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Whole Foods may end up cross-contaminating other stores with the labeling system, drawing even more attention to the company's large selection of health-conscious -- and high-margin -- products.
Within the sciences, the word "contamination" can take on a variety of subtle differences in meaning, whether the contaminant is a solid or a liquid, [3] as well as the variance of environment the contaminant is found to be in. [2] A contaminant may even be more abstract, as in the case of an unwanted energy source that may interfere with a process. [2]
Contamination of the site is also cited as a problem, since different taggants might be present at a crime scene from, for example, explosives used to obtain the building materials. Switzerland passed a law in 1980 requiring taggants in explosives manufactured there, and that the code must be changed every six months. So far it is the only ...
Current good manufacturing practices (cGMP) are those conforming to the guidelines recommended by relevant agencies.Those agencies control the authorization and licensing of the manufacture and sale of food and beverages, [1] cosmetics, [2] pharmaceutical products, [3] dietary supplements, [4] and medical devices. [5]
The latter prevents cross-contamination and stationary phase degradation due to recycling. Column chromatography can be done using gravity to move the solvent, or using compressed gas to push the solvent through the column. A thin-layer chromatograph can show how a mixture of compounds will behave when purified by column chromatography. The ...
A mix-up rated as contamination could in reality be a simple confusion of two cell lines, but usually contamination is assumed. [ citation needed ] After a cell line has been discovered to be contaminated, it is usually never used again for research demanding the specific type of cell line they were assumed to be.
Once a line is generated, all progeny will be germ-free unless contaminated. These progeny can then be used for experimentation. Typically for experiments, each mouse is housed separately in a sterile isolator to prevent cross-contamination between mice. The mice are provided with sterilized food and water to prevent contamination.
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