Laboratory Vacuum Evaporator
(1)1L/2L---Manual lifting with irony base/Manual lifting with SS base/Electric lifting
(2)3L/5L/10L/20L/30L/50L---Manual Lifting/Electric Lifting
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2. Customization:
(1)Design support
(2)Directly supply the Senior R&D organic intermediate, shorten your R&D time and cost
(3)Share the advanced purifying technology with you
(4)Supply the high quality chemicals and analysis reagent
(5)We want to assist you on Chemical Engineering (Auto CAD, Aspen plus etc.)
3. Assurance:
(1)CE and ISO certification Registered
(2)Trademark: ACHIEVE CHEM(since 2008)
(3)Replacement parts within 1-year for free
Description
Technical Parameters
The working principle of a laboratory vacuum evaporator is to use low pressure and heating in a vacuum environment to rapidly evaporate solvents or volatile substances in liquid or solid samples.During evaporation,the sample is in a low-pressure environment,making it easier for solvent molecules to leave the surface and jump into the gas phase,which is then evacuated by the vacuum system.The evaporated solvent gas condenses into a liquid after being cooled by the condenser,which can be further processed or recycled.It is a widely used equipment in laboratory environments,mainly used for processing and analyzing various liquid samples through vacuum evaporation technology.This technology is based on the principle of reducing the boiling point of liquids under low pressure(i.e.vacuum)conditions,allowing liquids to evaporate at lower temperatures,thereby accelerating the evaporation process and reducing energy consumption.
Apparatus has high efficiency and accurate evaporation ability,which can be widely used in laboratory work such as solvent removal,solvent concentration and material surface modification.It can provide higher evaporation rate and lower solvent residue,which is helpful for the subsequent steps of sample treatment and analysis.
We provide laboratory vacuum evaporator, please refer to the following website for detailed specifications and product information.
Product: https://www.achievechem.com/chemical-equipment/rotary-evaporators.html
Product Introduction
Laboratory Vacuum Evaporator can be classified based on their working principle,structural design,and application field.The following is a specific introduction to the classification:
► Classification based on working principle
(1) Vacuum evaporation evaporator:
This type of evaporator utilizes vacuum technology to create a low-pressure environment inside the equipment,reducing the boiling point of the liquid and allowing it to evaporate at lower temperatures.By providing heat through the heating system,the liquid sample evaporates in the evaporation chamber,and then the vapor is collected by the condensation system.This type of apparatus is widely used in situations that require fast and low-temperature evaporation.
(2) Condensing evaporator:
After evaporating the liquid,the condensing apparatus condenses the steam into a liquid state through a cooling medium.This type of evaporator is suitable for processes that require the recovery and reuse of liquids.
► Classification based on structural design
(1) Rotating evaporator:
A rotating apparatus is a device that evaporates a solution through the motion of a rotating drum in a vacuum state.Its main feature is that the solution forms a thin film inside the rotating drum,increasing the heating area and improving the evaporation efficiency.Rotating evaporators are widely used in separation,purification and other process operations in pharmaceutical,chemical and other fields.
(2) Multi effect evaporator:
A multi effect apparatus consists of multiple apparatus,each capable of simultaneously evaporating multiple effects.This type of evaporator improves evaporation efficiency and reduces energy consumption by fully utilizing thermal energy.Multi effect apparatus are widely used in fields such as chemical,pharmaceutical,and food,especially in desalination and concentration.
(3) Single effect evaporator:
A single effect apparatus can only achieve single effect evaporation and is suitable for small-scale production.For example,it can be used for juice concentration,dairy product concentration,etc.
► Classification based on application field
(1) Evaporators in the field of chemistry:
These types of apparatus are mainly used in chemical experiments,such as concentrating organic solvents and extracting effective components from natural products.
(2) Evaporators in the field of biology:
In biological experiments,apparatus are used to prepare biological samples,extract proteins,etc.
(3) Evaporator in the pharmaceutical field:
Apparatus in the pharmaceutical field are used to prepare pharmaceutical raw materials,extract effective ingredients from drugs,and so on.
(4) Evaporators in the field of environmental protection:
Environmentally friendly apparatus are used for treating wastewater,recovering valuable substances,etc.
These classification methods are not absolute,and sometimes an evaporator may satisfy multiple classification conditions simultaneously.For example,a multi effect apparatus used in the pharmaceutical field simultaneously meets three classification methods based on working principle,structural design,and application field.When selecting a product,it is necessary to consider the specific experimental requirements,sample characteristics,and economic conditions comprehensively.
Product Specifications
All kinds of"Rotary Evaporator",Price List,you can choose online HERE
Knowledge
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The evaporation effect of laboratory vacuum evaporators can be judged from the following aspects:
(1) Observation method:
This method is the simplest and most intuitive.By observing the changes in the liquid during the heating process,the evaporation effect can be preliminarily determined.For example,when a liquid begins to bubble and produce steam,it can be considered that evaporation has begun.
(2) Temperature method:
Determine the evaporation effect by measuring the temperature change of the liquid.When the temperature of the liquid begins to stabilize at a specific value,it can be considered that the evaporation process has stabilized or completed.
(3) Quality method:
Determine the evaporation effect by measuring the mass change of the liquid in the container.When the mass of the liquid no longer undergoes significant changes,it can be considered that the evaporation process has been completed.
(4) Humidity method:
If the evaporation process involves the collection or treatment of steam,the evaporation effect can be determined by measuring the humidity changes in the environment.When the humidity in the environment begins to stabilize at a specific value,it can be considered that the evaporation process has been completed.
(5) Vacuum value:
For product,the vacuum value of the system is an important indicator for judgment.The lower the vacuum value,the better the evaporation effect is usually.The vacuum value of the system can be monitored through a vacuum controller or vacuum gauge to determine the evaporation effect.
(6) Heating power and temperature:
The temperature and heating power of the heating pot can also affect the evaporation effect.The higher the temperature of the heating pot,the faster the distillation effect of the solvent,but it is also necessary to consider the thermal sensitivity of the target ingredient and the safety of the operation.
(7) The speed of the evaporator bottle:
The speed of the evaporator bottle also affects the evaporation effect.The faster the rotation speed,the larger the surface wetting area and heating area inside the bottle,but at the same time,the thicker the liquid film thickness,which may affect the heat transfer effect.
(8) The temperature of the cooling medium:
The temperature of the cooling medium can also affect the evaporation effect.To ensure optimal distillation efficiency,an appropriate temperature difference should be maintained between the cooling medium and the heating pot temperature.
(9) Equipment operation status:
Regularly check the operation status of the apparatus,such as whether the temperature and pressure are normal,whether the water flow is sufficient,whether the equipment has leakage or odor,etc.These can be used as auxiliary indicators to judge the evaporation effect.
In practical operation,appropriate judgment methods can be selected based on specific situations,and multiple methods can be combined for comprehensive judgment to improve the accuracy and reliability of judgment.At the same time,in order to ensure the long-term stable operation and efficient evaporation of the apparatus,it is also necessary to pay attention to the maintenance and upkeep of the apparatus.
Applications
Laboratory vacuum evaporator has an important application in the concentration and purification of DNA and RNA,which mainly realizes the concentration and purification of samples by removing solvents and moisture.
► Operating Steps
A. Put the solution containing DNA or RNA into the evaporating dish of the product.
B. Set appropriate temperature and vacuum conditions,and start the apparatus to make the solution evaporate.
C. With the evaporation of the solution,the water and solvent in it will be removed,and the target substances such as DNA or RNA will be gradually concentrated in the evaporating dish.
D. When the required concentration degree is reached,closing the apparatus and taking out the concentrated sample.
► Practical Significance
A. Concentration:The product in the laboratory can quickly and effectively remove the water and solvent from the DNA or RNA sample,thus concentrating the target substance into a smaller volume.This is helpful to improve the concentration of the sample and reduce the amount of reagent and container used in subsequent analysis or operation.
B. Purification:Removal of solvent and water can also help to purify DNA or RNA samples and remove impurities and pollutants.Many unnecessary substances(such as salt,buffer,etc.)will be evaporated through the concentration process of product,while the target DNA or RNA will remain in the sample.This can improve the purity of the sample and reduce the interference of subsequent experiments.
C. Improving the sensitivity of analysis:The concentration and purification of DNA or RNA samples can improve the sensitivity of subsequent analysis.In PCR amplification,gene sequencing,nucleic acid hybridization and other experiments,the concentrated samples have higher content of target substances,which can improve the sensitivity and accuracy of detection.
Electrical test
► Test preparation
1) Power off confirmation: Before any electrical test,be sure to confirm that the equipment has been completely powered off,and hang a warning sign such as"Do not close"to prevent accidental electric shock.
2) Tools: Obtain required electrical testing tools,such as a multimeter,insulation resistance tester,and ground resistance tester.
3) Check drawings: Carefully consult the electrical drawings of the equipment to understand the structure,principle and test requirements of the electrical system.
► Test steps
Insulation resistance test
1) Insulation resistance tester is used to test the insulation resistance value between each phase and each relative ground of the equipment.
2) The insulation resistance value should comply with the requirements of the equipment manual or related standards. Generally,for low-voltage electrical equipment,the insulation resistance value should not be less than 0.5MΩ.
Ground resistance test
1) Use a grounding resistance tester to test the grounding resistance of the device's grounding system.
2) The grounding resistance value should meet the requirements of relevant national standards,usually not more than 4 ohms.
Voltage test
1) When the device is safe,use a multimeter to test the voltage of each phase of the device to ensure that the voltage is stable and meets the design requirements.
Current test
1) When the equipment is running,the clamp ammeter is used to test the current value of each loop to ensure that the current value is within the rated range and the current of each loop is balanced.
Electrical connection check
1) Carefully check the electrical connection points of the equipment to ensure that the connection is firm and reliable,without loosening and falling off.
2) Use a multimeter to test the contact resistance of each connection point to ensure good contact.
Protective device test
1) Test the overload protection,short circuit protection and other protection devices in the equipment to ensure that they can operate correctly and protect the safety of the equipment.
► Test precautions
1) Safety first: When conducting electrical tests,be sure to comply with safe operating procedures and wear necessary protective equipment to prevent accidental electric shock.
2) Accurate test: Use qualified test tools and test according to the correct test method to ensure the accuracy of the test results.
3) Record data: Record all data during the test in detail for subsequent analysis and processing.
4) Timely handling of problems: In the process of testing,if any problem or abnormal phenomenon is found,it should be stopped immediately to check and troubleshoot to ensure the safe and reliable operation of the equipment.
Precautions for use
Before use, carefully check whether all parts of the equipment are in good condition to ensure that the equipment is in normal working condition.
During the operation, attention should be paid to the pressure and temperature of the evaporation chamber, as well as the evaporation of the solution, and the operation parameters should be adjusted in time.
After use, the equipment should be cleaned in time to keep the equipment clean and dry to extend the service life of the equipment.
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