Plasma Centrifugation
Plasma Centrifugation - Related Videos
07:07
Working with Centrifuges
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2023
Source: Robert M. Rioux & Suprita Jharimune, Pennsylvania State University, University Park, PA Earth's gravitational force is capable of separating heterogeneous mixtures. However, many systems avert this type of separation owing to the length of time usually required in such cases. Centrifugation is one of the most powerful tools for the separation of heterogeneous mixtures1. It involves the application of centripetal force for sedimentation of the heavier phase, leading to separation of...
06:10
A Simple Double Centrifugation Tube Method to Obtain Platelet-rich Plasma from Equine Blood
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Cited by 1 •
2025
Platelet-rich plasma (PRP) is used in the treatment of equine musculoskeletal disorders. Different techniques yield PRP with varying platelet and leukocyte concentrations. This article describes a method for obtaining PRP from horse blood.
01:05
Centrifugation
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2024
Centrifugation is a separation technique based on differences in density or size. It is commonly used to separate solids from aqueous interferents. During centrifugation, the sample is placed in centrifugation tubes and spun at high angular velocity, which allows centrifugal force to act differentially on the different densities or masses of the components. After spinning, the supernatant liquid is decanted. Depending on the specific application, either the pellet or the supernatant is retained...
07:52
An Introduction to the Centrifuge
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2023
The centrifuge is an instrument used in nearly every research lab across the globe. Centrifugation is the process by which a centrifuge is used to separate components of a complex mixture. By spinning laboratory samples at very high speeds, the components of a given mixture are subjected to centrifugal force, which causes more dense particles to migrate away from the axis of rotation and lighter ones to move toward it. These particles can sediment at the bottom of the tube into what’s...
08:42
How to Ignite an Atmospheric Pressure Microwave Plasma Torch without Any Additional Igniters
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Cited by 26 •
2015
This movie shows how an atmospheric plasma torch can be ignited by microwaves with no additional igniters and provides a stable and continuous plasma operation suitable for plenty of applications.
FAQs
Spin speed and duration determine how completely cellular material settles and how many platelets remain in the recovered plasma. Because these settings alter the separation, laboratories must select and reproduce conditions according to whether they need a platelet-rich or platelet-poor fraction. Inconsistent centrifugation can therefore complicate comparisons between samples.
An anticoagulant helps keep collected blood from clotting before the separation step. This matters because clot formation can change which components remain available in the liquid fraction and may interfere with downstream measurements. The choice to collect blood with an anticoagulant should therefore match the intended plasma analysis and processing workflow.
Plasma fractions differ mainly in their platelet content, which depends on the centrifugation conditions used. A platelet-rich preparation retains more platelets, whereas a platelet-poor preparation minimizes them. This distinction is important because the selected fraction determines which circulating components are emphasized during biochemical testing, biomarker measurement, or biological investigation.
Processing begins with blood collection, commonly into a tube containing an anticoagulant, followed by centrifugation under defined speed and time conditions. After spinning, the upper liquid layer is separated from the concentrated cellular material for the intended analysis or fraction preparation. Keeping these conditions consistent supports comparable results across samples.
Researchers and clinicians prepare plasma when they need to examine circulating proteins, metabolites, or other biological factors rather than concentrated blood cells. The fraction supports biochemical testing, disease investigation, and biomarker measurement. Its usefulness extends across routine laboratory analysis and research questions that depend on characterizing components present in the liquid portion of blood.
Standardized handling is central to plasma centrifugation because processing conditions can influence both separation quality and platelet content. Recording and reproducing collection and spin conditions helps preserve sample quality, making measurements more reliable and improving comparisons among specimens. This is especially relevant when investigators track biomarkers or compare samples during disease-related studies.