Bagian-Bagian Dan Fungsi Dari Mikropipet

Find out the Functions and Parts of Micropipets in the Chemistry Labor

Micropipette functions actually have the same function as ordinary pipettes. The function of this micropipette is to move the solution or liquid from one place to another. Basic pipettes are basically used in the smallest volume of 1 milli liter, while the micropipette is usually used in volumes under 1 milli liter.

History of micropipettes

The micropipette was first discovered in 1957 by a postdoctoral student, named Heinrich Schnitger at the university of Marburg, Germany. At that time, Heinrich Schnitger was frustrated because he repeatedly moved small volumes of liquid using a pipette. Because of his frustration, Heinrich developed a prototype micropipette in the form of a spring plate, and at the end was equipped with a tip made from plastic which is very easy to remove. The function of this tip is to temporarily store liquids, which will later be transferred to other glassware or containers.

The existing micropipette was developed from a prototype, which was previously made by Hendrich Schnitger. What you need to know is, the pipette design was patented in 1957. The micropipette design that you often encounter today looks more elegant, effective, and simple. The design is a revolution in handling small volumes of liquid. In addition, the use of micropipets has been widespread and has been used in various fields, ranging from medicine, biochemistry, molecular medicine, and to being a device that has been widely used in biology.

Types of micropipettes

Based on its volume, micropipettes consist of 3 types, which are generally used, ranging from P20, P200, to P1000. The P20 micropipette can measure volumes between 0.02 and 0.7 ounces. The topmost digit of P20 shows the number tens, the center shows the unit number, while the bottom shows the decimal number. The P200 micropipette can measure volumes in the range of 0.7 and 6.8 ounces. While the P1000 micropipette is a micropipette that has a larger size. Typically, the P1000 micropipette is used to measure liquids ranging in volume from 3.4 to 33.8 ounces.

Parts of the micropipette and its functions

Micropipette is a device used to move a small amount of solution accurately. The parts and functions of the micropipette are as follows:

Plunger button

This one part moves up when released, and down when pressed. The function of the plunger button is to measure the quantity of air that has been withdrawn, then exhaled liquid volume, and removed by the pipette tip. At the top of the plunger button is a number that shows the minimum and maximum capacity of the micropipette you are using.


The function of the shaft is as a place to attach the ejector arm handle, which then connects between the micropipette and plastic tip.

Volume adjustment knob

For this part, it functions to regulate the volume of liquid to be transferred.

Plastic tip

Its function is to collect liquid during the process of withdrawing liquid volume until it will be transferred. The size will be adjusted to the volume of liquid transferred and the capacity of the micropipette.

Ejector arm

This section serves to push the plastic tip so that it is separated from the micropipette.

Tip ejector button

Serves to release or eject the plastic tip when finished using it or as a replacement for the tip tip.

Well, for those of you who want to know more about this micropipette, then one of the things that is very important to know is the function of the micropipette.

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