Knowledge

Glass sheet is a thin glass piece sealed on the slice of the glass slice. It is often used in tissue teaching and scientific research. It is also a commonly used equipment for pathology and inspection

Coverslips come in a variety of widths, lengths, and thicknesses. They are usually sized to fit within the boundaries of the microscope slide, typically 25×75 mm. Square and round coverslips are usual

According to the frosting angle: 45°C edge edge slide, 90° right angle color slide and eight-sided chamfered slide

Cleaning method: wash with clean water or alcohol, and then wipe it clean with cotton or gauze (it is best to use lens paper, fingers to avoid touching the slide, so as not to leave fingerprints on it

In heating with alcohol lamp can use test tubes, flasks, beakers, evaporation dishes to heat the liquid, dry test tubes, evaporation dishes, etc.

1. During titration, the left hand is not allowed to leave the piston, and the solution is allowed to flow down by itself. 2. During titration, the gaze should focus on the color change in the Erlenme

After the burette is washed, first check whether the stopcock rotates flexibly and whether there is any water leakage. First close the stopcock, fill the burette with water, and check with filter pape

(1) The newly purchased alcohol lamp should be equipped with a wick first. The wick is usually screwed together with multiple strands of cotton yarn and inserted into the wick porcelain sleeve. The wi

(1) The installation of the centrifuge should be placed in a cooperative location according to the performance of the centrifuge, and the general low-speed centrifuge (benchtop) can be placed on a sta

The motor does not start (1) The main power indicator light is on, at this time should check the degree of carbon brush wear, if the carbon brush wear more than one-third of the total amount, should b

Domestic desktop centrifuges are divided into low-speed centrifuges (< 10000rpm/min), high-speed centrifuges (> 10000rpm/min, a 30000rpm/min), and ultra-high-speed centrifuges (>) according to the max

1. Cannot be used as a reaction vessel 2. Cannot be heated After we wash things, we like to dry them in the oven, but the measuring cylinder is glassware, and heating will deform it, thus affecting it