Determination of Metal Elements in Mongolian Chromite

Choi, Kwang Soon; 최광순; Lee, Chang Heon; 이창헌; Pyo, Hyung Yeol; 표형렬; Park, Soon Dal; 박순달; Joe, Kih Soo; 조기수

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P-ISSN1225-0163
E-ISSN2288-8985
SCOPUS, ESCI, KCI

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P-ISSN 1225-0163
E-ISSN 2288-8985

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Vol.13, No.6

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Determination of Metal Elements in Mongolian Chromite

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985

2000, v.13 no.6, pp.766-774

Choi, Kwang Soon
Lee, Chang Heon
Pyo, Hyung Yeol
Park, Soon Dal
Joe, Kih Soo

Choi, K. S., Lee, C. H., Pyo, H. Y., Park, S. D., & Joe, K. S. (2000). Determination of Metal Elements in Mongolian Chromite. , 13(6), 766-774.

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Abstract

The major and trace constituents of Mongolian chromite were analyzed by ICP-AES. The dissolution procedures, mixed acid ($HClO_4+H_3PO_4$) digestion and fusion with $Na_2O_2$ flux, have been studied to dissolve the chromite. The optimum dissolution method was found to be a fusion with $Na_2O_2$ flux. The effect of large amount of Na on major and trace constituents was examined when these elements were determined by ICP-AES. There was no effect on major elements at a concentration of Na 250 mg/L solution. The emission intensity of trace constituents containing Na 1,250 mg/L decreased to 1.0-5.2% according to elements and wavelengths. The result of this method was compared with that of neutron activation analysis (NAA) to confirm the accuracy of this procedure. The results between two methods were in a good agreement within less than 5% for $Al_2O_3$, $Cr_2O_3$, MgO and -20 to 8% for Co, Mn, V, Zn, respectively.