Description

A magnetic stirrer is a laboratory instrument used for mixing liquids or solutions by creating a rotating magnetic field that causes a magnetic stir bar (also known as a flea) to spin and stir the liquid in a container.

The magnetic stirrer consists of a small motor that rotates a magnetic bar beneath the surface of the liquid, causing the stir bar to spin and create a vortex in the liquid. The speed and direction of the stir bar can be controlled by adjusting the speed and direction of the rotating magnetic field.

Magnetic stirrers are commonly used in chemical and biological laboratories for a variety of applications such as mixing reagents, suspending cells, and dissolving solids. They are also useful for preparing samples for analysis, such as for DNA extraction or protein purification.

Magnetic stirrers come in a range of sizes and configurations, from small desktop models to larger, more powerful units suitable for industrial applications. They are typically equipped with digital speed controls and are compatible with a range of stir bar sizes and shapes to accommodate different sample volumes and viscosities.

The magnetic stirrer is an essential tool for researchers, scientists, and technicians working in fields such as molecular biology, biochemistry, and pharmacology, where precise and efficient mixing is critical for experimental success.