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  1. Ralph H. Muller, “Photoelectric methods in analytical chemistry,” Ind. Eng. Chem. Anal. Ed. 11, 1–17 (1939).
    [Crossref]
  2. W. J. Dann and K. A. Evelyn, “The determination of vitamin A with the photoelectric colorimeter,” Biochem. J. 32, 1008–17 (1938).
  3. Marian Stark Kimble, “The photocolorimetric determination of vitamin A and carotene in human plasma,” J. Lab. Clin. Med. 24, 1055–65 (1939).
  4. William H. Summerson, “A simplified test-tube photoelectric colorimeter, and the use of the photoelectric colorimeter in colorimetric analysis,” J. Biol. Chem. 130, 149–166 (1939).
  5. William S. Hoffman, Photelometric Clinical Chemistry (William Morrow and Company, New York, 1941), pp. 6–7.
  6. Arthur H. Sanford, Charles Sheard, and Arnold E. Osterberg, “The photelometer and its use in the clinical laboratory,” Am. J. Clin. Path. 3, 405–420 (1933).
  7. E. Leitz, Inc., Pamphlet No. 1290, Leitz Clinical Photo-Electric Colorimeter (1941).
  8. Charles Sheard and M. N. States, “A concave grating photoelectric spectrophotometer,” J. Opt. Soc. Am. 31, 64–69 (1941).
    [Crossref]
  9. Louis Harris and Benjamin M. Siegel, “A simplified photometer for determining nitrogen dioxide concentrations,” Ind. Eng. Chem. Anal. Ed. 14, 258–260 (1942).
    [Crossref]
  10. T. R. Hogness, F. P. Zscheile, and A. E. Sidwell, “Photoelectric spectrophotometry, an apparatus for the ultra-violet and visible spectral regions: its construction, calibration, and application to chemical problems,” J. Phys. Chem. 41, 379–415 (1937).
    [Crossref]
  11. Charles L. Guettel, “A photelometric study of the lead-dithizone system at 610 millimicrons,” Ind. Eng. Chem. Anal. Ed. 11, 639–40 (1939).
    [Crossref]
  12. William S. Hoffman, “A rapid photoelectric method for the determination of glucose in blood and urine,” J. Biol. Chem. 120, 51 (1937).
  13. M. N. States, U. S. Patent No. 2,051,320 (1936).

1942 (1)

Louis Harris and Benjamin M. Siegel, “A simplified photometer for determining nitrogen dioxide concentrations,” Ind. Eng. Chem. Anal. Ed. 14, 258–260 (1942).
[Crossref]

1941 (2)

1939 (4)

Ralph H. Muller, “Photoelectric methods in analytical chemistry,” Ind. Eng. Chem. Anal. Ed. 11, 1–17 (1939).
[Crossref]

Marian Stark Kimble, “The photocolorimetric determination of vitamin A and carotene in human plasma,” J. Lab. Clin. Med. 24, 1055–65 (1939).

William H. Summerson, “A simplified test-tube photoelectric colorimeter, and the use of the photoelectric colorimeter in colorimetric analysis,” J. Biol. Chem. 130, 149–166 (1939).

Charles L. Guettel, “A photelometric study of the lead-dithizone system at 610 millimicrons,” Ind. Eng. Chem. Anal. Ed. 11, 639–40 (1939).
[Crossref]

1938 (1)

W. J. Dann and K. A. Evelyn, “The determination of vitamin A with the photoelectric colorimeter,” Biochem. J. 32, 1008–17 (1938).

1937 (2)

T. R. Hogness, F. P. Zscheile, and A. E. Sidwell, “Photoelectric spectrophotometry, an apparatus for the ultra-violet and visible spectral regions: its construction, calibration, and application to chemical problems,” J. Phys. Chem. 41, 379–415 (1937).
[Crossref]

William S. Hoffman, “A rapid photoelectric method for the determination of glucose in blood and urine,” J. Biol. Chem. 120, 51 (1937).

1933 (1)

Arthur H. Sanford, Charles Sheard, and Arnold E. Osterberg, “The photelometer and its use in the clinical laboratory,” Am. J. Clin. Path. 3, 405–420 (1933).

Dann, W. J.

W. J. Dann and K. A. Evelyn, “The determination of vitamin A with the photoelectric colorimeter,” Biochem. J. 32, 1008–17 (1938).

Evelyn, K. A.

W. J. Dann and K. A. Evelyn, “The determination of vitamin A with the photoelectric colorimeter,” Biochem. J. 32, 1008–17 (1938).

Guettel, Charles L.

Charles L. Guettel, “A photelometric study of the lead-dithizone system at 610 millimicrons,” Ind. Eng. Chem. Anal. Ed. 11, 639–40 (1939).
[Crossref]

Harris, Louis

Louis Harris and Benjamin M. Siegel, “A simplified photometer for determining nitrogen dioxide concentrations,” Ind. Eng. Chem. Anal. Ed. 14, 258–260 (1942).
[Crossref]

Hoffman, William S.

William S. Hoffman, “A rapid photoelectric method for the determination of glucose in blood and urine,” J. Biol. Chem. 120, 51 (1937).

William S. Hoffman, Photelometric Clinical Chemistry (William Morrow and Company, New York, 1941), pp. 6–7.

Hogness, T. R.

T. R. Hogness, F. P. Zscheile, and A. E. Sidwell, “Photoelectric spectrophotometry, an apparatus for the ultra-violet and visible spectral regions: its construction, calibration, and application to chemical problems,” J. Phys. Chem. 41, 379–415 (1937).
[Crossref]

Leitz, E.

E. Leitz, Inc., Pamphlet No. 1290, Leitz Clinical Photo-Electric Colorimeter (1941).

Muller, Ralph H.

Ralph H. Muller, “Photoelectric methods in analytical chemistry,” Ind. Eng. Chem. Anal. Ed. 11, 1–17 (1939).
[Crossref]

Osterberg, Arnold E.

Arthur H. Sanford, Charles Sheard, and Arnold E. Osterberg, “The photelometer and its use in the clinical laboratory,” Am. J. Clin. Path. 3, 405–420 (1933).

Sanford, Arthur H.

Arthur H. Sanford, Charles Sheard, and Arnold E. Osterberg, “The photelometer and its use in the clinical laboratory,” Am. J. Clin. Path. 3, 405–420 (1933).

Sheard, Charles

Charles Sheard and M. N. States, “A concave grating photoelectric spectrophotometer,” J. Opt. Soc. Am. 31, 64–69 (1941).
[Crossref]

Arthur H. Sanford, Charles Sheard, and Arnold E. Osterberg, “The photelometer and its use in the clinical laboratory,” Am. J. Clin. Path. 3, 405–420 (1933).

Sidwell, A. E.

T. R. Hogness, F. P. Zscheile, and A. E. Sidwell, “Photoelectric spectrophotometry, an apparatus for the ultra-violet and visible spectral regions: its construction, calibration, and application to chemical problems,” J. Phys. Chem. 41, 379–415 (1937).
[Crossref]

Siegel, Benjamin M.

Louis Harris and Benjamin M. Siegel, “A simplified photometer for determining nitrogen dioxide concentrations,” Ind. Eng. Chem. Anal. Ed. 14, 258–260 (1942).
[Crossref]

Stark Kimble, Marian

Marian Stark Kimble, “The photocolorimetric determination of vitamin A and carotene in human plasma,” J. Lab. Clin. Med. 24, 1055–65 (1939).

States, M. N.

Summerson, William H.

William H. Summerson, “A simplified test-tube photoelectric colorimeter, and the use of the photoelectric colorimeter in colorimetric analysis,” J. Biol. Chem. 130, 149–166 (1939).

Zscheile, F. P.

T. R. Hogness, F. P. Zscheile, and A. E. Sidwell, “Photoelectric spectrophotometry, an apparatus for the ultra-violet and visible spectral regions: its construction, calibration, and application to chemical problems,” J. Phys. Chem. 41, 379–415 (1937).
[Crossref]

Am. J. Clin. Path. (1)

Arthur H. Sanford, Charles Sheard, and Arnold E. Osterberg, “The photelometer and its use in the clinical laboratory,” Am. J. Clin. Path. 3, 405–420 (1933).

Biochem. J. (1)

W. J. Dann and K. A. Evelyn, “The determination of vitamin A with the photoelectric colorimeter,” Biochem. J. 32, 1008–17 (1938).

Ind. Eng. Chem. Anal. Ed. (3)

Ralph H. Muller, “Photoelectric methods in analytical chemistry,” Ind. Eng. Chem. Anal. Ed. 11, 1–17 (1939).
[Crossref]

Louis Harris and Benjamin M. Siegel, “A simplified photometer for determining nitrogen dioxide concentrations,” Ind. Eng. Chem. Anal. Ed. 14, 258–260 (1942).
[Crossref]

Charles L. Guettel, “A photelometric study of the lead-dithizone system at 610 millimicrons,” Ind. Eng. Chem. Anal. Ed. 11, 639–40 (1939).
[Crossref]

J. Biol. Chem. (2)

William S. Hoffman, “A rapid photoelectric method for the determination of glucose in blood and urine,” J. Biol. Chem. 120, 51 (1937).

William H. Summerson, “A simplified test-tube photoelectric colorimeter, and the use of the photoelectric colorimeter in colorimetric analysis,” J. Biol. Chem. 130, 149–166 (1939).

J. Lab. Clin. Med. (1)

Marian Stark Kimble, “The photocolorimetric determination of vitamin A and carotene in human plasma,” J. Lab. Clin. Med. 24, 1055–65 (1939).

J. Opt. Soc. Am. (1)

J. Phys. Chem. (1)

T. R. Hogness, F. P. Zscheile, and A. E. Sidwell, “Photoelectric spectrophotometry, an apparatus for the ultra-violet and visible spectral regions: its construction, calibration, and application to chemical problems,” J. Phys. Chem. 41, 379–415 (1937).
[Crossref]

Leitz Clinical Photo-Electric Colorimeter (1)

E. Leitz, Inc., Pamphlet No. 1290, Leitz Clinical Photo-Electric Colorimeter (1941).

Other (2)

William S. Hoffman, Photelometric Clinical Chemistry (William Morrow and Company, New York, 1941), pp. 6–7.

M. N. States, U. S. Patent No. 2,051,320 (1936).

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Figures (7)

F. 1
F. 1

A, transmission curve for a filter and B, the response curve for a photo-cell as modified by the light source and the filter.

F. 2
F. 2

Analytical curve C when one stray light component (λ 630) is present which is only slightly absorbed by solution. Absorption path, 1 cm.

F. 3
F. 3

Analytical curve C when one stray light component (λ 415) is present which is strongly absorbed by solution. Absorption path, 1 cm.

F. 4
F. 4

Families of analytical curves obtainable with variation (in spectral region) in a single stray light component, as well as variation in the magnitude of the stray light from 0 to 25 percent of the incident radiation.

F. 5
F. 5

Analytical curve E when two stray light components are present, one of which (λ 415) is strongly and the other (λ 630) only slightly absorbed by solution. Absorption path, 1 cm.

F. 6
F. 6

Analytical curves (A to E) for same solution, in which various amounts of stray light are present. Absorption path, 1 cm.

F. 7
F. 7

Linear analytical curve for copper sulphate in which stray light effect is negligible on account of the wide absorption band of the solution. Absorption path, 1 cm.

Equations (4)

Equations on this page are rendered with MathJax. Learn more.

T = I / I 0 .
T = I ( f 1 x 1 + f 2 x 2 + f n x n ) I 0 ( x 1 + x 2 + x n ) ,
T = I f · x I 0 x ,
T = T + x I 0 ( f T ) .