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Depyrogenation refers to the removal of pyrogens from solutions, most commonly from injectable pharmaceuticals.. A pyrogen is defined as any substance that can cause a fever. . Bacterial pyrogens include endotoxins and exotoxins, although many pyrogens are endogenous to the ho
Conservation-restoration is the practice of cleaning and discovering the original state of an object, investigating the proper treatments and applying those treatments to restore the object to its original state without permanently altering the object, and then preserving the object to prevent further deterioration for generations to come (Caple, p. 5-6). [1]
Also known as inherent vice, the intrinsic instability of the fabric and components of an object can lead to its own physical degradation. This is difficult to prevent because it occurs within the fabric of the material and therefore is a natural occurrence. Deterioration of an object can happen even before the object is used. How the piece is ...
If you see estate sale listings with lots of glassware, she says, there's probably a piece or two of uranium glass hiding amongst the others. Whitney Granger’s ring collection. Whitney Granger
Microorganisms growing on an agar plate. Sterilization (British English: sterilisation) refers to any process that removes, kills, or deactivates all forms of life (particularly microorganisms such as fungi, bacteria, spores, and unicellular eukaryotic organisms) and other biological agents (such as prions or viruses) present in fluid or on a specific surface or object. [1]
Silanization (or siliconization) of glassware is a common application that increases the hydrophobicity of a glass container. Thus treated, the glassware produces a flat meniscus and allowing for more complete transfer of aqueous solutions. [2] [8] Silanization of glassware is used in cell culturing to minimize adherence of cells to flask walls ...
Chromic acid is an intermediate in chromium plating, and is also used in ceramic glazes, and colored glass. Because a solution of chromic acid in sulfuric acid (also known as a sulfochromic mixture or chromosulfuric acid ) is a powerful oxidizing agent , it can be used to clean laboratory glassware , particularly of otherwise insoluble organic ...
Dealkalizing glass containers is accomplished by exposing the glass surface to reactive sulfur- or fluorine-containing compounds during the manufacturing process. A rapid ion-exchange reaction proceeds that depletes the inside surface of alkali, and is performed when the glass is at high temperature, usually on the order of 500–650 °C or ...