VOLUMETRIC PIPETTES

Volumetric Pipettes

Volumetric pipettes are essential in scientific laboratories because of their ability to accurately measure specific volumes of liquids, which is crucial for a wide variety of analytical applications. Their precise design allows for consistent and reliable measurements, making them irreplaceable tools in procedures requiring high levels of accuracy, from biomedical research to chemical testing. These features make them vital components for successful experiments and analyses in environments where precision is paramount.

What are laboratory volumetric pipettes?

Volumetric pipettes are laboratory instruments specifically designed to dispense an exact volume of liquid, calibrated to release a specific amount with high accuracy. Unlike graduated pipettes, which have markings along the length of the tube to measure and dispense different volumes as needed, volumetric pipettes are optimised for maximum accuracy in a single, specific volume, making them ideal for procedures that require absolute accuracy in the amount of liquid handled.

What are volumetric pipettes used for? Uses

Volumetric pipettes are essential in a variety of scientific and educational contexts because of their ability to handle liquids with precision. In analytical chemistry, they are used for the preparation of standard solutions, ensuring the accuracy necessary for reliable results. In biomedical research, these pipettes facilitate the precise dilution of substances, a critical step in many experimental protocols. They are also fundamental in the calibration of equipment in pharmaceutical laboratories, ensuring that measurements are consistent and accurate. In education, volumetric pipettes are used to teach measurement techniques, providing students with essential practical skills in experimental science.

What material are Pobel volumetric pipettes made of?

Pobel volumetric pipettes are made of soda glass, a material widely valued for its exceptional durability and chemical resistance. This type of glass is ideal for laboratory applications requiring high accuracy in volume measurement due to its stability and resistance to most chemicals. Soda glass not only guarantees the structural integrity of the pipettes under heavy use, but also ensures that there will be no chemical interactions that could alter the composition of the substances being worked with. This property is crucial for maintaining the purity of reagents and samples, avoiding cross-contamination and ensuring reliable and repeatable results in critical analyses and experiments.

How are volumetric pipettes used?

Using a volumetric pipette in the laboratory is a process that requires technique and precision. Depending on the type of pipette, the method may vary slightly, but generally involves the following steps:

1. Aspiration: the tip of the pipette is placed in the liquid and a mechanism (such as a bulb or piston) is used to aspirate the liquid upwards to a specific mark, ensuring that the desired volume is measured.
2. Transfer: Carefully transfer the pipette to the new container and dispense the liquid. The dispensing technique must be controlled to avoid bubbles or spillage, which could affect the accuracy of the measurement.
3. Cleaning: After use, it is essential to clean the pipette properly to avoid cross-contamination between samples or deterioration of the instrument.

This process varies slightly depending on the pipette.

Types of Pobel volumetric pipettes

Pobel offers different volumetric pipettes, each suitable for different needs, these are:

• Class A single flush volumetric pipettes: the Pobel Class A single flush volumetric pipettes are specifically designed to offer extreme accuracy in measuring liquid volumes. Manufactured to ISO 648 in soda glass, these pipettes are ideal for tasks requiring meticulous accuracy. Their design includes a unique gauging mark and they are calibrated for total discharge, ensuring that the amount of liquid aspirated and dispensed is exactly as indicated.
• Class A 2-phrase volumetric pipettes: Pobel's Class A 2-phrase volumetric pipettes are precise tools manufactured to ISO 648 using soda glass to ensure durability and chemical resistance. These pipettes are designed to provide accurate measurement using two calibration marks, making it easy to achieve the precision needed in analytical and experimental procedures where two specific volume points are required. They are ideal for applications that demand high accuracy in the measurement of liquids in scientific and research laboratories.

Why buy volumetric pipettes from Pobel?

Choosing volumetric pipettes from Pobel means opting for quality and precision. Our products are designed to meet the highest standards, ensuring accurate and consistent results, fundamental for research and development in any scientific field.