A multitude of activities such as blending, weighing, freezing, heating, drying, etc. are performed in various research and testing laboratories for varied determinations. Utilizing the correct laboratory apparatus and lab chemicals increases the probability of successful accomplishment of the scientific objectives. It is highly appreciated to be well acquainted with the advantages and limitations of each of the different lab equipments like metal thermometers, chemical weighing balance, vortex mixer, lab hot plate, etc. For instance, blending, mixing, agitating, stirring, dissolving can be performed using either a magnetic stirrer or an overhead stirrer.
Magnetic Stirrer Serve Multiple Purposes
Unlike the overhead stirrer which uses an electrically operated agitator dipped in the liquid medium, the magnetic stirrer uses a magnetic field generated via the passage of the electric current. Magnetic stirrers are available with a variety of features, based upon which their utility is highly cherished and are classified as under-
Regular Magnetic Stirrer- Made up of either ceramic or stainless steel or aluminium top plate containing a magnetic bar that produces a rotating magnetic field. This stirring bar (coated with Polytetrafluoroethylene) placed in the liquid moves under the action of the rotating magnetic field.
Hot Plate Magnetic Stirrer- It is akin to the regular magnetic stirrer with an added feature providing heat to the sample to be stirred.
Multi-Position Magnetic Stirrer- As the name suggests, it consists of a single top plate upon which we can place more than one sample at different positions.
Key Benefits
Having discussed the types of Magnetic stirrers, it is evident they add high value to a laboratory along with the following key benefits-
1. It can operate consistently for long hours and prevents the chances of pathological contamination by stirring the sample with a stirring bar.
2. Magnetic stirrers are available in different capacities (i.e. the volume of liquid) to stir liquids with varying viscosity. It enables the users to decide which one will be most suitable for their needs.
3. The built-in software-driven operation gives the user liberty to control the operation of the stirrer.
4. It offers both digital and analog control systems that provide high precision in setting the temperature, speed (rotating magnetic field), and duration of its operation.
5.. Magnetic stirrers have smooth accelerating features which prevents the chance of jerks and spilling of the liquid mixture.
Magnetic stirrers are extremely beneficial and economical to be deployed in laboratories. Taking cognizance of the same, the Valence lab is actively supplementing the enhancement and up-gradation of existing ones based upon the customer feedback. It is actively encouraging the manufacture, sale, and distribution of magnetic stirrers of different types which are being used extensively for various chemical, biological, and physics experiments
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