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**Laboratory Pipettes: A Must-Have for Any Lab**

Laboratory pipettes are essential tools for any lab, from the smallest school science lab to the largest research facility. They come in a variety of sizes and shapes, and are used to measure and transfer liquids.

**Types of Pipettes**

There are two main types of pipettes: volumetric pipettes and serological pipettes. Volumetric pipettes are used to measure a specific volume of liquid, while serological pipettes are used to deliver a range of volumes.

**Volumetric Pipettes**

Volumetric pipettes are calibrated to deliver a specific volume of liquid, and are typically used for more precise measurements. They are available in a variety of sizes, from 1 mL to 100 mL.

Serological Pipettes

Serological pipettes are not calibrated to deliver a specific volume of liquid, but rather a range of volumes. They are typically used for less precise measurements, such as when diluting a solution or adding a reagent to a reaction.

**How to Use a Pipette**

Using a pipette is a simple process, but it is important to follow the correct steps to avoid contamination and errors.

1. **Select the correct pipette for the volume of liquid you need to measure or transfer.**
2. **Hold the pipette vertically with the tip just above the surface of the liquid.**
3. **Draw up the liquid until the meniscus (the curved surface of the liquid) is level with the calibration mark on the pipette.**
4. **Eject the liquid into the desired container by releasing the pressure on the pipette bulb.**

**Safety Tips**

When using pipettes, it is important to follow these safety tips to avoid contamination and injuries:

* Always wear gloves when handling pipettes.
* Never pipette by mouth.
* Rinse pipettes thoroughly with deionized water after each use.
* Store pipettes in a clean, dry place.

**Conclusion**

Laboratory pipettes are essential tools for any lab. They are available in a variety of sizes and shapes, and are used to measure and transfer liquids. By following the steps outlined in this article, you can safely and effectively use pipettes in your lab.

Disclaimer:

The information in this article is for informational purposes only and is not intended to be a substitute for professional advice.
Before making any important decisions, you should consult with a qualified professional in the relevant field.
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