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Comparative study of optimised BCR sequential extraction scheme and acid leaching of elements in the certified reference material NIST 2711

Citation

Larner, BL and Seen, AJ and Townsend, AT, Comparative study of optimised BCR sequential extraction scheme and acid leaching of elements in the certified reference material NIST 2711, Analytica Chimica Acta, 556, (2) pp. 444-449. ISSN 0003-2670 (2006) [Refereed Article]

DOI: doi:10.1016/j.aca.2005.09.058

Abstract

The optimised BCR sequential extraction procedure and a 4 h 1 mol L -1 HCl partial extraction have been performed on the NIST 2711 reference material for a suite of 12 elements (Cd, Sb, Pb, Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, As) using magnetic sector ICP-MS. A pseudo-total aqua regia digest of NIST 2711 has also been undertaken for quality assurance purposes, and comparison of the sum of the four BCR fractions, which included an aqua regia digest on the residue, with the pseudo-total aqua regia digest has been used to assess the accuracy of the BCR partitioning approach. As a result of this work, discrepancies between previous studies about BCR partitioning of elements in NIST 2711 have been discussed and an increase in confidence about the use of BCR partitioning scheme on seven elements (Cd, Pb, Al, Mn, Fe, Cu, Zn) in this standard material has been obtained. On the other hand, BCR partitioning for Sb, Cr, Co, Ni and As has been provided for the first time. Partial extraction results are also reported for the same 12 elements analysed by the optimised BCR procedure, with the partial extraction results exhibiting a strong correlation with the sum of the three labile steps of the BCR procedure. © 2005 Elsevier B.V. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Other Chemical Sciences
Research Field:Environmental Chemistry (incl. Atmospheric Chemistry)
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Larner, BL (Miss Bronwyn Larner)
Author:Seen, AJ (Dr Andrew Seen)
Author:Townsend, AT (Associate Professor Ashley Townsend)
ID Code:43115
Year Published:2006
Web of Science® Times Cited:62
Deposited By:Chemistry
Deposited On:2006-08-01
Last Modified:2009-09-17
Downloads:0

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