Analysis of Heat-Resistant Alloys by Inductively Coupled Plasma/Atomic Emission Spectrometry with Hydrofluoric Acid-Resistant Sample Introduction Systems

Abstract

A simple and fast analytical method for complex Ni-based and Co-based heat-resistant alloys has been developed by inductively coupled plasma/atomic emission spectrometry (ICP-AES). Heat-resistant alloys of widely varying composition are dissolved in a mixture of hydrofluoric acid and nitric acid. A demountable hydrofluoric acid-resistant sample introduction system was used in which the surface of polytetrafluoroethylene (PTFE) parts was treated with metallic Na to improve the wetting property of the PTFE. Synthetic standard solutions are used for the calibration. Major and minor alloying elements are determined. The calibration curve method and internal standard method are compared. The internal standard method used two spectrometers and Mg as an internal standard element.

Keywords

Heat-resistant alloy Inductively coupled plasma/atomic emission spectrometry Hydrofluoric acid-resistant sample introduction system Calibration curve method Internal standard method

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References

Hoare

H. C.

and Mostyn

R. A.

, Anal. Chem. 39, 1153 (1967).

Newland

B. T. N.

and Mostyn

R. A.

, ICP Inform. Newsl. 2, 135 (1976).

Butler

C. C.

Kniseley

R. N.

, and Fasael

V. A.

, Anal. Chem. 47, 825 (1975).

Nomura

and Taketani

, Quart. J. Plasma Spectrosc. 3, 25 (1983) (Tokyo).

Barnes

R. M.

and Mahanti

H. S.

, Appl. Spectrosc. 37, 17 (1983).

Boumans

P. W. J. M.

and Lux-Steiner

M. Ch.

, Spectrochim. Acta 37B, 97 (1982).

Wallace

G. F.

Pirc

V. V.

, and Ediger

R. D.

, Can. J. Spectrosc. 27, 46 (1982).

Goulter

and Culver

B. R.

, ICP Inform. Newsl. 6, 495 (1981).

Barnes

R. M.

Fernando

Jing

L. S.

, and Mahanti

H. S.

, Appl. Spectrosc. 37, 389 (1983).

10.

Belchamber

R. M.

and Horlick

, Spectrochim. Acta 37B, 1075 (1982).

11.

Schutyser

and Janssens

, Spectrochim. Acta 39B, 737 (1984).

12.

Endo

and Sakao

, Bunseki Kagaku 30, 433 (1981).

13.

Catterick

and Hickman

D. A.

, Analyst 104, 516 (1979).

14.

Salin

E. D.

and Horlick

, Anal. Chem. 52, 1578 (1980).

15.

Barnett

W. B.

Fassel

V. A.

, and Kniseley

R. N.

, Spectrochim. Acta 25B, 139 (1970).

16.

Myers

S. A.

and Tracy

D. H.

, Spectrochim. Acta 38B, 1227 (1983).

17.

Belchamber

R. M.

and Horlick

, Spectrochim. Acta 37B, 1037 (1982).

18.

Schmidt

G. J.

and Slavin

, Anal. Chem. 54, 2491 (1982).

19.

Catterick

, Analyst 109, 1465 (1984).

20.

Holt

R. T.

and Wallace

, Intern. Met. Rev. 21, 1 (1976).

21.

Larson

G. F.

and Fassel

V. A.

, Appl. Spectrosc. 33, 592 (1979).

22.

Boumans

P. W. J. M.

, Line Coincidence Tables for Inductively Coupled Plasma Atomic Emission Spectrometry (Pergamon Press, Oxford, 1980).

23.