Tri-phase Cleaning
Tri-phase Cleaning - Related Videos
07:30
Cleaning Glassware
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2023
Source: Vy M. Dong and Daniel Kim, Department of Chemistry, University of California, Irvine, CA Organic synthesis is about transforming a readily available reagent into a more valuable product. Having clean glassware is crucial for the efficiency of this process. Dirty glassware can potentially affect the reaction and make isolation of the final product more challenging. Thus, a synthetic chemist must keep the glassware spotless. The methods described here will detail different glass cleaning...
04:57
Proper Care and Cleaning of the Microscope
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Cited by 2 •
2008
Keeping the microscope optics clean is important for high-quality imaging. Dust, fingerprints, excess immersion oil, or mounting medium on or in a microscope causes reduction in contrast and resolution. DIC is especially sensitive to contamination and scratches on the lens surfaces. This protocol details the procedure for keeping the microscope clean.
01:30
Cleaning, Sterilization, and Disinfection
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2023
Cleaning, disinfection, and sterilization are the methods that help to break the infection chain and prevent disease. Cleaning The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
02:39
Phase Diagrams
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2020
A phase diagram combines plots of pressure versus temperature for the liquid-gas, solid-liquid, and solid-gas phase-transition equilibria of a substance. These diagrams indicate the physical states that exist under specific conditions of pressure and temperature and also provide the pressure dependence of the phase-transition temperatures (melting points, sublimation points, boiling points). Regions or areas labeled solid, liquid, and gas represent single phases, while lines or curves represent...
02:31
Phase Transitions
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2020
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to occupy...
FAQs
The sequence determines how contaminants are progressively addressed without exposing the material to an unsuitable condition for too long. Solvent action can target residues that aqueous rinsing may not remove, while rinsing can displace remaining material before drying eliminates moisture. Preserving this order helps reduce carryover between stages and supports a more consistent surface for later processing or measurement.
Exposure time controls how long each cleaning condition can act on the surface, while agitation helps dislodge or redistribute contaminants during treatment. Excessive or insufficient control of either variable can change the result, especially when residues, particles, or organic films are present. Matching these conditions to the material helps improve cleanliness while limiting the risk of surface damage.
These contaminants can alter the surface properties that an experiment, fabrication step, or measurement depends on. Organic films and particles may interfere with adhesion, whereas remaining moisture can affect subsequent processing or measurements. Removing different contamination types through separately controlled stages helps reduce unwanted variation and improves the reproducibility of device, substrate, optical-component, and other experimental-system performance.
A typical workflow applies a solvent-based condition, follows with an aqueous rinsing stage, and ends with drying. The operator controls the order, exposure time, and agitation during treatment, then gives particular attention to moisture removal in the final stage. This workflow is intended to address residues and particles sequentially while preparing the surface for the next experimental or fabrication step.
The method is useful whenever surface condition can influence adhesion, measurement accuracy, or reproducible device performance. Researchers may apply it before a physics experiment, fabrication step, or measurement involving substrates, devices, optical components, or related experimental systems. Its value is greatest when particles, organic films, or moisture could introduce differences between samples or interfere with the intended process.
Drying removes moisture left after the solvent and aqueous stages, completing preparation of the surface for subsequent use. Inadequate drying can leave moisture that alters surface properties or affects a later fabrication step or measurement. Careful control of this final condition therefore contributes to reliable adhesion, accurate results, and more reproducible performance across experimental systems.