Do you know the correct usage and operation process of commonly used laboratory instrumentsг┐

Do you know the correct usage and operation process of commonly used laboratory instruments?

The laboratory is the forefront of scientific research, and instrument equipment is the core of laboratory operation. Mastering the correct instrument usage and operation process can not only improve work efficiency and ensure the accuracy of experimental results but also ensure the personal safety of laboratory personnel. This article will introduce some common laboratory instruments, including their basic operations and usage methods.

Section 1: Electronic Balance

Electronic balance is one of the most frequently used and widely used instruments in the laboratory, mainly used for weighing the mass of substances. When using an electronic balance, the first step is to check whether the balance is in a horizontal state, then check whether the balance is zeroed. Then, place the substance to be weighed in the balance pan and read the value. After use, clean the balance and turn off the power.

Section 2: Centrifuge

Centrifuge is mainly used for separation, concentration, and purification operations. When using a centrifuge, the first step is to select the appropriate speed and centrifugation time according to the experimental requirements. Then, place the sample tube into the centrifuge rotor, close the centrifuge, and do not leave randomly after starting. After the centrifugation is completed, turn off the power first, and then remove the sample tube.

Section 3: Ultra-clean Workbench

Ultra-clean workbench is an aseptic working environment, mainly used for microbiology, cytology, and other experiments. When using an ultra-clean workbench, the first step is to place the experimental items on the experimental table of the ultra-clean workbench, then turn on the ultraviolet lamp for disinfection. During the experiment, keep the ultraviolet lamp turned on to avoid ultraviolet radiation. After the experiment is completed, turn off the ultraviolet lamp and turn off the ultra-clean workbench.

Section 4: Water Bath

Water bath is mainly used for heating and maintaining the temperature of experimental samples. When using a water bath, the first step is to place the water bath on a stable experimental table, then add an appropriate amount of water, and place the sample to be heated into the water bath. After the water bath is heated, turn off the power and remove the sample.

Section 5: Ultraviolet Spectrophotometer

Ultraviolet spectrophotometer is an instrument used to measure the absorbance of a sample at a specific wavelength. When using a UV spectrophotometer, the first step is to select the appropriate wavelength according to the experimental requirements, then place the sample tube into the light path, start the instrument, and read the absorbance value.

　　Section 6:Electrophoresis Instrument

Electrophoresis instrument is an instrument used for separation, purification, and identification of biological macromolecules such as proteins and nucleic acids. When using an electrophoresis instrument, the first step is to select the appropriate voltage and electrophoresis time according to the experimental requirements, then place the sample tube into the electrophoresis, and start the electrophoresis instrument. After the electrophoresis is completed, turn off the power and remove the sample tube.

　　Section 7: Microscope

A microscope is an optical instrument used to observe microscopic objects. When using a microscope, the first step is to select the appropriate objective and eyepiece according to the experimental requirements, then place the sample to be observed on a slide and place it on the microscope stage. After use, turn off the power and clean the microscope.

This is the correct usage and operation process of commonly used laboratory instruments, and it is hoped that it will be helpful to everyone. It is necessary to strictly comply with the operational procedures and pay attention to safety during the use of the instruments to avoid accidents. At the same time, regular maintenance and care of the instruments should also be carried out to ensure their normal operation.