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It is very important to control the pre-freezing process of Sihuan freeze-drying pharmaceutical freeze-drying machine

 Time of Update: 2022-06-18

Generally, the original biological and chemical properties of the product after being freeze-dried by a freeze-drying machine are basically unchanged, and it is easy to store for a long time .
How can Sihuan freeze-drying pharmaceutical freeze-drying machine prevent the vacuum pressure from falling during use

 Time of Update: 2022-06-18

It can quickly freeze the dried material at low temperature, and then in a suitable vacuum environment, the frozen water molecules are directly sublimated into a process of escaping water vapor .
Some simple maintenance methods of Sihuan freeze-drying pharmaceutical freeze dryer

 Time of Update: 2022-06-18

As long as the water pressure is higher than the pressure set by the water pressure relay, the alarm can be eliminated .
The process is very important in the freeze-drying process of the four-ring freeze-drying experimental freeze-drying machine

 Time of Update: 2022-06-14

b. Remove the glass cover, take out the material tray from the freeze-drying rack, and pack the samples in the tray .
Precautions when using Sihuan Freeze Drying Experimental Freeze Dryer

 Time of Update: 2022-06-14

substances and volatile organic solvents; 2. The sample must be completely frozen into ice, if there is residual liquid, it will cause vaporization and spray ; 3 Note that the cold trap is about minus 65 degrees, it can be used as a low
Determination of ursolic acid in Dashanzha Pills and chlorogenic acid in Shuanghuanglian for injection (freeze-dried)

 Time of Update: 2022-06-13

In addition, take an appropriate amount of ursolic acid reference substance, accurately weigh it, and add anhydrous ethanol to make a solution containing 0.
Briefly explain the common faults and solutions of in-situ freeze dryers

 Time of Update: 2022-06-06

Common faults and solutions of the vacuum system of the in-situ freeze dryer: 1: The performance of the vacuum pump is degraded, and the vacuum pump oil is polluted .
How to improve the freeze-drying efficiency of Sihuan freeze-drying vacuum freeze-drying machine

 Time of Update: 2022-05-05

The mass transfer rate mainly depends on the temperature and pressure of the sublimation interface and the surface of the drying layer .
Determinants of the Duration of the Main Drying Process of a Four Ring Freeze Dryer

 Time of Update: 2022-05-05

> . The determinants of the duration of the main drying process of the four-ring freeze-drying freeze dryer mainly depend on: 1. The thickness of the material 2. The heat
How to choose the size of the freeze dryer?

 Time of Update: 2022-05-03

02m=10m2 That is, the freeze dryer with a plate area of 10m2 needs to be selected, and then check whether the freezing capacity of the condenser of the 10m2 freeze dryer can withstand 200 kilograms (liters).
Check the operation steps before the operation of the four-ring freeze-drying vacuum freeze-drying machine

 Time of Update: 2022-05-03

Check whether the oil level of the hydraulic pump and the quality of the pump oil are normal and whether the vacuum degree value is normal .
The operation steps of the four-ring freeze-drying pharmaceutical freeze dryer

 Time of Update: 2022-05-03

6: After setting the freeze-drying curve, press the manual button on the left side of the freeze-drying program, the freeze-drying machine will enter the automatic operation mode, and enter the sublimation drying stage after the pre-freezing stage .
The control system types and functions of the four-ring freeze-drying freeze-drying machine are different

 Time of Update: 2022-05-03

The experimental freeze-drying machine adopts air-cooled condensation refrigeration system, cold trap can be used for pre-freezing, high-quality stainless steel structure, transparent drying room, easy to observe the whole process of freeze-drying .
Cold trap temperature stage of four-ring freeze-drying freeze dryer

 Time of Update: 2022-05-03

Four-ring freeze-drying freeze-drying machine is often used in experimental, scientific research, universities and other places, so it is also called experimental freeze-drying machine
The unique advantages and cleaning of Sihuan freeze-drying freeze-drying machine

 Time of Update: 2022-05-03

Clearly the effect increases with the temperature of the cleaning agent, but if the contamination has protein content, the temperature should not be higher than 60°C .
The world's first freeze-dried mRNA vaccine preclinical data release How is the progress of mRNA vaccine at home and abroad?

 Time of Update: 2022-05-03

According to the 221-year financial report released by Pfizer earlier, the total revenue of the new crown vaccine Comirnaty reached 36.
Sihuan freeze-drying pharmaceutical freeze-drying machine drying process to ensure the pharmacological properties of traditional Chinese medicine

 Time of Update: 2022-05-02

Four-ring freeze-drying pharmaceutical freeze-drying machine is a vacuum freeze-drying machine equipment with freeze-drying technology applied
Precautions for use and operation of Sihuan freeze-drying pharmaceutical freeze dryer

 Time of Update: 2022-05-02

Because the biopharmaceutical manufacturing environment is very demanding, it must be ensured that the manufacturing
What are the faults when the Sihuan freeze-drying pharmaceutical vacuum freeze dryer is used?

 Time of Update: 2022-04-30

　　Sihuan freeze-drying pharmaceutical vacuum freeze-drying machine freeze-drying is to cool and freeze substances containing a large amount of water into a solid in advance
Matters needing attention when using Sihuan freeze-drying pharmaceutical freeze dryer

 Time of Update: 2022-04-30

The freeze dryer shelf with intermediate fluid control layer has good temperature uniformity and flatness.

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