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Federal government websites often end in. Before sharing sensitive information, make sure you're on a federal government site. The site is secure. NCBI Bookshelf. An analytical solvent carbon disulfide: N, N -dimethylformamide is used to desorb the chromosorb, and the substance is then measured by gas chromatography with flame ionization detection. Analysis of benzophenone in breakfast cereals has been reported using ultrasonic extraction in combination with gas chromotography-tandem mass spectrometry Van Hoeck et al.
Benzophenone is also produced by atmospheric oxidation of diphenylmethane in the presence of metal catalysts, such as copper naphthenate HSDB, Benzophenone is used as a flavour ingredient, a fragrance enhancer, a perfume fixative and an additive for plastics, coatings and adhesive formulations; it is also used in the manufacture of insecticides, agricultural chemicals, hypnotic drugs, antihistamines and other pharmaceuticals HSDB, Benzophenone is used as an ultraviolet UV -curing agent in sunglasses, and to prevent UV light from damaging scents and colours in products such as perfumes and soaps.
Moreover, it can be added to plastic packaging as a UV blocker, which allows manufacturers to package their products in clear glass or plastic rather than opaque or dark packaging. Benzophenone is widely used as a photoinitiator for inks and varnishes that are cured with UV light.
In addition to being a drying catalyst, benzophenone is an excellent wetting agent for pigments; it can also be used in printing to improve the rheological properties and increase the flow of inks by acting as a reactive solvent. Benzophenone has been reported to occur naturally in food see Section 1. Industrial sectors that entail risks of occupational exposure are painting paints, varnishes and lacquers , the manufacture of plastic composites and the manufacture and use of glues and adhesives.
The National Institute for Occupational Safety and Health conducted the National Occupational Exposure Survey in β, which estimated that, among the establishments surveyed in the USA industry types, employing approximately 1 workers , 41 workers 18 women were potentially exposed to benzophenone NIOSH, Dietary sources of exposure to benzophenone include its natural occurrence in food, its presence as a contaminant in drinking-water, its migration from food packaging and its addition to food as a flavouring.