SIMULTANEOUS DETERMINATION OF MO, AS, TH AND K IMPURITIES IN EXTRACTED URANIUM MATRIX, BY ICP-OES

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YAZDANI J.; ROSTAMIZADEH H.; REZVANIANZADEH M.R.; RAHIMI S.A.; SHAHMIR BARZOKI H.; SAYYARI R.; AGHAHOSEINI M.; SOURI A.

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Journal: JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY Year:2014 | Volume:- | Issue:1 (67) Page(s): 41-48

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Title

SIMULTANEOUS DETERMINATION OF MO, AS, TH AND K IMPURITIES IN EXTRACTED URANIUM MATRIX, BY ICP-OES

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Keywords

SIMULTANEOUS DETERMINATIONQ2

URANIUM MATRIXQ2

IMPURITYQ2

EXTRACTIONQ2

ICP-OESQ2

Abstract

Replacement of four individual, time-consuming and expensive ASTM standard methods for determination of Mo, As, Th and K in samples having URANIUM MATRIX with one new proficient method is considered. The main advantages of this method are overcoming the mentioned shortages and preserving the precision and accuracy of the analysis results for the desired technical specification of materials and nuclear industries. In the new method, the interfering URANIUM MATRIX was removed by EXTRACTION with a mixture of tri (2- ethylhexyl) phosphate (TEHP): n-Heptane. The elements were determined by inductively coupled plasma-optical emission spectrometry (ICP-OES) simultaneously. The effective parameters on the EXTRACTION including: pH, the remained uranium and temperature were studied. The dynamic range of calibration curve related to the element type was linear (R2>0.999) at 10-500 mg/g U. The method detection limits (MDL) of 0.51, 0.66, 1.1 and 0.55mg/g U were obtained for Mo, As, Th and K, respectively. The obtained quantity of En for all elements was less than 0.26. The analytical precision and bias of current method at two different concentration levels were determined and compared with the available standard methods denoting an evidence of the method verification. The decreased analysis of time duration from ~24 hr to <2 hr and the remarkably reduced instrumental and material charges are some of the joined industrial and applied properties of the present method.

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APA: Copy

YAZDANI, J., ROSTAMIZADEH, H., REZVANIANZADEH, M.R., RAHIMI, S.A., SHAHMIR BARZOKI, H., SAYYARI, R., AGHAHOSEINI, M., & SOURI, A.. (2014). SIMULTANEOUS DETERMINATION OF MO, AS, TH AND K IMPURITIES IN EXTRACTED URANIUM MATRIX, BY ICP-OES. JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, -(1 (67)), 41-48. SID. https://sid.ir/paper/97526/en

Vancouver: Copy

YAZDANI J., ROSTAMIZADEH H., REZVANIANZADEH M.R., RAHIMI S.A., SHAHMIR BARZOKI H., SAYYARI R., AGHAHOSEINI M., SOURI A.. SIMULTANEOUS DETERMINATION OF MO, AS, TH AND K IMPURITIES IN EXTRACTED URANIUM MATRIX, BY ICP-OES. JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY[Internet]. 2014;-(1 (67)):41-48. Available from: https://sid.ir/paper/97526/en

IEEE: Copy

J. YAZDANI, H. ROSTAMIZADEH, M.R. REZVANIANZADEH, S.A. RAHIMI, H. SHAHMIR BARZOKI, R. SAYYARI, M. AGHAHOSEINI, and A. SOURI, “SIMULTANEOUS DETERMINATION OF MO, AS, TH AND K IMPURITIES IN EXTRACTED URANIUM MATRIX, BY ICP-OES,” JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, vol. -, no. 1 (67), pp. 41–48, 2014, [Online]. Available: https://sid.ir/paper/97526/en

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