Filtration Block
Filtration Block - Related Videos
01:32
Filtration and Urine Formation
0 Views •
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,...
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...
13:21
Chemically-blocked Antibody Microarray for Multiplexed High-throughput Profiling of Specific Protein Glycosylation in Complex Samples
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Cited by 6 •
2012
In this study, we describe an improved protocol for a multiplexed high-throughput antibody microarray with lectin detection method that can be used in glycosylation profiling of specific proteins. This protocol features new reliable reagents and significantly reduces the time, cost, and lab equipment requirements as compared to the previous procedure.
10:58
Isolation of Fecal Bacteria from Water Samples by Filtration
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2023
Source: Laboratories of Dr. Ian Pepper and Dr. Charles Gerba - The University of Arizona Demonstrating Author: Luisa Ikner The quality of water destined for use in agricultural, recreational, and domestic settings is of great importance due to the potential for outbreaks of waterborne disease. Microbial agents implicated in such events include parasites, bacteria, and viruses that are shed in high numbers in the feces of infected people and animals. Transmission to new and susceptible hosts may...
FAQs
Separation depends on the filter medium’s porous structure and the driving condition applied to the sample. Pores retain solid particles while liquid or gas moves through, producing a retained fraction and a filtrate. In chemistry, this distinction lets the same setup clarify a solution, isolate a precipitate, or prepare a sample without changing the basic separation principle.
Gravity, pressure, and vacuum provide different ways to move a sample through the filter medium. Gravity supports straightforward filtration, while pressure or vacuum can drive passage through the porous material under an applied force. The selected condition depends on the intended workflow, such as clarifying a solution, collecting a precipitate, or preparing material for analysis.
A manifold can direct several samples into separate collection vessels within the same organized setup. This parallel arrangement supports more efficient processing while keeping the resulting filtrates associated with their individual samples. In chemistry workflows, that organization can improve consistency and handling when multiple mixtures require filtration during one experimental sequence.
Place the appropriate filter medium and filtration vessel in the block, then introduce the chemical sample so it contacts the porous material. Apply gravity, pressure, or vacuum as appropriate, and collect the passing filtrate in a designated vessel while retaining the solid fraction. The separated material can then be used for washing, clarification, or analysis.
Chemists can use the setup after a precipitate forms, allowing the solid to remain on the filter while liquid passes through. Additional washing can remove unwanted liquid components from the retained material, while the filtrate is collected separately. This makes the arrangement useful when a workflow requires both a cleaner solid fraction and controlled collection of the liquid.
Filtration blocks organize filtration vessels and collection vessels, reducing the need to manage each sample as an entirely separate arrangement. Their parallel format can improve workflow efficiency and consistency while supporting the removal of precipitates or clarification of solutions. They also contribute to safer handling by keeping sample flow and collection organized during preparation for analysis.