A Cheap Solution for Chemical and Biological Laboratories
Laboratories are one of the essential facilities where science research is realized. To undertake various sorts of experiments in a laboratory, several tools and equipment would be needed by classified typechemistry or genetics laboratories. Some examples of an instrument are the pasteur pipette, which is used as a tool to transfer sample liquids between two containers by allowing them to suck up small samples with rubber material.
Although glass pipettes have been the traditional choice, plastic pasteur pipettes are also available and they offer a low-cost alternative. Regarding price, the plastic pipette costs much less than glass. Pipettes are used extensively in scientific experiments, particularly those within biology and chemistry; therefore, it is likely they will need to be replaced sooner rather than later.
The immediate cost savings associated with the use of plastic pipettes can save a lab significant funds in the long run. In addition, plastic pipettes are typically regarded as single-use to help prevent any contamination between the experiments.
What is Best for your Lab?
Whether to use glass or plastic pasteur pipettes is often hotly debated, so this one comes down to personal preference. But there are a few things to consider before you decide for your lab. Although not as accurate, glass pipettes perform well in this area - they are calibrated for the correct measurement of liquids. But plastic pipettes are generally calibrated to assure accurate dispensing of liquids.
In addition, plastic pipettes are not as easy to break and may be used by novice or student lab technicians. One of the other determinations that probably lean towards plastic pipettes is safety. They break easily if made of glass so they go to waste and have the potential for injury/contamination.
As scientists, we need to think about the impact of our research on the environment. The popularity of plastic pipettes has grown over the years but recent questions regarding their environmental impact have surfaced. Because of that, they also contribute to the global plastic waste problem which is staggering and growing throughout the world since mostly are seen as single-use items.
Nonetheless, there are actions that can be taken towards lowering their environmental footprint. For example, labs could choose biodegradable or compostable plastic pipettes that are reusable/recyclable or implement a program to recycle them. Moreover, recycling only plastic pipettes already sterilized in such a way for the next experiment will greatly contribute to saving plastic waste.
Probably everyone is familiar with the use of a pasteur pipette, transferring one liquid to another... At least. Following are some innovative ways of using the plastic pasteur pipettes in your laboratory:
Used for accurate mixing of reagents in liquid chromatography applications
For cleaning the interior of laboratory glassware, such as small or narrow vessels
Ideal for the accurate filling of liquids into microtitre plates
Great for injecting some solvents into chemical reactions
Serve as suction pumps in small vacuum laboratory applications
For dosing samples with liquids in the course of spectrophotometry
For example, to transfer small samples of cells or bacteria from one culture dish to another
Ideal for very subtle touch-ups to the response of the produced product
A great means of transferring small quantities of staining solutions to slides
Choosing the right plastic pasteur pipette is no simple matter - you need to consider precision, sterility, liquid volume, and if your sample would be a good match for this specific type of pipette or not.
If your experiment needs precise measurements, choose tip pipettes with narrow tips and fine graduations. In contrast, if accuracy is not the most important thing in your work (or preparative pipetting), you could go for larger tip and graduation sizes on these graduated cylinders.
Last but not least, in the world of biology experience has told us that pipettes have to be sterile... tribology inclusive! Use pre-sterilized pipettes or sterilize them by simple methods before using.
The other important aspect that you need to bear in in mind while picking a pipette is the volume capacity. Use a pipette that performs the measurements in one step to guarantee reproducible results of the experiment. The last tip: When buying a pipette, also consider the chemical compatibility of the material with your sample. Certain chemicals may react badly with some pipette materials.
To conclude, they are a cheap and long-lasting solution to the problems of conducting scientific experiments in labs. They can be utilized for different purposes as well, and the damage from the working environment can likewise be reduced by presenting a sound pipette reusing program or utilizing plastic items that are biodegradable/chemical resistant. The sterile pipette must have the required preciseness, volume capacity, and compatibility regarding the chemicals in which your sample is suspended or dissolving (you are studying) to arrive at accurate results.
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