Abstract

At the Armco Steel Corporation, over a period of several years, a number of spectrochemical methods have been developed which utilize briquetted powders, drillings, millings, nibblings, and grindings. The paper describes briquetted sample techniques for the routine analysis of steel, zinc, and zinc base alloys. Low and plain carbon steels are analyzed quantitatively for such elements as tin, lead, manganese, nickel, chromium, molybdenum, cobalt, titanium, aluminum, zinc, and boron. Zinc and zinc base alloys are analyzed quantitatively for cadmium, iron, lead, tin, antimony, and aluminum. Operational details, such as sample holders, spectrum lines utilized, source-units and source-unit constants employed, and precision and accuracy data over a five-year period are discussed.

© 1950 Optical Society of America

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References

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1945 (2)

J. R. Churchill and R. G. Russell, Ind. Eng. Chem, Anal. Ed. 17, 24 (1945).
[Crossref]

W. J. Peohlman, Welding J., Research Supplement, New York,  24, 564s (1945).

1944 (1)

1943 (2)

1942 (3)

1941 (2)

Baird, W. S.

W. S. Baird, Proceedings of the Sixth Summer Conference on Spectroscopy and its Applications (John Wiley and Sons, Inc., New York, 1939), p. 80.

Brode, W. R.

W. R. Brode, Chemical Spectroscopy (John Wiley and Sons, Inc., New York, 1943), second edition, pp. 41, 59, 121, 364, 365.

Churchill, J. R.

J. R. Churchill and R. G. Russell, Ind. Eng. Chem, Anal. Ed. 17, 24 (1945).
[Crossref]

Dietert, H. W.

Fry,

Hackett,

Harrison, G. H.

G. H. Harrison, M.I.T. Wave-Length Tables (John Wiley and Sons, Inc., New York, 1939).

Hasler, M. F.

King, C.

Nausbaum,

Neuhaus, C. J.

Peohlman, W. J.

W. J. Peohlman, Welding J., Research Supplement, New York,  24, 564s (1945).

Russell, R. G.

J. R. Churchill and R. G. Russell, Ind. Eng. Chem, Anal. Ed. 17, 24 (1945).
[Crossref]

Schuch, J.

Schuch, J. A.

Scribner, B. F.

B. F. Scribner, J. Research Nat. Bur. Stand. 28, 165 (1942).
[Crossref]

Ind. Eng. Chem, Anal. Ed. (1)

J. R. Churchill and R. G. Russell, Ind. Eng. Chem, Anal. Ed. 17, 24 (1945).
[Crossref]

J. Opt. Soc. Am. (7)

J. Research Nat. Bur. Stand. (1)

B. F. Scribner, J. Research Nat. Bur. Stand. 28, 165 (1942).
[Crossref]

Welding J., Research Supplement, New York (1)

W. J. Peohlman, Welding J., Research Supplement, New York,  24, 564s (1945).

Other (3)

G. H. Harrison, M.I.T. Wave-Length Tables (John Wiley and Sons, Inc., New York, 1939).

W. R. Brode, Chemical Spectroscopy (John Wiley and Sons, Inc., New York, 1943), second edition, pp. 41, 59, 121, 364, 365.

W. S. Baird, Proceedings of the Sixth Summer Conference on Spectroscopy and its Applications (John Wiley and Sons, Inc., New York, 1939), p. 80.

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Figures (2)

Fig. 1
Fig. 1

Mounting of electrodes for arcing or sparking two briquettes.

Fig. 2
Fig. 2

Mounting of electrodes for arcing or sparking one briquette with counter carbon electrode.

Tables (10)

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Table I Elements and ranges determined using briquetted techniques.

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Table II Operating conditions for the analysis of ingot iron and plain carbon steels.

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Table III Element and internal standard iron lines used in the analysis of plain carbon steels.

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Table IV Element and internal standard iron lines used in the analysis of ingot iron.

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Table V Operating conditions for the analysis of low and high alloy steels.

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Table VI Element and internal standard iron lines used in the analysis of low and high alloy steels.

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Table VII Operating conditions for the analysis of zinc and zinc base alloys.

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Table VIII Element and internal standard lines used in the analysis of zinc and zinc base alloys.

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Table IX Typical reproducibility tests of standard samples.

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Table X Comparison of typical results of determinations made by spectrographic and by chemical methods.