Surfactant Extraction
Surfactant Extraction - Related Videos
09:34
Extraction and Characterization of Surfactants from Atmospheric Aerosols
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Cited by 26 •
2017
Methods are presented for the targeted extraction of surfactants present in atmospheric aerosols and the determination of their absolute concentrations and surface tension curves in water, including their Critical Micelle Concentration (CMC).
07:20
Lavage-induced Surfactant Depletion in Pigs As a Model of the Acute Respiratory Distress Syndrome (ARDS)
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Cited by 21 •
2016
Repeated pulmonary lavages in anesthetized pigs induce lung injury resembling major aspects of human acute respiratory distress syndrome (ARDS). For this purpose the lungs are repeatedly lavaged with 0.9% saline at 37 °C. The goal of the protocol is a reproducible mitigation of gas exchange and hemodynamics for research in ARDS.
10:28
Experimental Measurement of Settling Velocity of Spherical Particles in Unconfined and Confined Surfactant-based Shear Thinning Viscoelastic Fluids
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Cited by 15 •
2014
This paper demonstrates the experimental procedure to measure terminal settling velocities of spherical particles in surfactant-based shear thinning viscoelastic fluids. Fluids over a wide range of rheological properties are prepared and settling velocities are measured for a range of particle sizes in unbounded fluids and fluids between parallel walls.
02:55
Extraction - Concepts
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2020
Extraction Extraction is a common technique used in organic chemistry to isolate a target compound. In the extraction process, a solute is transferred from one phase to another to separate it from unreacted starting materials or impurities. Extraction is also used to facilitate the isolation of a solute from a reaction solvent that is difficult to remove by evaporation, such as a solvent with a high boiling point. Generally, there are three types of extractions. First, in solid-liquid...
06:42
Extraction of Biomarkers from Sediments - Accelerated Solvent Extraction
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2023
Source: Laboratory of Jeff Salacup - University of Massachusetts Amherst The distribution of a group of organic biomarkers called glycerol-dialkyl glycerol-tetraethers (GDGTs), produced by a suite of archaea and bacteria, were found in modern sediments to change in a predictable manner in response to air or water temperature1,2. Therefore, the distribution of these biomarkers in a sequence of sediments of known age can be used to reconstruct the evolution of air and/or water temperature on...
FAQs
Recovery depends on how strongly a surfactant interacts with the chosen solvent, solid sorbent, or interface. In solvent-based work, the compound partitions, meaning it distributes, between immiscible phases. With a sorbent, it adsorbs to the material and is later released. These interactions determine how effectively the target is separated from wastewater, sediment, or soil for measurement.
The two approaches rely on different interactions. Solvent partitioning moves compounds between immiscible liquid phases, whereas sorbent-based extraction temporarily retains them on a solid material. In either case, a subsequent release step makes the recovered surfactants available for concentration and analysis. The distinction matters because the selected interaction shapes how compounds are separated from the environmental sample.
Recovery and quantitative measurement connect the extraction step to environmental interpretation. If surfactants are not recovered effectively, the resulting measurement may not represent the contamination present in a sample. Reliable values allow researchers to identify contamination, compare remediation strategies, and evaluate treatment technologies, making extraction performance important for water-quality management.
A typical workflow begins with an environmental sample, followed by contact with either an immiscible solvent, a solid sorbent, or an interface that captures or separates the surfactants. The compounds are then released when sorbent-based capture is used, concentrated, and prepared for analysis. This sequence links physical separation with quantitative measurement.
Surfactant extraction can be applied to wastewater, sediment, and soil, so the sample type is central to study design. In wastewater, the method supports monitoring of industrial and household surfactants; in sediment and soil, it helps examine contamination and environmental fate. Using the relevant sample context allows results to inform water-quality assessment and treatment research.
By recovering surfactants for analysis, the method supplies measurements that can be used to assess treatment technologies and compare remediation strategies. Those results also support investigation of environmental fate, including how surfactants may influence contaminant transport and aquatic health. Consequently, extraction connects analytical measurement with broader environmental management and water-quality decisions.