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A peristaltic pump, also commonly known as a roller pump, is a type of positive displacement pump used for pumping a variety of fluids. The fluid is contained in a flexible tube fitted inside a circular pump casing. Most peristaltic pumps work through rotary motion, though linear peristaltic pumps have also been made.
The company was founded by Jerry Cole and John Parmer in 1955 and took up shop in a 1,200-square-foot (110 m 2) loft on West Illinois Street in downtown Chicago. [2] In the 1960s, Cole-Parmer acquired Masterflex peristaltic pumps, followed shortly by the purchases of Gilmont Instruments and Manostat Pumps.
Dispensers used in laboratories are also frequently connected to microcontrollers to regulate the speed and volume of the medium as it leaves the pump. Laboratory media dispensers may include the following, among others: floating piston designs, syringe pumps, peristaltic pumps, pipettes or pipettors, and pressure injection cells.
Schwabach, Germany. Heidolph Instruments, founded in 1938 [7] as a manufacturer of precision drive motors and engineering, is a manufacturer of laboratory equipment specializing in rotary evaporation, shakers, overhead stirrers, peristaltic pumps and magnetic hotplate stirrers.
Many formulations of Tygon can be used in peristaltic pumps, including the following: Tygon R-3603 Laboratory Tubing is commonly used in chemical laboratories. It is often used in incubators and as a replacement for rubber tubing for Bunsen burners. This material is produced in vacuum sizes and can withstand a full vacuum at room temperature.
A sample is injected into a flowing carrier solution stream that is forced by a peristaltic pump. The injection of the sample is done under controlled dispersion in known volumes. The carrier solution and sample then meet at mixing points with reagents and react. The reaction time is controlled by a pump and reaction coil.
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