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Announcement of Beijing Municipal Administration for Market Regulation on Food Safety Supervision and Sampling Information (Issue 80, 2022
Time of Update: 2023-02-02
In accordance with the requirements of the Food Safety Law of the People's Republic of China and other laws and regulations, as well as the city's food safety supervision sampling plan and correspondi
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Surprisingly, these microRNAs promoted, rather than inhibited, the expression of proteins
Time of Update: 2023-01-06
High-Throughput Analysis Reveals miRNA Upregulating a-2,6 Sialic Acid Through Direct miRNA: miRNA Interactions MicroRNAs play a role in cancer development and are thought to only inhibit protein expression in dividing cells, such as tumor cells.
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Surprisingly, these microRNAs promoted, rather than inhibited, the expression of proteins
Time of Update: 2023-01-06
High-Throughput Analysis Reveals miRNA Upregulating a-2,6 Sialic Acid Through Direct miRNA: miRNA Interactions MicroRNAs play a role in cancer development and are thought to only inhibit protein expression in dividing cells, such as tumor cells.
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What is the "versatility" of a portable microplate reader
Time of Update: 2022-10-12
When the enzyme conjugate and the substrate of the enzyme are added sequentially, a coloring reaction occurs, and the degree of coloration of the microplate reader is related to the amount of antibody to be tested in the sample to be tested, from which qualitative or quantitative detection results can be obtained.
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Wangjinglong Bio-based Materials Project Settled in Henan
Time of Update: 2022-03-29
, with registered capital of 2 billion yuan, plans to build 10 Wandun / years polylactic acid, 20 Wandun / years biodegradable modified Material items.
, with registered capital of 2 billion yuan, plans to build 10 Wandun / years polylactic acid, 20 Wandun / years biodegradable modified Material items.
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Levima Technologies plans to build a 50,000-ton/year PPC industrial production line, further strategic layout in the field of biodegradable materials
Time of Update: 2022-01-08
Levima Corporation announced in the noon on December 24 that in order to further realize the strategic layout in the field of biodegradable materials, the company and the Changchun Institute of Applied Chemistry of the Chinese Academy of Sciences recently signed the "Cooperative Research and Development of Carbon Dioxide-based Biodegradable Materials Based on Fourth-Generation Catalysts" (PPC) Supercritical Polymerization Industrialization Technical Cooperation Agreement .
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Industrial caprolactam. Determination of the absorption value of potassium permanganate. Spectrophotometric method (1
Time of Update: 2021-12-13
01 mol / L of potassium permanganate standard Titrate the solution and let it stand at 25°C for 10 min.
5. 9 Standard titration solution of potassium permanganate : (1/5KMnO 4 )=0.
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Will the positive detection of the express package infect people
Time of Update: 2021-12-01
On November 15, according to media reports, Zhongguancun Street in Beijing received a notification from the Haidian Center for Disease Control and Prevention that residents of Keyuan Community tested positive for a package of express items sent by Xilin Gol League in Inner Mongolia Autonomous Region .
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Dicyandiamide-formaldehyde polymer containing sulfonic acid group
Time of Update: 2021-11-05
5, then add sodium a-hydroxysulfonate and an appropriate amount of catalyst; after reacting at 75-95°C for 3 to 4 hours and cooling to room temperature, the sulfonic acid group-containing dicyandiamide-formaldehyde polymer is obtained .
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Ningxia successfully solved the worldwide problem of manganese slag handling
Time of Update: 2021-10-19
(Li Hongsheng and Wang Wenli)This new process and new technology is the first in the industry and successfully solved the problem of waste residue and sulfur-containing flue gas treatment.
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Malaysia's BASF Petrochemical plans to increase production capacity of isooctanoic acid
Time of Update: 2021-10-19
Isooctanoic acid is a chemical intermediate used as a compound in the production of synthetic lubricants and petroleum additives .
Currently, in addition to the production base in Kuantan, Malaysia, BASF is also producing isooctanoic acid at its integrated production base in Ludwigshafen, Germany .
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Industrial methyl chloride (4
Time of Update: 2021-10-04
Using bromocresol green as an indicator, titrate with sodium hydroxide standard titration solution to calculate the acid content .
01mol/L sodium hydroxide standard titration solution until the solution appears blue .
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China's titanium dioxide market will affect the European market
Time of Update: 2021-09-22
Market experts estimate that there are 8,000 tons of titanium dioxide from China in Germany/Austria/Switzerland .
Once the titanium dioxide produced by the chloride method meets the market demand, it will become a terrible competitor, and Western companies will face fiercer competition .
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Ukraine continues to implement safeguard measures against imported sulfuric acid
Time of Update: 2021-09-12
com News on August 28, Ukraine's Interagency International Trade Commission issued an announcement that the country will continue to implement safeguard measures on all sulfuric acid and oleum imported from various countries in the form of quotas, with a validity period of 3 years .
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Production process and product use of maleic anhydride
Time of Update: 2021-08-15
At the same time, the metering pump sprays benzene into the catalyst layer at a flow rate of 150kg/h, and controls the reaction temperature to be about 360°C.
The maleic anhydride vapor in the reaction gas is absorbed by water and becomes a maleic acid solution with a concentration of about 30%.
