Liquid Flow
Liquid Flow - Related Videos
09:21
Efficiency of Liquid-liquid Extraction
0 Views •
2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA Liquid-liquid extraction (LLE) is a separation technique used instead of distillation when either: (a) the relative volatilities of the compounds to be separated are very similar; (b) one or more of the mixture components are temperature sensitive even near ambient conditions; (c) the distillation would require a very low pressure or a very high distillate/feed...
06:25
Post Column Derivatization Using Reaction Flow High Performance Liquid Chromatography Columns
0 Views •
Cited by 10 •
2016
A protocol for the use of reaction flow high performance liquid chromatography columns for methods employing post column derivatization (PCD) is presented.
10:52
Radiolabeling and Quantification of Cellular Levels of Phosphoinositides by High Performance Liquid Chromatography-coupled Flow Scintillation
0 Views •
Cited by 21 •
2016
Phosphoinositides are signaling lipids whose relative abundance rapidly changes in response to various stimuli. This article describes a method to measure the abundance of phosphoinositides by metabolically labeling cells with 3H-myo-inositol, followed by extraction and deacylation. Extracted glycero-inositides are then separated by high-performance liquid chromatography and quantified by flow scintillation.
13:38
Synthesis of Biocompatible Liquid Crystal Elastomer Foams as Cell Scaffolds for 3D Spatial Cell Cultures
0 Views •
Cited by 9 •
2017
This study presents a methodology to prepare 3D, biodegradable, foam-like cell scaffolds based on biocompatible side-chain liquid crystal elastomers (LCEs). Confocal microscopy experiments show that foam-like LCEs allow for cell attachment, proliferation, and the spontaneous alignment of C2C12s myoblasts.
09:32
Solid-Liquid Extraction
0 Views •
2023
Source: Laboratory of Dr. Jay Deiner — City University of New York Extraction is a crucial step in most chemical analyses. It entails removing the analyte from its sample matrix and passing it into the phase required for spectroscopic or chromatographic identification and quantification. When the sample is a solid and the required phase for analysis is a liquid, the process is called solid-liquid extraction. A simple and broadly applicable form of solid-liquid extraction entails combining the...
FAQs
Viscosity and channel geometry strongly influence the flow rate and the way a liquid moves. Viscosity describes resistance to flow, while geometry determines the available path and space for movement. Changing either variable can alter whether motion remains orderly or becomes more complex. In chemical systems, controlling these factors helps maintain predictable transport during experiments and process design.
Laminar flow occurs when liquid moves in orderly layers, whereas turbulence can arise at higher velocities and produces more complex motion. This distinction matters because turbulence can enhance mixing, while laminar conditions preserve a more structured movement pattern. Selecting or maintaining an appropriate velocity therefore affects how uniformly solutions mix and how reproducibly chemical processes proceed.
Pressure differences, gravity, and surface tension can each drive or influence movement, but their effects are not identical. Pressure differences move liquid between regions, gravity contributes a directional force, and surface tension can affect the motion of liquid. Identifying which force dominates helps chemists interpret flow behavior and choose suitable conditions for a particular system.
Flow rate is a central quantity to measure and control because it describes how quickly liquid moves through a system. Keeping it consistent improves experimental reproducibility and helps researchers compare results across runs. Monitoring flow also supports deliberate control of heat and mass transfer, which is important when designing laboratory or industrial chemical systems.
In chromatography and related separation processes, controlled movement of liquid through the system supports the transport of chemical mixtures and enables the process to be operated consistently. Flow conditions become part of the experimental design rather than a background detail. Measuring them helps researchers reproduce separations and evaluate how system conditions affect performance.
Microfluidic analysis depends on controlling liquid movement in small chemical systems. Flow behavior helps researchers manage transport and mixing while working with limited channel dimensions. Because channel geometry, viscosity, and flow rate affect outcomes, measuring and controlling these variables can improve reproducibility and support the design of efficient analytical systems.
During solution preparation, controlled movement can help produce consistent mixtures. In reaction engineering, flow conditions influence transport and the design of systems in which chemical reactions occur. These applications show why flow rate, viscosity, and channel geometry must be considered together: their interaction affects reproducibility and can support more efficient laboratory or industrial processes.