanol through the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D61/24B01L9/00G09B23/22
CPCB01D61/243B01L9/00G09B23/22
Inventor 林祥柏佳富董文辉章孝班
Owner 林祥
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