Abstract

The need for test methods and materials for evaluating the performance of spectrophotometers has been increasing as the quality of these instruments improves. All too often the improper functioning of an instrument due either to improper use or adjustment may not be apparent to the user and may give rise to misleading results far inferior to those the instrument is capable of producing. In order to determine instrument performance readily it is highly desirable to have simple, rapid methods for evaluation of such properties as resolution, linearity, and stray light. Such testing procedures are being developed in this laboratory. Methods and materials for stray-light determination in ultraviolet spectrophotometers are given here. Absorbance measurements have been made on pure liquids and aqueous salt solutions which are readily available to serve as sharp cutoff-filters for this determination in the near- and far-ultraviolet regions.

© 1964 Optical Society of America

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References

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  1. D. D. Tunicliff, J. Opt. Soc. Am. 45, 963 (1955).
    [Crossref]
  2. L. J. Herbst, A. M. Johnson, J. Am. Chem. Soc. 79, 5587 (1957).
    [Crossref]
  3. A. U. Munck, J. F. Scott, Nature 177, 587 (1956).
    [Crossref] [PubMed]
  4. J. Barrett, A. L. Mansell, Nature 187, 138 (1960).
    [Crossref]
  5. G. Scheibe, Ann. Electrochem. 35, 701 (1929).

1960 (1)

J. Barrett, A. L. Mansell, Nature 187, 138 (1960).
[Crossref]

1957 (1)

L. J. Herbst, A. M. Johnson, J. Am. Chem. Soc. 79, 5587 (1957).
[Crossref]

1956 (1)

A. U. Munck, J. F. Scott, Nature 177, 587 (1956).
[Crossref] [PubMed]

1955 (1)

1929 (1)

G. Scheibe, Ann. Electrochem. 35, 701 (1929).

Barrett, J.

J. Barrett, A. L. Mansell, Nature 187, 138 (1960).
[Crossref]

Herbst, L. J.

L. J. Herbst, A. M. Johnson, J. Am. Chem. Soc. 79, 5587 (1957).
[Crossref]

Johnson, A. M.

L. J. Herbst, A. M. Johnson, J. Am. Chem. Soc. 79, 5587 (1957).
[Crossref]

Mansell, A. L.

J. Barrett, A. L. Mansell, Nature 187, 138 (1960).
[Crossref]

Munck, A. U.

A. U. Munck, J. F. Scott, Nature 177, 587 (1956).
[Crossref] [PubMed]

Scheibe, G.

G. Scheibe, Ann. Electrochem. 35, 701 (1929).

Scott, J. F.

A. U. Munck, J. F. Scott, Nature 177, 587 (1956).
[Crossref] [PubMed]

Tunicliff, D. D.

Ann. Electrochem. (1)

G. Scheibe, Ann. Electrochem. 35, 701 (1929).

J. Am. Chem. Soc. (1)

L. J. Herbst, A. M. Johnson, J. Am. Chem. Soc. 79, 5587 (1957).
[Crossref]

J. Opt. Soc. Am. (1)

Nature (2)

A. U. Munck, J. F. Scott, Nature 177, 587 (1956).
[Crossref] [PubMed]

J. Barrett, A. L. Mansell, Nature 187, 138 (1960).
[Crossref]

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Figures (12)

Fig. 1
Fig. 1

Various slit functions.

Fig. 2
Fig. 2

Glass and solution cutoff filters compared.

Fig. 3
Fig. 3

Energy spectrum for a single quartz-prism monochromator, ultraviolet and visible regions.

Fig. 4
Fig. 4

Energy spectrum for a single quartz-prism monochromator, near infrared region.

Fig. 5
Fig. 5

Materials for stray-light testing in the ultraviolet region.

Fig. 6
Fig. 6

Pure liquid acetone.

Fig. 7
Fig. 7

Aqueous NaI, 10 g/liter.

Fig. 8
Fig. 8

Aqueous NaBr, 10 g/liter and dilutions.

Fig. 9
Fig. 9

Aqueous KCl, 10 g/liter.

Fig. 10
Fig. 10

Pure liquid methanol.

Fig. 11
Fig. 11

Pure liquid water.

Fig. 12
Fig. 12

Effect of primary radiation on stray light level.

Tables (1)

Tables Icon

Table I Summary of Stray Light Tests

Metrics