77 resultados para ORGANIC BASES


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L'objectif de cette étude est d'évaluer l'adéquation des messages publicitaires sur les médicaments parus en 2007 dans quatre journaux destinés aux professionnels de la santé ("Praxis", "Forum médical suisse", "Bulletin des médecins suisses" et "Revue médicale suisse") avec les évidences basées sur les preuves de l'EBM et des normes législatives ainsi que de vérifier s'ils sont supportés par les références bibliographiques mentionnées. Méthode: les messages publicitaires des cinq grands groupes thérapeutiques (à savoir: anti-ostéoporotiques/arthrosiques, antidépresseurs, antihypertenseurs, AINS et hypolipémiants) sont évalués sur [ces] trois critères. [Auteure, p. 5]

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This study aimed at comparing the efficiency of various sampling materials for the collection and subsequent analysis of organic gunshot residues (OGSR). To the best of our knowledge, it is the first time that sampling devices were investigated in detail for further quantitation of OGSR by LC-MS. Seven sampling materials, namely two "swab"-type and five "stub"-type collection materials, were tested. The investigation started with the development of a simple and robust LC-MS method able to separate and quantify molecules typically found in gunpowders, such as diphenylamine or ethylcentralite. The evaluation of sampling materials was then systematically carried out by first analysing blank extracts of the materials to check for potential interferences and determining matrix effects. Based on these results, the best four materials, namely cotton buds, polyester swabs, a tape from 3M and PTFE were compared in terms of collection efficiency during shooting experiments using a set of 9 mm Luger ammunition. It was found that the tape was capable of recovering the highest amounts of OGSR. As tape-lifting is the technique currently used in routine for inorganic GSR, OGSR analysis might be implemented without modifying IGSR sampling and analysis procedure.