I . The vacuum value of the system: The airtight space of the rotary evaporator is composed of glass components such as evaporating flask, evaporating tube, sealing ring, condenser tube, vacuum buffer bottle, vacuum pump and vacuum pipeline...
1. The basic requirements of laboratory fume hood fans are level and firm, and the foundation height is 200mm. 2. The steel support of the laboratory fume hood fan must be fixed on the concrete foundation, and the rubber damping pad must be...
While Chinas epidemic prevention and control effortshaveachieved significant results, the growth trend of overseas outbreaks is still continuing, increasing the pressure on China to prevent imported cases and the complexity of preventing a r...
According to media reports, as of July 8th, the latest World Health Organization data shows that, except for China, the confirmed cases of COVID-19 have been up to more than 11.58 million, and the deaths havereached more than 530,000. Global...
First, add the materials to be separated into the centrifuge tubes of the desktop low-speed centrifuge and insert them into the holes of the centrifuge head. (However, the amount of material added to each centrifuge tube must be basically t...
The nitrogen blower has the characteristics of time saving, convenient operation and easy control, and can quickly obtain the expected results. It is widely used in pesticide residue analysis, commodity inspection, food, environment, pharma...
The sterilization principle of the ultraviolet sterilizer is to use the irradiation intensity of the ultraviolet lamp, that is, the irradiation intensity emitted by the ultraviolet sterilization lamp is inversely proportional to the distanc...
Density meter produced by Zhengzhou Nanbei Instrument Equipment Co., Ltd .: The density meter used in physical experiments is an instrument for measuring the density of liquids. It is manufactured and operated according to the principle tha...
How to choose the protective clothing that suits you is a science. We have summarized 7 key points to teach you how to choose the protective clothing that suits you. These 7 key points are Protective function 2. (Re mention) protection func...
How to choose a mask, which masks is good? 1. Does wearing a mask really work? it works! However, wearing a mask and washing your hands frequently must be performed simultaneously. 2. Types and uses of masks Recommendations: N95 (with or wi...