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Subject Atomic absorption spectroscopy Remove constraint Subject: Atomic absorption spectroscopy

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    • 1970s

    General view of an unidentified laboratory technician operating a Perkin-Elmer Model 303 Atomic Absorption Spectrophotometer at an Environmental Protection Agency facility. Per notations accompanying the photograph, the…

    • 1970s

    Close-up view of a Perkin-Elmer Model 303 Atomic Absorption Spectrophotometer in use at an unidentified facility. The individual visible in the photograph is also unidentified.

    • 1970s

    General view of Dr. Secrest injecting a sample of biological material into the heated graphite furnace of a Perkin-Elmer Model 290 Atomic Absorption Spectrophotometer in the Department of Pharmacology at Wake Forest…

    • circa 1969

    Beckman's Model 448 Integral Atomic Absorption Spectrophotometer was a single-beam, single-pass instrument with a flame emission mode.

    • circa 1969

    Beckman's Model 444 Integral Atomic Absorption Spectrophotometer offered a choice of single-beam or double-beam operation, digital readout, and a flame emission mode.