27Dec 2017

INVESTIGATION OF DIRECT DETEMINATION OF MANY IMPURITIES IN HIGH PURITY ZrCl4 MATERIAL AND AFTER SEPARATION OF THE MATRIX Zr USING SOLVENT EXTRACTION USING 2-ETHYL HEXYL PHOSPHONIC ACID MONO 2-ETHYL HEXYL ESTER (PC88A) BY ICP-MS.

  • Faculty of Chemistry - Thai Nguyen University of Education, Luong Ngoc Quyen road, Thai Nguyen city, Viet Nam.
  • Vice Rector - Thai Nguyen University of Education, Luong Ngoc Quyen road, Thai Nguyen city, Viet Nam.
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ICP-MS using matching matrix and internal standard In is believed direct detemination some impurities such as Al, Si, Ti, V, Cr, Fe, Ni, Zn, Nb, Mo, Sn, Hf, Ta and W in high purity ZrCl4. The study on capability extraction of Zr(IV) by di-2-ethyl hexyl phosphonic acid mono 2-ethyl hexyl ester (PC88A) were examined by infrared spectrum (IR) of ZrO(NO3)2, PC88A-kerosene and Zr-PC88A-kerosene. Impurities in ZrCl4 were also determinated when using internal standard In after separation of them from the matrix Zr by extracting in 50% of dissolved (PC88A) in kerosene. Investigation of separation of so many impurities from the matrix Zr showed that with using 50% PC88A/kerosene solvent, after one cycle extraction using 3M HNO3 and 1-2 cycles stripping Zr and scrubbing impurities by 4M HNO3 can recovery for 95-100% of almost investigated impurity elements and stripping about 22-28% of Zr(IV). Our results indicated that with the mentioned amount of Zr, effect of the matrix Zr on the determination of almost elements by ICP-MS can be negligible. Levels of impurities were relative standard deviations (RSD) less than 8.3% and recoveries (Rev) of 95.0-104.5%, so detemination of impurities was high reliability and accuracy.

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[Chu Manh Nhuong, Nguyen Thi Hien Lan, Nguyen Dat Son and Mai Xuan Truong. (2017); INVESTIGATION OF DIRECT DETEMINATION OF MANY IMPURITIES IN HIGH PURITY ZrCl4 MATERIAL AND AFTER SEPARATION OF THE MATRIX Zr USING SOLVENT EXTRACTION USING 2-ETHYL HEXYL PHOSPHONIC ACID MONO 2-ETHYL HEXYL ESTER (PC88A) BY ICP-MS. Int. J. of Adv. Res. 5 (Dec). 1401-1409] (ISSN 2320-5407). www.journalijar.com

Chu Manh Nhuong
Chemistry

DOI:

Article DOI: 10.21474/IJAR01/6100      
DOI URL: https://dx.doi.org/10.21474/IJAR01/6100

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