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Determination of beryllium in a stream sediment by high performance chelation ion chromatography

journal contribution
posted on 2023-05-16, 12:17 authored by Shaw, M, Hill, SJ, Jones, P, Nesterenko, PN
High-performance chelation ion chromatography (HPCIC), involving a chelating silica substrate bonded with aminomethylphosphonic acid, has been developed as a novel technique for the quantitative determination of beryllium in complex matrices. An isocratic separation method, using an eluent containing 1 M KNO3, 0.5 M HNO3 and 0.08 M ascorbic acid, allowed the Be2+ to elute away from the sample matrix peak in under 6 min in a sample containing in excess of 800 mg l-1 matrix metals. A detection limit of 35 μg l-1 Be(II) was found using a post-column reaction involving Chrome Azurol S (CAS), 1 M hexamine and 10 mM EDTA buffered at pH 6. The standard addition curve gave excellent linearity (R2>0.999). The procedure was applied to the determination of trace beryllium in a certified sediment sample. The results obtained compared well with the certified value for beryllium. Copyright (C) 2000 Elsevier Science B.V.

History

Publication title

J Chromatogr A

Volume

876

Issue

1-2

Pagination

127-133

ISSN

0021-9673

Department/School

School of Natural Sciences

Publisher

Elsevier

Place of publication

Amsterdam

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the chemical sciences

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