Let's take a look at the working principle of magnetic stirrer
Time of Update: 2022-09-09
With the heating temperature control system, the sample temperature can be heated and controlled according to the specific experimental requirements, maintaining the temperature conditions required by the experimental conditions, and ensuring that the liquid mixing meets the experimental requirements .
The technological process of medicine low temperature heating unit
Time of Update: 2022-06-18
The heat transfer medium of the whole circulation system of the medical low temperature heating unit is a fully closed circulation.
Even in the case of high temperature operation, the heat transfer medium in the expansion vessel will not be higher than the set value .
Workflow of enzyme oral liquid filling machine
Time of Update: 2022-06-18
If the pressure is detected by the centering cover of the liquid injection port, the tray will stop rising, and then the air valve will be opened, and the bottle will be filled with CO2 .
Keyuan filling machine: common filling methods of filling machines
Time of Update: 2022-06-04
Isobaric method: Isobaric method, also known as pressure gravity filling method, is to first inflate the packaging container under the condition of higher than atmospheric pressure to make it form the same air pressure as that in the liquid storage tank, and then flow into the packaging container by its own weight.
Maximum allowable residue limits and analytical techniques of nitrofuran metabolites-pretreatment methods (1
Time of Update: 2021-09-20
China's national standard "GB/T21311-2007 Determination of Nitrofuran Drug Metabolite Residues in Foods of Animal Origin High Performance Liquid Chromatography/Tandem Mass Spectrometry" uses methanol for tissue samples such as muscle, viscera, fish, shrimp and casing -After washing with water (1+1, v/v) sufficiently, discard the solution and analyze only the bound NFs metabolites to avoid interference from external pollution .
Cryopreservation of Zygotic Embryonic Axes and Somatic Embryos of European Chestnut
Time of Update: 2020-11-12
For zygotic embryonic axes, the highest post-thaw survival and plantlet recovery rates are obtained by desiccation in a laminar flow hood to 20–25% moisture content, followed by direct immersion in liquid nitrogen.
4 billion large varieties of Huahai into the game against the third batch of collection
Time of Update: 2020-07-24
Today (June 30), NMPA official website shows that Huahai Pharmaceutical sau-ping collapse tablets were approved for listing, the approval number for the National Drug Code H20203281, the National Drug
The current situation and prospect of the research of the feeding enzyme
Time of Update: 2020-07-02
As a new type of high-efficiency feed additive, enzyme can improve animal production performance and reduce the pollution of excreta, but also providean an effective way to open up new feed resources