SMART Chart Webinar Series: IGA

Instrumental Gas Analysis (IGA)

Presented: Wednesday, June 17, 2020

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Instrumental Gas Analysis (IGA) measures gas-forming elements (C, H, O, N and S) present in solid materials from ppm to percentage levels. A high temperature furnace is used to rapidly or temperature-stepped heat the sample and thereby convert certain elements into volatile forms in order to separate, detect, and measure them.

Carbon and sulfur are measured as CO2 and SO2 based on combustion and infrared detection during instrumental gas analysis. Nitrogen, oxygen and hydrogen are measured using inert gas fusion or solid carrier gas heat extraction as N2, CO/CO2 and H2 respectively. For metals and alloys, our analysis is based on well-established ASTM standard testing procedures, and provide high precision and high accuracy measurement of bulk concentration in materials. For other advanced materials, EAG’s method development and validation is rooted in its strength in the materials science and analytical chemistry, including in-depth understanding of the solid-solid reaction, combustion kinetics, flux design expertise, and the bonding chemistry of H, C, N, O and S in materials, to achieve high precision and accuracy of measurement. EAG also extends its analysis beyond bulk measurement, by implementing stepped temperature heating of samples (or fractional analysis) and by cross-checking with other analytical techniques in house; therefore, providing our clients critical information about H embrittlement issues, surface and bulk oxygen content in powders, free carbon in carbides, etc.

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About the Presenter:

Jayeshkumar Das Badge Picture-1Jayeshkumar Das, Ph.D., Specialist
Dr. Jayeshkumar Das is a scientific support specialist with expertise in using variety of techniques for gas analysis on materials including semiconductors, high performance ceramics, advanced alloys and high purity metals that are essential for electronics, medical, aerospace/defense and energy industries.

Dr. Jayeshkumar Das joined EAG laboratories in 2018 with a focus on providing technical support to existing gas analysis capabilities at EAG and developing new techniques for gas analysis.

In this webinar we will cover:

  • Principles of the technique
  • Analytical requirements
  • Variety of real-world examples for wide variety of materials
  • Strengths and limitations