%A"Contamin, G [Commissariat a l'Energie Atomique, Grenoble (France). Centre d'Etudes Nucleaires]" %D1965 %I; CEA Grenoble, 38 (France); Faculte des Sciences de l'Universite de Grenoble, 38 (France) %2 %J[] %K46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY, ALUMINIUM OXIDES, ARGON, CALIBRATION, CHLORINE, ELECTRIC ARCS, EMISSION SPECTROSCOPY, EXCITATION, FLUORINE, FREQUENCY DEPENDENCE, INERT ATMOSPHERE, PRESSURE DEPENDENCE, QUANTITATIVE CHEMICAL ANALYSIS, SENSITIVITY, SODIUM FLUORIDES, SPECTROPHOTOMETRY %PMedium: ED; Size: 37 pages %TSpectrographic determination of chlorine and fluorine; Dosage du chlore et du fluor par spectrographie d'emission en atmosphere inerte %XExperimental conditions have been investigated in order to obtain the highest sensitivity in spectrographic determination of chlorine and fluorine using the Fassel method of excitation in an inert atmosphere. The influence of the nature of the atmosphere, of the discharge conditions and of the matrix material has been investigated. The following results have been established: 1. chlorine determination is definitely possible: a working curve has been drawn between 10 {mu}g and 100 {mu}g, the detection limit being around 5 {mu}g; 2. fluorine determination is not satisfactory: the detection limit is still of the order of 80 {mu}g. The best operating conditions have been defined for both elements. (author) [French] Nous avons recherche quelles etaient les conditions permettant d'obtenir la meilleure sensibilite dans le dosage spectrographique du chlore et du fluor par la methode d'excitation en atmosphere inerte (methode de Fassel). Nous avons etudie l'influence de l'atmosphere gazeuse, des conditions de la decharge et du materiau de pastillage. Les points suivants ont ete etablis: 1. le dosage du chlore est possible: une courbe de dosage a ete tracee entre 10 {mu}g et 100 {mu}g et la limite de detection est de l'ordre de 5 {mu}g; 2. le dosage du fluor n'est pas satisfaisant: la limite de detection obtenue etant encore de l'ordre de 80 {mu}g. Les conditions operatoires ont ete precisees pour ces deux elements. (auteur) %0Thesis/Dissertation %NCEA-R-2826;TRN: FR05R2826115160 %1 %CFrance %Rhttps://doi.org/ TRN: FR05R2826115160 FRN %GFrench