Installation of the Mass Spectrometer 9 (MS-9) at the Humble Oil and Refining Company Research and Development Division laboratory located in Baytown, Texas. Present in the photograph are, from left, Henry Earle Lumpkin (Mass Spectrometrist, Humble Oil and Refining Company); Nigel Bean (Erection Engineer, Associated Electrical Industries); Joe Daniels (Electronics Engineer, Humble Oil and Refining Company); and Peter Dammers (Engineer Trainee, Associated Electrical Industries).
Manufactured in Manchester, England by Associated Electrical Industries (AEI), this MS-9 was the first installed in the United States. At Humble, it was used to identify complex hydrocarbon, sulfur, nitrogen, and oxygen compounds in petroleum through accurate measurement of mass in parts per million.
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“Installation of Mass Spectrometer 9 (MS-9) at Humble Oil and Refining Company,” 1963. Henry Earle Lumpkin Photograph Collection, Box 1. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/zg64tk97v.
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