Abstract

A simplified curve-shape indexing system for spectrophotometric absorption curves is described by means of which the tentative identification of an “unknown” (whose curve is already at hand) may ordinarily be made in 2 or 3 minutes even in the presence of small amounts of colored impurities. Quantitative solutions are not required.

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References

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  1. W. C. Holmes, J. T. Scanlan and A. R. Peterson, "The visual spectrophotometry of dyes," Dept. Agriculture Tech. Bull. 310 (June, 1932).
  2. I. H. Godlove, paper in the Intersociety Color Council News Letter 26 (December, 1939).
  3. W. P. Davey, J. App. Phys. 10, 820–830 (1939).
  4. Construction of cams providing log log 1/T plots is described in U. S. Patent 2,176,013.
  5. E. Zühlke, Analyze von Färbungen (Janecke).

Davey, W. P.

W. P. Davey, J. App. Phys. 10, 820–830 (1939).

Godlove, I. H.

I. H. Godlove, paper in the Intersociety Color Council News Letter 26 (December, 1939).

Holmes, W. C.

W. C. Holmes, J. T. Scanlan and A. R. Peterson, "The visual spectrophotometry of dyes," Dept. Agriculture Tech. Bull. 310 (June, 1932).

Peterson, A. R.

W. C. Holmes, J. T. Scanlan and A. R. Peterson, "The visual spectrophotometry of dyes," Dept. Agriculture Tech. Bull. 310 (June, 1932).

Scanlan, J. T.

W. C. Holmes, J. T. Scanlan and A. R. Peterson, "The visual spectrophotometry of dyes," Dept. Agriculture Tech. Bull. 310 (June, 1932).

Zühlke, E.

E. Zühlke, Analyze von Färbungen (Janecke).

Dept. Agriculture Tech. Bull. (1)

W. C. Holmes, J. T. Scanlan and A. R. Peterson, "The visual spectrophotometry of dyes," Dept. Agriculture Tech. Bull. 310 (June, 1932).

Other (4)

I. H. Godlove, paper in the Intersociety Color Council News Letter 26 (December, 1939).

W. P. Davey, J. App. Phys. 10, 820–830 (1939).

Construction of cams providing log log 1/T plots is described in U. S. Patent 2,176,013.

E. Zühlke, Analyze von Färbungen (Janecke).

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