Analysis Of Gases In Metals
Report Number: WADD TR 60-482
Author(s): Schmidt-Collerus, Josef J., Frank, Andrew J.
Corporate Author(s): Denver Research Institute; University of Denver
Laboratory: Materials Central
Date of Publication: 1961-03
Pages: 49
Contract: AF 33(616)-6381
DoD Project: 7360
DoD Task: 73615
Identifier: AD0260980
Abstract:
This investigation has been undertaken to determine the feasibility of using gas chromatographic techniques in the determination of nitrogen in metals. The resolution of extracted nitrogen, hydrogen, oxygen and carbon monoxide by a molecular sieve 5A chromatographic column is demonstrated. The chromatographic sensitivity is shown to be adequate for part per million determinations. An apparatus which combines gas extraction from metallic samples, gas transfer, and chromatographic analysis is described and recommendations presented for further improvement in system operation. The application of the basic principle for the determination of nitrogen in magnesium and ingot iron with the developed apparatus has been investigated. To date these determinations gave largely negative results; reasons for the failures are attributed to apparatus shortcomings and corrective measures are proposed. Extension of the analytical method to inert-gas fusion extraction is discussed.
Provenance: Agricultural Research Service Southern Region Research Center
Author(s): Schmidt-Collerus, Josef J., Frank, Andrew J.
Corporate Author(s): Denver Research Institute; University of Denver
Laboratory: Materials Central
Date of Publication: 1961-03
Pages: 49
Contract: AF 33(616)-6381
DoD Project: 7360
DoD Task: 73615
Identifier: AD0260980
Abstract:
This investigation has been undertaken to determine the feasibility of using gas chromatographic techniques in the determination of nitrogen in metals. The resolution of extracted nitrogen, hydrogen, oxygen and carbon monoxide by a molecular sieve 5A chromatographic column is demonstrated. The chromatographic sensitivity is shown to be adequate for part per million determinations. An apparatus which combines gas extraction from metallic samples, gas transfer, and chromatographic analysis is described and recommendations presented for further improvement in system operation. The application of the basic principle for the determination of nitrogen in magnesium and ingot iron with the developed apparatus has been investigated. To date these determinations gave largely negative results; reasons for the failures are attributed to apparatus shortcomings and corrective measures are proposed. Extension of the analytical method to inert-gas fusion extraction is discussed.
Provenance: Agricultural Research Service Southern Region Research Center