CN1433044A - Micro grating for transmissive electron microscope and its making process - Google Patents
Micro grating for transmissive electron microscope and its making process Download PDFInfo
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- CN1433044A CN1433044A CN 03105357 CN03105357A CN1433044A CN 1433044 A CN1433044 A CN 1433044A CN 03105357 CN03105357 CN 03105357 CN 03105357 A CN03105357 A CN 03105357A CN 1433044 A CN1433044 A CN 1433044A
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- acetone
- electron microscope
- film
- collodion
- copper mesh
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Abstract
The present invention relates to a micro grating for transmissive electronic microscope and its making process and aims at simplifying its production process, raising production efficiency and heat stability. In the technological scheme, the micro grating is made with acetone, n-pentyl acetate and collodion. The production process includes mixing n-pentyl acetate and collodion and adding acetone to prepare mixed liquid; dropping one drop of the mixed liquid to culture dish and covering the liquid surface with copper net; spreading filter paper on the film formed on the liquid surface and lifting the filter paper with the copper net and film; cutting the film and setting fil mwith copper net into the sample chamber of transmissive electronic microscope; and applying high voltage to the microscope to form the micro grating.
Description
One, technical field:
The present invention relates to a kind of Micro grating for transmissive electron microscope and preparation method thereof, it belongs to little grid that a kind of transmission electron microscope uses and preparation method thereof.
Two, background technology:
Astigmatism be the electron microscope endoporus circle, up and down pole shoe axial offset, make around the irregular and pole shoe bore of the material material of pole shoe reason such as local pollution and cause.This nonrotary symmetry in lens magnetic field can make its focusing power in different directions difference occur, can not be focused into a bit on as the plane after making imaging object point scioptics, directly influences the resolution of electron microscope.In order to solve this difficult point, people work out little grid to solve the astigmatism problem of electron microscope.As little grid of " Electron Microscopy " (the luxuriant male work P55 page or leaf of [Japan] sakata) record is exactly wherein a kind of.This little grid are made with collodion.Its manufacture method is: put into water earlier in the container of producing the collodion supporting film, floating all around have ice cube, the metallic plate submerged, is placed with sheet glass on the plate, is placed with wire netting on sheet glass; Then 10% collodion is splashed into one, drop launches at the water surface at once, breathes out without a break on the drop surface after several minutes, and about mistake just can be pulled wire netting and film out after two minutes together, drying, and little grid are promptly made in the processing of burning at last.Though this little grid can solve the astigmatism problem of electron microscope, there is make complicated, production efficiency is low and poor heat stability and shortcoming such as yielding.
Three, summary of the invention:
The objective of the invention is to solve low and poor heat stability of making complexity, production efficiency that existing little grid exist and yielding technological difficulties and provide a kind of makings simply, production efficiency is high and Heat stability is good and on-deformable Micro grating for transmissive electron microscope and preparation method thereof.
For realizing above-mentioned task, the technical solution used in the present invention is: this Micro grating for transmissive electron microscope, and it is made by acetone, n-amyl acetate and collodion, and its percentage by weight is:
Acetone 1～5% n-amyl acetate 39～60% collodions 38～60%.
The production method of above-mentioned Micro grating for transmissive electron microscope is: it comprises the following steps:
1) at first is 39～60% n-amyl acetate and 38～60% collodion mixed preparing with percentage by weight, be that 1～5% acetone adds in the above-mentioned mixed liquor then with percentage by weight, and make it even, make the mixed liquor of n-amyl acetate, collodion and acetone;
2) in the culture dish of distilled water is housed, the mixed liquor of the n-amyl acetate, collodion and the acetone that prepare is splashed into one, be that the copper mesh of 3mm is put down gently on the liquid level of mixed liquor at once with diameter;
3) after several minutes after forming thin film on the liquid level of culture dish, be pressed into gently in the water on it with filter paper is smooth, leave the water together with copper mesh and film subsequently;
4) carefully film is severed along the copper mesh edge, the film that makes the film that contains copper mesh separate and will contain copper mesh with filter paper is then put into the sample room of transmission electron microscope;
5) add the high pressure of 150KV to transmission electron microscope, make acetone promptly from film evaporation form the micropore hole and promptly make Micro grating for transmissive electron microscope.
Because the present invention adopted technique scheme, therefore compare with background technology, have make simple, production efficiency is high and Heat stability is good and advantage such as not yielding.Product percent of pass of the present invention can reach more than 98%, and is higher more than 20% than the qualification rate of background technology.
Four, embodiment:
Embodiment 1:
Micro grating for transmissive electron microscope in the present embodiment, it is made by acetone, n-amyl acetate and collodion, and its percentage by weight is:
Acetone 1% n-amyl acetate 39% collodion 60%.
The production method of above-mentioned Micro grating for transmissive electron microscope is: it comprises the following steps:
1) at first is 39% n-amyl acetate and 60% collodion mixed preparing, is that 1% acetone adds in the above-mentioned mixed liquor then with percentage by weight, and makes it even, make the mixed liquor of n-amyl acetate, collodion and acetone percentage by weight;
2) in the culture dish of distilled water is housed, the mixed liquor of the n-amyl acetate, collodion and the acetone that prepare is splashed into one, be that the copper mesh of 3mm is put down gently on the liquid level of mixed liquor at once with diameter;
3) after 3 minutes after forming thin film on the liquid level of culture dish, be pressed into gently in the water on it with filter paper is smooth, leave the water together with copper mesh and film subsequently;
4) carefully film is severed along the copper mesh edge, the film that makes the film that contains copper mesh separate and will contain copper mesh with filter paper is then put into the sample room of transmission electron microscope;
5) add the high pressure of 150KV to transmission electron microscope, make acetone promptly from film evaporation form the micropore hole and promptly make Micro grating for transmissive electron microscope.
Embodiment 2:
Micro grating for transmissive electron microscope in the present embodiment, it is made by acetone, n-amyl acetate and collodion, and its percentage by weight is:
Acetone 5% n-amyl acetate 55% collodion 40%.
The production method of above-mentioned Micro grating for transmissive electron microscope is: it comprises the following steps:
1) at first is 55% n-amyl acetate and 40% collodion mixed preparing, is that 5% acetone adds in the above-mentioned mixed liquor then with percentage by weight, and makes it even, make the mixed liquor of n-amyl acetate, collodion and acetone percentage by weight;
2) in the culture dish of distilled water is housed, the mixed liquor of the n-amyl acetate, collodion and the acetone that prepare is splashed into one, be that the copper mesh of 3mm is put down gently on the liquid level of mixed liquor at once with diameter;
3) after 2 minutes after forming thin film on the liquid level of culture dish, be pressed into gently in the water on it with filter paper is smooth, leave the water together with copper mesh and film subsequently;
4) carefully film is severed along the copper mesh edge, the film that makes the film that contains copper mesh separate and will contain copper mesh with filter paper is then put into the sample room of transmission electron microscope;
5) add the high pressure of 150KV to transmission electron microscope, make acetone promptly from film evaporation form the micropore hole and promptly make Micro grating for transmissive electron microscope.
Embodiment 3:
Micro grating for transmissive electron microscope in the present embodiment, it is made by acetone, n-amyl acetate and collodion, and its percentage by weight is:
Acetone 2% n-amyl acetate 60% collodion 38%.
The production method of above-mentioned Micro grating for transmissive electron microscope is: it comprises the following steps:
1) at first is 60% n-amyl acetate and 38% collodion mixed preparing, is that 2% acetone adds in the above-mentioned mixed liquor then with percentage by weight, and makes it even, make the mixed liquor of n-amyl acetate, collodion and acetone percentage by weight;
2) in the culture dish of distilled water is housed, the mixed liquor of the n-amyl acetate, collodion and the acetone that prepare is splashed into one, be that the copper mesh of 3mm is put down gently on the liquid level of mixed liquor at once with diameter;
3) after 4 minutes after forming thin film on the liquid level of culture dish, be pressed into gently in the water on it with filter paper is smooth, leave the water together with copper mesh and film subsequently;
4) carefully film is severed along the copper mesh edge, the film that makes the film that contains copper mesh separate and will contain copper mesh with filter paper is then put into the sample room of transmission electron microscope;
5) add the high pressure of 150KV to transmission electron microscope, make acetone promptly from film evaporation form the micropore hole and promptly make Micro grating for transmissive electron microscope.
Embodiment 4:
Micro grating for transmissive electron microscope in the present embodiment, it is made by acetone, n-amyl acetate and collodion, and its percentage by weight is:
Acetone 3% n-amyl acetate 50% collodion 47%.
The production method of above-mentioned Micro grating for transmissive electron microscope is: it comprises the following steps:
1) at first is 50% n-amyl acetate and 47% collodion mixed preparing, is that 3% acetone adds in the above-mentioned mixed liquor then with percentage by weight, and makes it even, make the mixed liquor of n-amyl acetate, collodion and acetone percentage by weight;
2) in the culture dish of distilled water is housed, the mixed liquor of the n-amyl acetate, collodion and the acetone that prepare is splashed into one, be that the copper mesh of 3mm is put down gently on the liquid level of mixed liquor at once with diameter;
3) after 2 minutes after forming thin film on the liquid level of culture dish, be pressed into gently in the water on it with filter paper is smooth, leave the water together with copper mesh and film subsequently;
4) carefully film is severed along the copper mesh edge, the film that makes the film that contains copper mesh separate and will contain copper mesh with filter paper is then put into the sample room of transmission electron microscope;
5) add the high pressure of 150KV to transmission electron microscope, make acetone promptly from film evaporation form the micropore hole and promptly make Micro grating for transmissive electron microscope.
Embodiment 5:
Micro grating for transmissive electron microscope in the present embodiment, it is made by acetone, n-amyl acetate and collodion, and its percentage by weight is:
Acetone 4% n-amyl acetate 45% collodion 51%.
The production method of above-mentioned Micro grating for transmissive electron microscope is: it comprises the following steps:
1) at first is 45% n-amyl acetate and 51% collodion mixed preparing, is that 4% acetone adds in the above-mentioned mixed liquor then with percentage by weight, and makes it even, make the mixed liquor of n-amyl acetate, collodion and acetone percentage by weight;
2) in the culture dish of distilled water is housed, the mixed liquor of the n-amyl acetate, collodion and the acetone that prepare is splashed into one, be that the copper mesh of 3mm is put down gently on the liquid level of mixed liquor at once with diameter;
3) after 3 minutes after forming thin film on the liquid level of culture dish, be pressed into gently in the water on it with filter paper is smooth, leave the water together with copper mesh and film subsequently;
4) carefully film is severed along the copper mesh edge, the film that makes the film that contains copper mesh separate and will contain copper mesh with filter paper is then put into the sample room of transmission electron microscope;
5) add the high pressure of 150KV to transmission electron microscope, make acetone promptly from film evaporation form the micropore hole and promptly make Micro grating for transmissive electron microscope.
Claims (2)
1, a kind of Micro grating for transmissive electron microscope is characterized in that: it is made by acetone, n-amyl acetate and collodion, and its percentage by weight is:
Acetone 1～5% n-amyl acetate 39～60% collodions 38～60%.
2, a kind of production method for preparing the described Micro grating for transmissive electron microscope of claim 1, it is characterized in that: it comprises the following steps:
1) at first is 39～60% n-amyl acetate and 38～60% collodion mixed preparing with percentage by weight, be that 1～5% acetone adds in the above-mentioned mixed liquor then with percentage by weight, and make it even, make the mixed liquor of n-amyl acetate, collodion and acetone;
2) in the culture dish of distilled water is housed, the mixed liquor of the n-amyl acetate, collodion and the acetone that prepare is splashed into one, be that the copper mesh of 3mm is put down gently on the liquid level of mixed liquor at once with diameter;
3) after several minutes after forming thin film on the liquid level of culture dish, be pressed into gently in the water on it with filter paper is smooth, leave the water together with copper mesh and film subsequently;
4) carefully film is severed along the copper mesh edge, the film that makes the film that contains copper mesh separate and will contain copper mesh with filter paper is then put into the sample room of transmission electron microscope;
5) add the high pressure of 150KV to transmission electron microscope, make acetone promptly from film evaporation form the micropore hole and promptly make Micro grating for transmissive electron microscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03105357 CN1206697C (en) | 2003-02-26 | 2003-02-26 | Micro grating for transmissive electron microscope and its making process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 03105357 CN1206697C (en) | 2003-02-26 | 2003-02-26 | Micro grating for transmissive electron microscope and its making process |
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| CN1433044A true CN1433044A (en) | 2003-07-30 |
| CN1206697C CN1206697C (en) | 2005-06-15 |
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| CN 03105357 Expired - Fee Related CN1206697C (en) | 2003-02-26 | 2003-02-26 | Micro grating for transmissive electron microscope and its making process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609771B (en) * | 2008-06-20 | 2010-12-08 | 清华大学 | Method for preparing transmission electron microscope micro-grids |
| CN102194623A (en) * | 2010-03-17 | 2011-09-21 | 清华大学 | Preparation method of transmission electron microscope microgrid |
| CN102315058A (en) * | 2010-07-07 | 2012-01-11 | 清华大学 | Transmission electron microscope microgrid and preparation method thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8294098B2 (en) | 2007-03-30 | 2012-10-23 | Tsinghua University | Transmission electron microscope micro-grid |
| CN101276724B (en) * | 2007-03-30 | 2011-06-22 | 北京富纳特创新科技有限公司 | Transmission electron microscope micro grid and preparing method thereof |
| TWI400738B (en) * | 2009-08-31 | 2013-07-01 | Hon Hai Prec Ind Co Ltd | Transmission electron microscope grid |
-
2003
- 2003-02-26 CN CN 03105357 patent/CN1206697C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609771B (en) * | 2008-06-20 | 2010-12-08 | 清华大学 | Method for preparing transmission electron microscope micro-grids |
| CN102194623A (en) * | 2010-03-17 | 2011-09-21 | 清华大学 | Preparation method of transmission electron microscope microgrid |
| CN102194623B (en) * | 2010-03-17 | 2013-11-20 | 清华大学 | Preparation method of transmission electron microscope microgrid |
| CN102315058A (en) * | 2010-07-07 | 2012-01-11 | 清华大学 | Transmission electron microscope microgrid and preparation method thereof |
| CN102315058B (en) * | 2010-07-07 | 2013-12-11 | 清华大学 | Transmission electron microscope microgrid and preparation method thereof |
| US8623227B2 (en) | 2010-07-07 | 2014-01-07 | Tsinghua University | Transmission electron microscope grid and method for making same |
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| Publication number | Publication date |
|---|---|
| CN1206697C (en) | 2005-06-15 |
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| C14 | Grant of patent or utility model | ||
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Owner name: NORTH UNIVERSITY NORTH UNIVERSITY Free format text: FORMER OWNER: LI QIAOLING Effective date: 20060324 |
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Effective date of registration: 20060324 Address after: 030051 No. 1, Xueyuan Road, Shanxi, Taiyuan Zhongbei Univ Patentee after: Zhongbei Univ Address before: 030051 Department of chemical engineering, North China Institute of technology, Xueyuan Road 1, Taiyuan, Shanxi Patentee before: Li Qiaoling |
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Granted publication date: 20050615 |