MICROWAVE SAMPLE PREPARATION IN ANALYSIS OF FERROTUNGSTEN, SILICOCALCIUM, AND FERROBORON BY INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION SPECTROMETRY (ICP-AES)
https://doi.org/10.26896/1028-6861-2018-84-2-11-17
Abstract
We developed methods of microwave sample preparation of ferroalloys for subsequent determination of W, Mo, Mn, Si, P, Cu, As, and Sn in ferrotungsten; Si, Ca, Al, and P in silicocalcium and B, Al, Si, Cu and P in a ferroboron using inductively coupled plasma atomic emission spectrometry. The developed methods provide significant shortening of the procedure and increase in the profitability of the analysis. Specified compositions of the acid mixtures for decomposition of ferroalloys and regimes of microwave heating provide complete conversion of the samples into the solution, exclude autoclave leakage and allow determination of all rated elements. Correctness of the determination is confirmed by analysis of standard samples and comparison with the results of the determination in accordance with GOST. The proposed methods shorten the duration of sample preparation to several hours and total time of analysis by 9 – 18 times.
About the Authors
I. I. Chernikova
Lipetsk State Technical University
Russian Federation
Russian Federation
Inna I. Chernikova
U. A. Ostroukhova
Lipetsk State Technical University
Russian Federation
Ul’yana A. Ostroukhova
Russian Federation
Ul’yana A. Ostroukhova
T. N. Ermolaeva
Lipetsk State Technical University
Russian Federation
Tat’yana N. Ermolaeva
Russian Federation
Tat’yana N. Ermolaeva
References
1. Ore ferro-nickel company. URL: http://www.rfnk.ru/products/ferrovolfram (accessed August 4, 17) [in Russian].
2. Megaencyclopedia of Cyril and Methodius. URL: http://megabook.ru/article/%D0%93%D1%80%D0%B0%D1%84%D0%B8%D1%82%D0%B8%D0%B7%D0%B0%D1%86%D0%B8%D1%8F (accessed August 4, 17) [in Russian].
3. Branch portal of the Ferrous Metallurgy of Russia. URL: http://www.russianmet.ru/materials/ferrosplav/Fyerrobor.html (accessed August 4, 17) [in Russian].
4. RF State Standard GOST 17293–93. Ferrotungsten. Technical requirements and delivery conditions. — Moscow: Izd. standartov, 1995. — 12 p. [in Russian].
5. RF State Standard GOST 4762–71. Silicocalcium. Specifications. — Moscow: Izd. standartov, 1999. — 5 p. [in Russian].
6. RF State Standard GOST 14848–69. Ferroboron. Specifications. — Moscow: Izd. standartov, 1999. — 4 p. [in Russian].
7. RF State Standard GOST 14638.1–81. Ferrotungsten. Method for determination of tungsten. — Moscow: Izd. standartov, 1981. — 16 p. [in Russian].
8. RF State Standard GOST 14638.4–81. Method for the determination of silicon. — Moscow: Izd. standartov, 1981. — 6 p. [in Russian].
9. RF State Standard GOST 14638.8–84. Method for determination of molybdenum. — Moscow: Izd. standartov, 1981. — 7 p. [in Russian].
10. RF State Standard GOST 14638.5–81. Method for the determination of manganese. — Moscow: Izd. standartov, 1981. — 6 p. [in Russian].
11. RF State Standard GOST 14638.3–81. Method for determination of phosphorus. — Moscow: Izd. standartov, 1981. — 8 p. [in Russian].
12. RF State Standard GOST 14638.15–84. Method for the determination of arsenic. — Moscow: Izd. standartov, 1981. — 12 p. [in Russian].
13. RF State Standard GOST 14638.13–84. Method for determination of tin. — Moscow: Izd. standartov, 1981. — 11 p. [in Russian].
14. RF State Standard GOST 14638.9–84. Method for determination of copper. — Moscow: Izd. standartov, 1981. — 11 p. [in Russian].
15. RF State Standard GOST 14858.4–91. Method for the determination of silicon. — Moscow: Izd. standartov, 1991. — 6 p. [in Russian].
16. RF State Standard GOST 14858.6–91. Method for the determination of calcium. — Moscow: Izd. standartov, 1991. — 5 p. [in Russian].
17. RF State Standard GOST 14858.7–91. Methods for determination of aluminum. — Moscow: Izd. standartov, 1991. — 9 p. [in Russian].
18. RF State Standard GOST 14858.3–81. Method for determination of phosphorus. — Moscow: Izd. standartov, 1999. — 3 p. [in Russian].
19. RF State Standard GOST 14021.1–78. Methods for determination of boron. — Moscow: Izd. standartov, 1999. — 6 p. [in Russian].
20. RF State Standard GOST 14021.8–78. Methods for determination of aluminum. — Moscow: Izd. standartov, 1999. — 7 p. [in Russian].
21. RF State Standard GOST 14021.8–78. Methods for determination of silicon. — Moscow: Izd. standartov, 1999. — 5 p. [in Russian].
22. RF State Standard GOST 14021.8–78. Method for determination of phosphorus. — Moscow: Izd. standartov, 1999. — 6 p. [in Russian].
23. RF State Standard GOST 14021.8–78. Methods for determination of copper. — Moscow: Izd. standartov, 1999. — 5 p. [in Russian].
24. Karachevtsev F. N., Zagvozdkina T. N., Dvoretskov R. M. Determination of silicon in nickel alloys by ICP-AES combined with microwave preparation / Trudy VIAM. 2015. N 12. P. 55 – 60 [in Russian].
25. Tormysheva E. A., Smirnova E. V., Ermolaeva T. N. Determination of iron (III) oxide, calcium and aluminum oxides in magnesian refractories by ICP-AES under microwave preparation / Vestnik VGU. Ser. Khim. Biol. Farm. 2010. N 1. P. 51 – 55 [in Russian].
26. Chernikova I. I., Tomilina E. A., Kukina V. A., Ermolaeva T. N. Optimization of microwave sample preparation in ICP-AES analysis of ferrovanadium and ferroniobium / Zavod. Lab. Diagn. Mater. 2017. Vol. 83. N 2. P. 12 – 17 [in Russian].
27. Nerobeeva I. V., Ermolaeva T. N. Determination of B in a high-silica semiproduct using a method of atomic-emission spectroscopy with inductively coupled plasma / Zavod. Lab. Diagn. Mater. 2008. Vol. 74. N 5. P. 3 – 6 [in Russian].
28. Fairman B., Hinds M. W., Nelms S. M. Industrial analysis: metals, chemicals and advanced materials / J. Anal. Atom. Spectrom. 2000. N 15. P. 1606 – 1631.
29. Korsakova N. V., Toropchenova E. S., Krigman L. V., et al. Analysis of silicate materials using microwave sampling / Zavod. Lab. Diagn. Mater. 2009. Vol. 75. N 4. P. 23 – 27 [in Russian].
30. Mermet J. M. Use of magnesium as a test element for inductively coupled plasma atomic emission spectrometry diagnostics / Anal. Chim. Acta. 1991. Vol. 250. P. 85 – 94.
Review
For citations:
Chernikova I.I., Ostroukhova U.A., Ermolaeva T.N. MICROWAVE SAMPLE PREPARATION IN ANALYSIS OF FERROTUNGSTEN, SILICOCALCIUM, AND FERROBORON BY INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION SPECTROMETRY (ICP-AES). Industrial laboratory. Diagnostics of materials. 2018;84(2):11-17. (In Russ.) https://doi.org/10.26896/1028-6861-2018-84-2-11-17
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