"The Spectral Transmissive Properties of Dyes" is a detailed scientific paper originally published in 1921 as part of the
Scientific Papers of the Bureau of Standards
. This comprehensive study, designated as Scientific Paper 440 (S440), meticulously examines the spectral transmittance of seven permitted food dyes across the visible, ultraviolet, and near-infrared spectrums.
Authored by K.S. Gibson, H.J. McNicholas, E.P.T. Tyndall, M.K. Frehafer, and W.E. Mathewson, this research provides invaluable data for scientists and technicians working in fields such as chemistry, optics, and industrial technology. The paper offers a historical snapshot of early 20th-century scientific methodology and analytical techniques in dye characterization. It remains a valuable resource for understanding the fundamental optical properties of dyes and their applications.
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