General view of two unidentified students operating Perkin-Elmer infrared spectroscopy equipment in the chemical analysis instrument laboratory at Broome Community College in New York State. Per notations accompanying…

General view of an unidentified chemist preparing a drug evidence sample for analysis by a Perkin-Elmer Infrared Spectrophotometer in the Columbus Police Department Crime Laboratory. Per notations accompanying the…

General view of associate engineer R. Mark Phelan preparing a sample of silicone resin for analysis by a Perkin-Elmer infrared spectrophotometer at IBM's Manufacturing Materials Analysis Laboratory located in San Jose,…

Close-up view of a sample being inserted into a Perkin-Elmer Model 735 Infrared Spectrophotometer in use at a General Instrument Corporation laboratory in Hicksville, New York. Per notations accompanying the photograph,…

General view of an unidentified chemist preparing an oil sample for analysis by a Perkin-Elmer Model 727 Infrared Spectrophotometer in a mobile laboratory for the Environmental Protection Agency's Oil and Hazardous…

Close-up view of an infrared sensor, likely designed for use with a telescope or other optical system, in production at an unidentified Perkin-Elmer Corporation facility. The employee visible in the photograph is also…

Two views of an infrared sensor, likely designed for use with a telescope or other optical system, in production at an unidentified Perkin-Elmer Corporation facility. The employee visible in the photographs is also…

General view of a Perkin-Elmer Model 6500 Inductively Coupled Plasma Mass Spectrometry system in use at an unidentified laboratory facility. The individuals visible in the photograph are identified as Dr. Lee Davidowski…

General view of Dr. Eva Wittgenstein inserting a sample into a Perkin-Elmer Model 621 Grating Infrared Spectrophotometer in use at a facility associated with the Laboratory Methods Research Section of the Environmental…

General view of an unidentified chemist examining the graphical output of a Perkin-Elmer Model 621 Grating Infrared Spectrophotometer in use at the Federal Drug Enforcement Administration's Special Testing and Research…

General view of Dr. Giovanni Bigalli posed with a Perkin-Elmer Grating Infrared Spectrophotometer at an unidentified laboratory facility. Per notations accompanying the photograph, this spectrophotometer is being used…

General view of Research Chemist S.V. Ting inserting a citrus sample into a Perkin-Elmer Model 457 Grating Infrared Spectrophotometer at a Florida Citrus Department laboratory located in Lake Alfred, Florida. Per…

General view of a Perkin-Elmer Model 337 Grating Infrared Spectrophotometer in use at a Calgon Water Management laboratory facility. The female technician visible in the photograph is unidentified.

General view of a Perkin-Elmer Grating Infrared Spectrophotometer in use at a Calgon Water Management laboratory facility. Per notations accompanying the photograph, the spectrophotometer is being used to characterize…

General view of a Perkin-Elmer Model 257 Grating Infrared Spectrophotometer in use at the Macfield Texturizing Company plant in Madison, North Carolina. Per notations accompanying the photograph, the instrument is being…

General view of an unidentified chemist checking the graphical read-out of a Perkin-Elmer infrared spectrometer in use at the Atlanta laboratory of Optimal Systems, Inc. Per notations accompanying the photograph, the…

Two views of a sample being injected into the heated graphite atomizer (HGA) of a Perkin-Elmer atomic absorption spectrophotometer in use at the quality control laboratory of the General Instrument Corporation in…

General view of Dr. N. Quickert injecting a sample prepared from airborne particulate matter into the tube of a Perkin-Elmer heated graphite atomizer (HGA) in order to determine the sample's cadmium content. The…

General view of chemist Robert Potts inserting a programming card into the heated graphite atomizer (HGA) of a Perkin-Elmer atomic absorption spectrophotometer in use at the State of Virginia's Environmental Laboratory.…

Close-up view of a blood-serum sample being injected into a Perkin-Elmer gas chromatograph via a solvent-free sampler capsule in the analytical laboratory at the Yale-New Haven Medical Center. Per notations…

General view of an unidentified female technician inserting a sample of an organic solvent into a Perkin-Elmer gas chromatograph at a laboratory associated with the National Institute for Occupational Safety and Health…

General view of Senior Pollution Control Technician Tara Schultz inserting a stack gas sample via syringe into a Perkin-Elmer gas chromatograph in the pollution laboratory at a Bethlehem Steel Corporation plant in…

Close-up view of chemist Lawrence Clark making an adjustment to the recording unit of a Perkin-Elmer Sigma gas chromatography system at the U.S. Army Chemical Test Branch laboratory located in Edgewood, Maryland. Per…

Two views of laboratory technician Cynthia A. Alley operating a Perkin-Elmer gas chromatograph and data station in a laboratory at the Analytical Bacteriology Branch of the Centers for Disease Control. In the first…

Close-up view of employee Larry Weathington operating a Perkin-Elmer Sigma 1 Gas Chromatograph System in a test laboratory associated with the Georgia Power Company. Per notations accompanying the photograph, the…