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我们都知道,生物陈列标本的制作与保存,在研究机关、学校、博物馆和展览会里都具有极其重大的意义。关于制作浸制标本时,封标本瓶口的材料和方法,在国内外的参考书上只有一些零星的记载。通常在实验室里多用凡士林来封浸制标本瓶口,这种作法比较简便,却不牢固。如果保存时间较久一些,容易粘附一层浮土,根本不适合作永久标本封口的要求。有时为了克服这一缺点,在瓶口外边包一层胶布条,经久由于胶布粘性失效,既易张脱,也不雅观。以石蠟一份,混松香二份,或以黄蠟混松香封瓶口也是比较常用的方法之一;可是由于它的粘性较小,性质较脆,塗薄了贴不牢,塗厚了易崩脱,同时由于它与标本瓶的色调不一致,陈列起来也很难看。用液体玻璃50份、白陶土50份和氧化锌10份调制成湖状物,搓成细条封瓶口是比较牢固一些的材料,但乾的慢,至少需1个月,在未乾透前若瓶中液体触及瓶口,则易起混溷。还有的用桐油石灰调合成油膩封标本瓶口,除乾的慢外,如资料差一点,也不容易封牢。
We all know that the production and preservation of biological specimens are extremely important in research institutes, schools, museums and exhibitions. On the production of dipped specimens, the closure of the bottle of materials and methods, in reference books at home and abroad only some sporadic records. Vaseline is usually used in the laboratory to seal the specimen bottle, which is simple and not solid. If the preservation of a longer time, easy to adhere to a layer of soil, is not suitable for permanent specimen sealing requirements. Sometimes in order to overcome this shortcoming, a layer of tape is wrapped around the mouth of the bottle to prolong the adhesive tape’s failure. To a paraffin, mixed rosin, or yellow wax mixed rosin closure bottle is one of the more common method; but because of its smaller viscosity, the nature of more fragile, thin paste the stick is not strong, thick coating easy Collapse, at the same time as it is inconsistent with the color of the specimen bottle, the display is very ugly. 50 parts of liquid glass, 50 parts of kaolin and 10 parts of zinc oxide into a lake-like objects, rubbing into a thin seal bottle mouth is a more solid material, but the dry slow, at least 1 month before the dry If the bottle of liquid touches the bottle, it is easy to start mixing. There is also mixed with tung oil lime into the sealed bottle of oily, except for the slow, such as the data is almost, it is not easy sealed.