Glow Discharge Mass Spectrometry (GDMS) is a very sensitive and robust analytical tool for monitoring elemental compositions and impurities in materials down to trace and ultra-trace mass fraction levels. It is a high resolution mass spectrometric technique, which is based on glow discharge atomization/ionization source combined with sector-field mass analyzer. Besides full survey elemental coverage, depth specific distributions of elements can be evaluated with very high sensitivity if measurements are conducted in flat sampling geometry.
Unknown or unwanted impurities in materials often cause “irritating” distractions for materials scientists or engineers. Thus, higher purity materials are preferred in order to eliminate unwanted defects, which could affect performance, reliability, lifetime and safety in general. On the other hand, intentionally added impurities into materials can introduce energy levels previously not assessable by electrons, photons, phonons, atoms and molecules, thus creating vast opportunities for discovering new phenomena for property tailoring. GDMS is a powerful tool for impurity analysis.
Ideal Uses of GDMS
Full survey analysis of advanced materials (metals, alloys, graphite, electronic materials, oxides and ceramics)
Purity certification up to 99.99999% (7N)
Depth specific trace and ultra-trace distribution measurements
Traceability of unknowns from limited amount of samples
Chemical characterization of particulate materials and engineering coatings
Strengths
Full survey of all stable isotopes, except H
Parts per billion sensitivity
Limited matrix effects
Linear calibration
Robustness
Depth specific distribution measurements of analytes with high sensitivity
Limitations
No liquids
Vacuum stability
GDMS Technical Specifications
Signals Detected: Mass resolved positive ions
Elements Covered: All stable isotopes of elements, except H
Eurofins EAG Materials Science is the industry leader for Glow Discharge Mass Spectrometry (GDMS) analytical services with the largest number and variety of GDMS instruments installed. Our depth and breadth of experience and dedication to innovative analytical methods is unrivaled.
Would you like to learn more about using Glow Discharge Mass Spectrometry?
Contact us today for your Glow Discharge Mass Spectrometry (GDMS) needs. Please complete the form below to have an EAG expert contact you.
To enable certain features and improve your experience with us, this site stores cookies on your computer.
Please click Continue to provide your authorization and permanently remove this message.