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Статті в журналах з теми "Matières plastiques – toxicité"
Lafon, D., and R. Garnier. "Toxicité des produits de dégradation thermique des matières plastiques." EMC - Pathologie professionnelle et de l 'environnement 3, no. 1 (January 2008): 1–12. http://dx.doi.org/10.1016/s1155-1925(08)71847-0.
Повний текст джерелаДисертації з теми "Matières plastiques – toxicité"
Leguy, Isabelle. "Evaluation de la toxicité des emballages plastiques destinés au contact avec les aliments à l'aide de migrats d'emballage obtenus à partir de liquides simulateurs." Dijon, 1997. http://www.theses.fr/1997DIJOS010.
Повний текст джерелаSongue, Same Olivier. "Dynamique des usages des récipients plastiques et étude du transfert des bisphénols et phtalates vers les matrices alimentaires." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILS010.
Повний текст джерелаPlastic containers are either food or non-food grade. The food grade containers are used under the well-regulated conditions by various developed countries, to ensure that the pollutants cannot diffuse into food. In Africa and Cameroon in particular, this regulation does not exist. In addition, it is an area of great smuggling, and the use of non-food grade containers in the preservation of food is practiced. Plastics are made up of long polycarbon chains called polymers whose good mechanical, electrical and thermal properties come from the addition of additives during their formulation. Among these additives, bisphenols and phthalates are used respectively as antioxidants and plasticizers. These molecules have been recognized as dangerous for human health because they are endocrine disruptors and are involved in many cancers. The main route of entry of these molecules into humans is food. Their migration from plastic containers to food is facilitated by storage conditions, processing methods and the nature of food. The objective of this work is to study the transfer of bisphenols and phthalates from plastic containers to food matrices. It was a question of identifying the risks of human contamination by plastic containers through a survey of households and industries. Then, the evaluation of the exposure of the population went through the development of a method based on liquid chromatography-tandem mass spectrometry to quantify these molecules in food matrices. Finally, the study of the transfer of phthalates from paint buckets to food was carried out via experimental design and the kinetic study. This work showed that 36.5% of households used old paint buckets in food, and this use did not depend on social class. Derivatization methods followed by liquid chromatography analysis have proven to be precise and rapid for the quantification of bisphenols (A, B and F) and total phthalates in foods. The estimated dietary daily intake of bisphenols and phthalates through foods remains low in Cameroon. The kinetic study revealed that the migration of phthalates is best described by the pseudo-second-order model and depends mainly on temperature, contact time, and pH. These parameters present significant interactions
Lago, Wowro Rosine Sonia. "Etude du vieillissement des copolymères d'éthylène et de norbornène." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS556/document.
Повний текст джерелаThe aim of this thesis work was to study different ages of copolymers of ethylene and norbornene (ENC), used as packaging of pharmaceutical products. Thanks to the analytical strategy adopted using different characterization techniques, such as separation techniques such as size exclusion chromatography, reverse phase high performance liquid chromatography, spectral techniques including infrared spectroscopy transforming of Fourier and UV spectroscopy, thermal analysis techniques through thermogravimetric analysis and differential scanning calorimetry, and then a toxicity study of degradation products, we were able to highlight different types of modifications in the volume of the material after aging. The main modification in the bulk of the material, observed at the prescribed sterilization dose (25 kGy), is the cleavage of the polymer chains, which is accompanied by the creation of compounds with low molar masses, and therefore potential migrants, which are likely to influence ENC job security. Then for high doses of radiation (150 kGy) and for 500h UV exposure, there is the crosslinking of the chains. The presence of the additive (the phenolic antioxidant Irganox 1010®) prevents the creation of MBMM after aging. However, in the absence of an additive, aging generates new CBMMs. However, the toxicity study shows some toxicity at 150 kGy of the ENC
Книги з теми "Matières plastiques – toxicité"
International Agency for Research on Cancer., ed. Some chemicals used in plastics and elastomers. Lyon, France: International Agency for Research on Cancer, 1986.
Знайти повний текст джерелаvan, Esch G. J., WHO Task Group on Environmental Health Criteria for Flame Retardants: a General Introduction., United Nations Environment Programme, International Labour Organisation, World Health Organization, Inter-Organization Programme for the Sound Management of Chemicals., and International Program on Chemical Safety., eds. Flame retardants: A general introduction. Geneva: World Health Organization, 1997.
Знайти повний текст джерелаVinyl chloride. Geneva: World Health Organization, 1999.
Знайти повний текст джерелаVinyl Chloride, 1999 (Environmental Health Criteria). World Health Organization, 2000.
Знайти повний текст джерелаFlame Retardants: A General Introduction (Environmental Health Criteria). World Health Organization, 1997.
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