2022-05-09 Testing for Gold's purity, involves the use of strong acids. Gold is a noble metal that is resistant to change by corrosion, oxidation, or acids. In order to distinguish gold from other base metals, the gold-containing item is rubbed on a black stone/surface which will leave a visible mark. Nitric A
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2022-05-07 There are multiple biological safety cabinet classes. But what are they and how are they different? Biological safety cabinet classes (or biosafety cabinet classes) are categories describing how the cabinet works and what it protects. These “categories” are Class I, Class II and Class III.Class IA C
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2022-04-01 What is the biological safety cabinet?Biological safety cabinet is a box-type air purification negative pressure safety device. It can prevent certain dangerous or unknown biological particles from dissipating aerosols during the process of experimental operation. It is widely used in scientific re
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2022-03-04 Can it capture the SARS-CoV-2?The SARS-CoV-2’s estimated size is around 0.12 μm, and there are doubts on the filter’s efficiency to capture the virus, especially with the HEPA filter. There is a common misconception that HEPA filters only capture particles with the size of 0.3 μm or larger. So here
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2021-07-17 Recently we have received a good news. We won the bid for the World Health Organization bidding project. The amount of this winning project is nearly 240,000 US dollars. The products involved in this bid include nucleic acid extractors, refrigerators, hematology analyzers, biochemical analyzers, etc
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