Filtration Equipment
Filtration Equipment - Related Videos
01:32
Filtration and Urine Formation
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2019
The function of the kidneys is to filter, reabsorb, secrete, and excrete. Every day the kidneys filter nearly 180 liters of blood, initially removing water and solutes but ultimately returning nearly all filtrates into circulation with the help of osmoregulatory hormones. This process removes wastes and toxins but is also crucial to maintain water and electrolyte levels. Most of these functions are performed by the tiny but numerous nephrons contained within the kidneys. Blood enters the renal...
01:26
Glomerular Filtration: Net Filtration Pressure
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2025
Glomerular filtration, a key process in the kidneys, is regulated by three main pressures: Glomerular blood hydrostatic pressure (GBHP), Capsular hydrostatic pressure (CHP), and Blood colloid osmotic pressure (BCOP). GBHP, with an average value of 55 mmHg, promotes filtration by pushing water and solutes through the filtration membrane. This is balanced by two opposing forces: CHP, a "back pressure" exerted against the filtration membrane by fluid already in the capsular space and renal tubule,...
06:20
Proper Operation of Vacuum Based Equipment
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2023
Source: Robert M. Rioux, Ajay Sathe & Zhifeng Chen, Pennsylvania State University, University Park, PA Vacuum is required for a number of laboratory procedures. This is most routinely achieved in the laboratory by the use of vacuum pumps. In addition to working at low pressures, vacuum pumps can also be used to enable rapid changing of the atmospheres in a reactor or flask by evacuation and backfilling.
10:17
Preparing Anhydrous Reagents and Equipment
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2023
Source: Laboratory of Dr. Dana Lashley - College of William and Mary Demonstrated by: Timothy Beck and Lucas Arney Many reactions in organic chemistry are moisture-sensitive and must be carried out under careful exclusion of water. In these cases the reagents have a high affinity to react with water from the atmosphere and if left exposed the desired reaction will not take place or give poor yields, because the reactants are chemically altered. In order to prevent undesired reactions with H2O...
00:53
Filtration
0 Views •
2024
Filtration is a physical separation process that involves passing a suspension through a porous medium to separate solids from fluids. During filtration, solids collect on the porous medium while liquids, also collectively known as the filtrate, pass through. The filtration medium is selected based on the filtration purpose, quantity, and nature of the precipitate. The general criteria for a suitable filtering medium are that it is inert, mechanically strong, nonabsorbent toward dissolved...
FAQs
Retention depends on the relationship between suspended material and the filter’s pore size, as well as the filter’s other properties. A suitable pore size can retain cells, microorganisms, or debris while allowing the surrounding fluid to pass. Choosing pores that are poorly matched to the target may reduce separation quality or unnecessarily affect sample processing, so size selection directly influences downstream sample integrity.
Filtration equipment can use gravity, pressure, or vacuum to move a biological fluid through the filter. These driving conditions determine how flow is initiated and maintained, while the filter retains material according to its properties. The choice of driving force is therefore part of operating the system, particularly when preparing, clarifying, or processing biological samples.
Filter material is an important selection variable because retention depends not only on pore size but also on the filter’s properties. In biological work, this matters when the goal is to retain suspended particles, cells, microorganisms, or culture debris without compromising the sample. Matching material and pore characteristics to the intended separation supports more reliable downstream analysis.
Selection begins with the material that must be removed or retained and the condition required for the resulting fluid. Preparing a sample, clarifying a culture, separating cells or microorganisms, and handling a sterile solution can require different choices of filter material, pore size, and operating conditions. Defining the task first helps align filtration with the intended downstream use.
A basic workflow is to identify the particles, cells, microorganisms, or debris that should be retained, then select an appropriate filter material and pore size. The fluid is directed through the filter using gravity, pressure, or vacuum. The resulting preparation can then support later biological processing or analysis, provided the selected conditions protect sample integrity.
Biological researchers can apply filtration equipment during sample preparation, clarification, and processing. It can help remove debris from cultures, separate cells or microorganisms, and support sterile solution handling. These uses make filtration relevant wherever a biological fluid must be prepared for a subsequent procedure or analysis while controlling which suspended material remains in the sample.
Filter material, pore size, and operating conditions influence which components remain in the processed fluid and which are retained. Appropriate choices help protect sample integrity and produce a preparation suited to its intended use. In turn, better-controlled preparation can improve the reliability of downstream analyses, whereas a poorly matched setup may compromise the separation or the sample.