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sem細菌樣品制備步驟

發布時間:2020-11-02 18:21:33

1、如何制備SEM樣品的橫斷面

你可以試試對樣品掰彎處理,因為氧化鋁模板是脆性的,所以在掰彎的時候肯定有地方裂開,裂開往上翹的角度大的在平面SEM中就可以側向看到斷面,我用過這個方法,還算是比較有效的方法

2、聚合物薄膜材料,觀察其斷截面,怎麼樣制備SEM樣品?說詳細點

我這邊做一般採取如下兩種方案:
1.用手術刀片切,然後貼在電鏡檯子上;
2。快速冷凍,然後粉碎,分散在導電膠帶上。

3、掃描電鏡樣品制備過程中的「噴金」用英語應該怎麼說?

Conctive Coating
是塗導電塗料那一步吧,下面是英文的Wiki百科。。找的好苦啊。。。

Conctive Coating – An ultrathin coating of electrically-concting material, deposited either by high vacuum evaporation or by low vacuum sputter coating of the sample. This is done to prevent the accumulation of static electric fields at the specimen e to the electron irradiation required ring imaging. Such coatings include gold, gold/palladium, platinum, tungsten, graphite etc. and are especially important for the study of specimens with the scanning electron microscope. Another reason for coating, even when there is more than enough conctivity, is to improve contrast, a situation more common with the operation of a FESEM (field emission SEM). When an osmium coater is used, a layer far thinner than would be possible with any of the previously mentioned sputtered coatings is possible.[12]

4、如何制備SEM樣品的橫斷面

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