Home page Department Contact us Home page Who are we Techniques Industries served Examples of applications News Contact us Techniques Auger AFM EBSD EDS FIB FTIR GC-MS GDMS ICP-OES / MS IGA LA-ICP-MS LEXES OP Raman RBS SEM SIMS TEM / STEM Thermal analysis TOF-SIMS TXRF XPS / ESCA XRD XRF XRR Life sciences Home page > Department> Materials Sciences > Techniques > IGA Instrumental gas analysis (IGA) Contact us " The Instrumental Analysis of Gas (IGA, abbreviation for " Instrumental Gas Analysis ") allows the determination of C, H, O, N and S present in the solid material, in the order of magnitude ranging from ppmwt (Part per million mass) up to percentage levels . A high temperature oven is used to quickly heat the samples and convert certain elements into volatile forms for separation and measurement. Carbon and Sulfur are measured by infrared detection after combustion under pure oxygen. The analytical method is based on the complete oxidation of the solid sample by combustion in an oxygen plasma (above 2000 ° C). The sample is placed in the ceramic crucible of a high frequency induction furnace, where it is heated. The combustion of the sample releases various gases which are measured by four infrared detectors. Analysis of SO 2 determines the sulfur content. The analysis of CO and CO 2 determines the carbon content. Nitrogen, Oxygen and Hydrogen are measured by the inert gas fusion method. The sample is placed in a graphite crucible and introduced into an electrode furnace. After purging it with an inert gas (He or Ar), a strong current is passed through the crucible, which creates an increase in temperature (above 2500 ° C). All the gases produced in the furnace (CO, CO 2 , N 2 and H 2 ) are released into the inert gas flow which is directed to the appropriate detector: an infrared detector to measure O as CO, or a katharometer which measures N and H by thermal conductivity. Instrument calibration is performed using certified reference materials. For any analysis request by GDMS, IGA, ICP-OES, ICP-MS or Thermal Analysis (TGA & DTA), please complete the analysis request form below, and send it to us by email at info.fr address : EAG Laboratories (France) - Sample Submittal Form (English, pdf) EAG Laboratories (France) - Analysis request form (French, pdf) Ideal uses Technical specifications Strong points Limits Sectors served Determination of H, C, S, N and O in solids, in powders or in particulate materials Analysis of fractional gas concentration to quantify C, H, O, N and S To differentiate the concentrations of C, H, O, N and S on the surface and in the overall densities (bulk) Contact us 94, chemin de la Peyrette 31170 Tournefeuille, France © Copyright 2018 EAG Inc. | All Rights Reserved | Legal Notice