The biological microscope is one of the commonly used equipment in the laboratory. How to better maintain the biological microscope and extend the life of the biological microscope. The following is the relevant information compiled by you.
1. The biological microscope should be placed in a dry and clean room to avoid mold of optical components, rust of metal parts and dust. After using the microscope, put it back into the box (cabinet), or cover it with a glass cover or plastic cover, and put in the dry operating agent.
2. Do not disassemble the components by yourself; the eyepiece tube should be inserted with an eyepiece or a cover to prevent dust from entering the upper part of the lens tube; do not touch or wipe the lens surface with your fingers. If there is dust, use a soft brush to lightly Flick away, then wipe with a soft, clean cloth, or use lens cleaning paper dipped in a little xylene or petroleum jelly, but be careful not to scratch the lens surface. If the lens has mild mildew and can't be wiped off with paper, you can use a cotton swab dipped in a little 70% ethanol and 30% ethyl acetate mixture to gently wipe.
3. The biological microscope should not be placed together with corrosive acids, reduced classes or highly volatile chemicals to avoid corrosion and shorten the service life. In principle, when observing specimens containing liquids, coverslips are generally covered; if the liquid contains corrosive chemicals such as acids and alkalis, the surroundings of the coverslips should be sealed with paraffin or petroleum jelly, and then observed . However, because of the microscopic identification of traditional Chinese medicine, such reagents are often used, and it is impossible to seal them all. Therefore, special care should be taken to prevent liquid from flowing onto the stage, and do not get on the objective lens.
4. The biological microscope should not be exposed to direct sunlight, and should not be placed close to the stove or heating, to avoid the excessive cold and hot changes caused by the degumming, deformation or damage of the lens and mechanical parts.
5. Cleaning the objective lens is limited to the outer surface. After the object surface is contaminated with drugs, wipe it with a piece of mirror paper dipped in a little wiping liquid (do not use ethanol); if the back surface needs to be cleaned, use a soft brush to wipe it, or use a leather tip to absorb the dust.
6. When the thickness adjustment is better than aluminum, the movement should be slow, and do not crush the cover sheet to prevent damage to the objective lens and the light collector by controlled strike.
7. After using the oil lens, the cedar oil on the lens must be cleaned (the lens paper can be dipped in a little xylene, but the xylene cannot be penetrated into the lens, otherwise the xylene will dissolve the adhesive between the lenses) , Can make the lens fall off).
8. The mirror surface of the reflector should be protected and clean, and do not allow water, xylene or cedar oil to penetrate, so as to prevent the mercury of the reflector from falling off.
9. The mechanical parts are inflexible, you can use fine silk cloth dipped in xylene Shaojun: wipe off the rust and greasy (do not use ethanol, because these solvents will attack the paint), and then use a little liquid stone clothing to lubricate; Twist to avoid damage.
10. Sometimes stains or foreign objects are found in the field of view of the biological microscope, you can turn the eyepiece first, if these stains rotate, you can determine that the stain is on the eyepiece; otherwise, the specimen can be moved, if the stain moves with it, the stain is On the specimen film. If neither is the case, the stain is on the objective lens. You can pick up the front lens of the food mirror and then check the rear lens. Clean it according to the situation.
Sometimes part of the field of view is unclear. This may be due to fingerprints or dust on the front lens surface of the objective lens or eyepiece, or it may be due to poor specimen preparation or improper microscope usage, such as the final adjustment of the lighting system. Solve separately.
11. After the biological microscope is used, all parts should be wiped clean, the grid-connected objective lens should be turned into a figure eight, and then the lens barrel and the light collector should be lowered and fixed, and then the mirror surface of the reflector should be placed in a vertical position.
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