Nucleic acid dilemma: 3 institutions were filed in 10 days, and false negatives and false positives appeared frequently. Why did it become a high-risk industry
Time of Update: 2022-08-10
” Guo Yanhong, Inspector of the Medical Administration and Hospital Administration, introduced at the press conference of the Joint Prevention and Control Mechanism of the State Council on the 23rd, "Although the specificity of our nucleic acid test is 100%, in actual work, the laboratory may cause problems due to the test process and operation.
Acrylic acid-maleic anhydride copolymer application
Time of Update: 2021-12-08
Table 5-9 The solubilization and dispersion effect of MA-AA copolymer on CaSO4·2H2O and CaCO3Table 5-10 Chelation of MA-AA copolymer to CaCO3(2) Anti-scaling performanceAcrylic acid-maleic anhydride copolymer can be used in harsh environments and has good storage stability.
Eurasian Economic Union approves mandatory labeling requirements for packaged drinking water
Time of Update: 2021-11-11
Food Partner Network News Packaging Drinking Water Labeling and Identification It is reported that the resolution requires member states to decide on their own time and procedures for the use of relevant labels and signs within their borders, but the committee must be notified 6 months in advance.
Selection of analytical methods for determination of residues of carbachol, olaquindox and metabolites in liver and muscle of cattle and pigs
Time of Update: 2021-09-30
The extraction effect of ethyl acetate-acetonitrile (1+1) mixed solvent is the best, which can achieve satisfactory recovery rate and reduce the weak polar impurities.
About putty, this time to understand! Putty Question 33
Time of Update: 2020-12-26
(2) water-resistant putty paste is mainly composed of polymer organic matter, gray calcium powder, ultra-fine fillers and water preservation agents, such putty whiteness is good, high bonding strength, with water resistance, is rigid, alkaline products.
Nuclear Magnetic Resonance Investigation of Oriented Lipid Membranes
Time of Update: 2020-12-08
31 P-and2 H-nuclear magnetic resonance are widely used to study order and dynamics, but also orientation of lipid bilayers at solid interfaces.
Preparation of two types of oriented bilayers is presented: multilamellar bilayers oriented at flat solid interfaces and unilamellar tubular bilayers inside porous substrates.
Vacuum electroplating primer resin LuCure8352
Time of Update: 2020-10-08
LuCure8352 is a two-power polyurethane acrylic, the resin was specifically developed for vacuum plating primers, we have further determined its physical characteristics and application direction throu
How to deal with the performance degradation of ultra pure water machine
Time of Update: 2018-12-21
When using the ultra pure water machine, users will try their best to keep the performance of the ultra pure water machine unchanged, so as to ensure the normal water demand If the performance of the
JACS: the joint research center of felinga Nobel Prize scientists of East China University of science and technology to realize the "double detection" biological imaging of light controlled
Time of Update: 2018-07-18
Recently, the Journal of American Chemical Society, a famous international journal in the field of chemistry, reported on-line the latest research results (DOI: 10.1021 / JACS 8b05425) of the joint re
The function of alum food additive
Time of Update: 2017-06-09
Introduction: alum is a common food additive Alum and food additives have a very wide range of functions In food, the processing of vegetables or the storage of fruits can rely on alum, which has the
Instructions for use of traditional Chinese medicine pill making machine
Time of Update: 2014-02-19
The traditional Chinese medicine pill making machine adopts the high-precision mechanical transmission mode and the thermoelectric drying process to coat / sugar coat the finished products, which can