EBSCO Logo
Connecting you to content on EBSCOhost
Results
Title

A novel approach for an automated liquid/liquid extraction system-principle and application for the determination of several trace contaminants in highly alloyed steels and base alloys.

Authors

Wiltsche, Helmar; Prattes, Karl; Knapp, Günter

Abstract

novel automated liquid/liquid extraction system was developed for the determination of trace contaminants in unalloyed, alloyed and highly alloyed steels and super alloys. In the presented batch extraction system the aqueous phase and the non-water miscible organic phase were brought into close phase contact by high-speed stirring with a magnetic stir bar. Iodide complexes of Ag, Bi, Cd, Pb, Sb, Sn, Tl, and Zn were extracted from aqueous steel digests into 4-methylpentan-2-one (MIBK) containing 20 g L trioctylphosphine oxide. Ag, Bi, Cd, Pb, and Tl were extracted quantitatively whereas the extraction yields of Sb, Sn, and Zn were 83%, 61% and 75% respectively. Using high resolution continuum source flame AAS (HR-CS-FAAS) for analyte quantification the method was validated using 21 certified steel reference materials (CRMs). [Figure not available: see fulltext.]

Subjects

STEEL alloys; TRACE elements; ALLOYS; EXTRACTION (Chemistry); IODIDES

Publication

Analytical & Bioanalytical Chemistry, 2011, Vol 400, Issue 8, p2329

ISSN

1618-2642

Publication type

Academic Journal

DOI

10.1007/s00216-011-4666-3

EBSCO Connect | Privacy policy | Terms of use | Copyright | Manage my cookies
Journals | Subjects | Sitemap
© 2025 EBSCO Industries, Inc. All rights reserved