Method for praparing varek specimen

Abstract

The invention discloses a method for praparing varek specimen, including steps of specimen washing, specimen immersing, specimen paper sleeve lining and specimen drying in turns, the specimen immersing step is immersing the specimen into immersion in natural state, the specimen paper sleeve lining step is holding the specimen out of the immersion and lining the specimen onto specimen paper in natural state, in one of the steps before the specimen drying step, the specimen is covered with plastic film, the specimen drying step is padding 6 to 10 pieces of absorbent paper under the specimen paper and using a sample slip to clamp for drying, and in the first three days drying the absorbent paper shoule be replaced once a day, and after the three days drying the absorbent paper should be replaced once for every two to five days. The invention is a method for praparing varek specimen of little specimen damage, good specimen surface gloss and tight cementation between the specimen and the specimen paper, and the method also reduces labor intensity of specimen prepartion.

Description

technical field [0001] The invention relates to the preparation of plant specimens, in particular to a preparation method of seaweed specimens. Background technique [0002] In seawater, in order to protect the complete individual structure of seaweed and normal life activities, the cell wall of seaweed is composed of two layers, the inner layer near the cell membrane is the cellulose skeleton layer, and the outer layer is the colloidal layer, which has the function of isolation and protection. effect. For example, the gelatinous layer of green algae is composed of pectin; the gelatinous layer of brown algae is composed of alginate, which also contains lutein, carotene and chlorophyll; the gelatinous layer of red algae is mainly composed of polysaccharides (agar, karaage) Glue) and pectin and other macromolecular substances. Under certain conditions, colloids can be dissolved in water and become colloidal. After dehydration and fixation, colloids can adhere to other solid ...

AI Technical Summary

Problems solved by technology

Because seaweed has colloid, part of the colloid will flow out with the water during the drying process. The drying of the current seaweed specimen preparation method is to cover the surface of the seaweed with gauze and absorbent paper for dehydration, so that most of the water in the seaweed flows out from the surface of the specimen. The moisture on the specimen paper surface is less, so the colloid also flows out from the specimen surface. The colloid is sticky. When the specimen is dry, the gauze and absorbent paper need to be replaced frequently. It often causes damage to the specimen, and the surface of the prepared specimen will also stick to the gauze fiber, and the surface of the specimen after being pressed and dried by the gauze is darker, lacks gloss, and the appearance of the specimen is not natural enough; while the specimen paper surface flows out There is less moisture in the specimen paper, so there is less glue attached to the specimen paper, so the adhesion between the specimen and the specimen paper is not firm, and the dried specimen is easy to fall off from the specimen paper. In practical applications, it is also necessary to separate the specimen from the specimen paper. The paper is stitched together, which not only increases the labor intensity, but also causes damage to the specimen during the stitching process

In the current seaweed specimen preparation method, because the specimen paper is immersed in the soaking solution, the replacement frequency of the gauze and the absorbent paper is relatively fast, the replacement times are relatively large, and the labor intensity is relatively strong.