The vertical flow purification workbench is a kind of equipment used in laboratory and other working environments to ensure air quality and sample purity.Its main function is to draw the outside air into the top of the purification workbench through the filter and fan, and discharge it from the bottom of the workbench after filtering.Because the table is empty
Fluorescence detector is an instrument commonly used for microbial detection. It uses the characteristics of fluorescence signal to detect the presence and quantity of microorganisms.The principle can be simply described as follows: the fluorescence detector will send a laser beam of a specific wavelength to illuminate the sample to be tested.When the beam shines on the sample
Laboratory ultra clean workbench is a special laboratory facility to provide a high clean environment, which is widely used in scientific research, medicine, bioengineering and other fields.Laboratory ultra clean workbench is widely used in the following fields: 1. Biomedical research: it can be used for research and practice in cell culture, tissue engineering, microbiology and other fields
Welcome the superior leaders to carry out the research of "visiting hundreds of towns and thousands of enterprises to improve the business environment", and the leaders of the Shanghai Federation of Industry and Commerce lead the team to visit the enterprises in the area under their jurisdiction to carry out enterprise assistance services, learn more about the enterprise safety management, production and operation, and the problems in development, and further "check the pulse" for enterprises to further promote the accurate and direct access to policies
The aerosol generator is a device that converts liquid or solid substances into gaseous particles. Its principle is to use high-speed airflow to spray liquid or solid substances into the air to form tiny particles, and then through the action of electric field, magnetic field or gravity and other force fields, the particles are charged or separated, and finally form aerosols.aerosol
Basic knowledge of microplate reader and its detection principle The microplate reader has single wavelength and dual wavelength detection functions Sometimes users do not know when to use single or dual wavelength detection.The so-called "single wavelength" is to use a wavelength with the maximum absorption of the color developer, namely 450 nm or 492 nm, for colorimetric determination;And "dual wavelength
In industrial production and scientific experiments, compressed air, as an important power source and experimental medium, its quality directly affects production efficiency and the accuracy of experimental results.Therefore, how to effectively collect and ensure the quality of compressed air becomes the key.This article will introduce a special equipment for collecting compressed air -
During the use of biological safety cabinet, the operation rules on how to deal with biohazard spillage and clean up the laboratory shall be posted, and every member of the laboratory using these rules shall read, understand and remember them.In case of spillage of biologically hazardous articles in the biosafety cabinet, the safety cabinet shall be in working condition immediately
Planktonic bacteria sampler is an instrument used to monitor the level of microbial pollution in air quality. It is widely used in food processing, pharmaceutical, medical, scientific research and other fields to ensure environmental health and safety.This article will introduce the application field, working principle, performance characteristics and use method of this product in detail.Application field: food worker
What should be paid attention to in the DOP leak detection of the high-efficiency filter of the ultra clean workbench 1. The purification effect of the laminar flow ultra clean workbench and its installation and replacement: if the high-efficiency filter and its installation have defects, such as the filter itself has small holes or the installation is not tight enough to form small cracks, the intended purification effect will not be achieved.Therefore,
The influencing factors and testing principle of tablet hardness generally refer to its compressive strength, that is, the radial crushing force of the tablet.It has an important impact on drug production and quality. For example, if the hardness of the tablet is too small, it will cause looseness, which will seriously affect the subsequent coating, packaging and transportation processes;The hardness of the tablet is too high
The structure of the biosafety cabinet The biosafety cabinet is generally composed of a box and a bracket.The box part mainly includes the following structures: 1. Air filtration system The air filtration system is the main system to ensure the performance of the equipment, which is composed of the drive fan, air duct, circulating air filter and exhaust air filter.Its main
Explore a new line of defense for biosafety: the mystery and charm of the secondary biosafety cabinet In modern biomedical research and laboratory work, biosafety has always been an important issue that cannot be ignored.In order to ensure the safety of laboratory staff and environment and prevent microbial leakage and cross infection, scientists designed and applied
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