脱水

虫の標本Wikiでは酸性化の後に行う。 一般的にはもう少し後の工程で行なわれるが、 虫の標本Wikiでは次に行う脱ロウで水分が無い方が良い(方法が違うためか?)。

方法

検体は浸漬皿にあるものとする。

(1) 前の処理で使用した薬液を️排液する。

(2) 容器のフタなどについた薬液をティッシュペーパー等で拭う。

(3) 脱水剤を0.5mLぐらい加えて常温で5分ぐらい静置する。

(4) 脱水剤️排液する。

(5) 脱水剤を0.5mLぐらい加えて常温で5分ぐらい静置する。

調査

文献に書かれている情報。 どの文献でもだいたい同じような感じ。

6. Decant bleach or stain and twice rinse specimens in Glacial Acetic Acid* or 95% Ethanol.
7. Final dehydration of specimens may be carried out by soaking in Glacial Acetic Acid* or Absolute Ethanol for a few minutes. Decant dehydration fluid.

* The choice between Glacial Acetic Acid and alcohols, is influenced by economic and safety factors. Glacial Acetic Acid has the advantage of being a cheap means of neutralising alkalis and vigorously dehydrating material, and provides the acid medium necessary for staining; it has the disadvantages of its unpleasant, breath-catching smell and ability to cause skin burns. Whilst 95% industrial Ethanol (IMS) is cheap when it can be readily obtained, Absolute (100%) Ethanol is extremely expensive, and both are more pleasant to work with than Acetic Acid. Ethanol is extremely hygroscopic, however, and many workers prefer 100% iso-propanol, which is not. Iso-propyl alcohol is, thus, a better choice for dehydration in humid environments, as well being cheaper than Absolute Ethanol. (P. Brown, E. Boise, 2006, pp.16)

参考文献

Brown, P. & Boise, E. (2006) Procedures for preparation and conservation …,

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