Lab Magnetic Stirrer
(1)LCD/Double Knob/Timmer/Heating Plate
(2)Stirring Volume:5L
2. Large Capacity Magnetic Stirrer
(1)Double Knob/DC Brushless Motor/100~240V/5~40°C 80%RH
(2)Stirring Volume:10L/20L/50L
3. Multi Link Magnetic Stirrer:
(1)Double Knob/LCD/100~240V/100~1500RPM
(2)Stirring Volume:3*1/6*1/9*1
4. Mini Magnetic Stirrer:
(1)Miniature Brushless Motor/Stepless Speed Regulation/0~2000RPM/AC 220V 50Hz
(2)Stirring Volume:2L
5. Single Control Multi Connection Magnetic Stirrer:
(1)LED Digital/0~1600RPM/RT±5~99.9°C/220V 50/60Hz
(2)Stirring Volume:4*1/6*1
***Price List for whole above, inquire us to get
Description
Technical Parameters
Lab magnetic stirrer are essential tools in laboratories, finding their use in a wide range of applications. These devices that utilize rotating magnetic fields to agitate liquids through a magnetic stir bar, it offer a convenient and efficient way to mix samples uniformly. They are indispensable tools in laboratories, finding applications in a diverse range of chemical, biological, and analytical procedures. Their ability to provide uniform and controlled mixing makes them an essential component of many laboratory setups.
Operation Procedure
The lab magnetic stirrer is a commonly used laboratory equipment that utilizes the principle of magnetic coupling to agitate liquid samples, ensuring uniform mixing and preventing sedimentation. This article outlines the basic operation procedure for using a product.
Step One: Preparation
1.Ensure that the agitator is placed on a stable and level surface to prevent any accidents or spillage.
2.Clean and dry the working surface of the stirrer to avoid any contamination of the sample.
3.Prepare the liquid sample in a suitable container that is compatible with the agitator. Ensure that the container is clean and dry.
Step Two: Setting Up the Magnetic Stirrer
1.Connect the power supply to the agitator and turn it on.
2.Adjust the speed control knob to the desired speed. It is recommended to start at a low speed and gradually increase it as needed.
3.Place the magnetic stir bar into the liquid sample. Ensure that the stir bar is clean and free of any debris.
Step Three: Stirring the Sample
1.Place the container with the liquid sample and the magnetic stir bar onto the working surface of the agitator.
2.The magnetic field generated by the stirrer will cause the stir bar to rotate, agitating the liquid sample.
3.Monitor the stirring process and adjust the speed as needed to ensure uniform mixing.
Step Four: Ending the Stirring Process
1.Once the sample has been adequately mixed, turn off the agitator and disconnect the power supply.
2.Remove the container from the stirrer and retrieve the magnetic stir bar using a suitable tool, such as a magnetic wand.
3.Clean the stir bar and the container thoroughly to prevent any cross-contamination.
Step Five: Safety Precautions:
1.Always wear lab coats and safety glasses when operating the agitator.
2.Keep the work area clean and free of any obstructions to prevent accidents.
3.Do not operate the agitator if it is damaged or malfunctioning.
4.Ensure that the power supply is disconnected before cleaning or maintaining the equipment.
5.You can ensure the safe and effective use of a agitator in your laboratory experiments by above these simple steps.
Select Criteria
When choosing a lab magnetic stirrer, consider the following criteria:
Stirring Capacity:
Select a stirrers that can handle the volume of liquid you typically work with. Consider the size and depth of your containers.
Speed Range:
Choose a stirrers with an adjustable speed range that suits your mixing requirements. Some stirrers offer a wide range of speeds, while others are fixed-speed.
Magnetic Field Strength:
Ensure that the stirrer generates a strong enough magnetic field to effectively rotate the stir bar in your liquid sample.
Durability and Material:
Look for a stirrer made from durable materials that can withstand frequent use in a laboratory environment.
Ease of Use and Cleaning:
Consider the stirrer's design and how easy it is to operate and clean. Some models have a simple on/off switch, while others offer more advanced features like digital speed control.
Price and Budget:
Finally, consider your budget and choose a stirrer that offers the best value for your money, balancing features and cost.
Usage
In the complex processes of the pharmaceutical industry, laboratory magnetic stirrers do play an indispensable role. Its multifunctionality and precise control capability make it crucial in various aspects of drug formulation, testing, and quality control.
(1) Preparation of suspensions and emulsions:
A agitator drives a stirrer (usually a small magnetic rotor) to rotate at the bottom of the container through its built-in magnet, thereby stirring the liquid inside the container. This non-contact mixing method avoids the pollution risk caused by traditional mixing and is very suitable for pharmaceutical environments with extremely high hygiene requirements. When preparing suspensions and emulsions, agitator can ensure uniform distribution of drug particles or droplets in the liquid, improving product stability and bioavailability.
(2) Mixing of liquid preparations:
For liquid formulations that require precise proportioning of multiple ingredients, agitator can provide stable stirring speed, ensuring that each ingredient can be thoroughly mixed and avoiding situations where local concentrations are too high or too low. This is crucial for maintaining drug efficacy and safety
2. Dissolution test
(1) Determination of dissolution rate and degree:
Placing pills or capsules in a specific solution (such as simulated gastric or intestinal juice) and stirring with a agitator can simulate the dissolution process of drugs in the human body. By regularly sampling and measuring the concentration of drugs in the solution, the dissolution curve of drugs can be plotted to determine their dissolution rate and degree. This is of great significance for optimizing drug formulations, predicting drug absorption in the body, and evaluating drug efficacy.
(2) Quality control:
The application of agitator in dissolution testing also helps pharmaceutical companies implement strict quality control. By comparing the solubility of drugs prepared under different batches or production processes, potential quality issues can be identified and corrected in a timely manner, ensuring the consistency and stability of the final product.
Lab Magnetic Stirrer also plays an important role in drug dissolution testing. By simulating the digestive environment inside the human body, such as the pH value and peristaltic movement of the gastrointestinal tract, magnetic stirrers can help researchers evaluate the solubility of drugs in pills or capsules.
The environmental science laboratory widely uses laboratory agitator in the field of water and soil analysis. This equipment plays an important role in these analysis processes due to its high efficiency and pollution-free characteristics.
(1) Mixing coagulants, flocculants, and disinfectants:
In the water treatment process, in order to remove suspended solids, colloidal substances, and microorganisms from water, coagulants (such as alum), coagulants (such as polyacrylamide), and disinfectants (such as chlorine gas or sodium hypochlorite) need to be added. Agitator can uniformly and quickly mix these chemical reagents with water, promote coagulation and flocculation, and evenly distribute disinfectants. This helps to improve the treatment efficiency of water quality and ensure that the effluent meets the standard.
(2) Improve processing efficiency:
By precisely controlling the stirring speed and stirring time, the agitator can optimize the chemical reaction conditions and accelerate the processing process. At the same time, the contactless mixing method avoids the pollution problems that traditional mixing may bring, ensuring the purity of water quality.
2. Application in Soil Testing
(1) Preparation of soil suspension:
In soil analysis, it is often necessary to prepare soil samples into suspensions for chemical element detection, microbial community analysis, or soil texture assessment. A agitator can effectively mix soil particles with an appropriate amount of solvent (such as water or specific chemical reagents) to form a uniform suspension. This will facilitate the smooth progress of subsequent analysis steps and improve the accuracy and reliability of the analysis results.
(2) Promote chemical reactions and biological processes:
In some soil tests, such as measuring enzyme activity or microbial degradation ability in soil, it is necessary to simulate natural processes in soil. Agitator can promote chemical reactions or biological processes between soil samples and reagents by controlling stirring conditions, thereby more accurately assessing the health status and ecological functions of soil.
Organic synthesis reactions often involve complex molecular structures and variable reaction conditions, so precise control of the mixing state of reactants is crucial to ensure the success of the reaction. Agitator through its unique stirring mechanism, ensures that the reactants are uniformly mixed in all directions within the reaction vessel, avoiding potential side reactions or incomplete reactions caused by local concentration differences. This uniform mixing state facilitates sufficient contact and collision between reactants, thereby increasing reaction rate and yield. Laboratory agitator play an important role in water and soil analysis in environmental science laboratories. It can not only improve the efficiency and accuracy of the analysis process, but also help protect the environment and safeguard human health. With the continuous deepening of environmental science research and advances in technology, it is believed that magnetic stirrers will be widely used in more fields.
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