Determination of trace metals in sea water by ICP-MS after matrix separation | Health & Environmental Research Online (HERO)

HERO ID

7856141

Reference Type

Journal Article

Title

Determination of trace metals in sea water by ICP-MS after matrix separation

Author(s)

Sekhar, CK; Chary, SN; Tirumala, KC; Aparna, V

Year

2003

Is Peer Reviewed?

Yes

Journal

Acta Chimica Slovenica
ISSN: 1318-0207

Publisher

SLOVENSKO KEMIJSKO DRUSTVO

Location

LJUBLJANA

Volume

50

Issue

3

Page Numbers

409-418

Language

English

Web of Science Id

WOS:000185338000003

Abstract

The analysis of ultra trace elements in sea water samples is one of the most difficult analytical tasks in the field of environmental monitoring, as extremely low detection limits for elements buried in a highly saline matrix is required. The use of Inductively Coupled Plasma Mass Spectrometry (ICP-MS) for direct sea water analysis is currently limited by spectral and non-spectral interferences caused by the sea water matrix. Sample dilution is always a way out at the expense of inadequate sensitivity after such dilution especially for open ocean sea water. In order to approach this complex analytical task by ICP-MS there are two common strategies studied so far: first the use of pre-concentration technique and matrix removal and second the use of double focussing ICP-MS instruments. The use of Ammonium tetramethylene dithiocarbamate (APDC)/Methyl isobutyl ketone (MIBK) solvent extraction for matrix removal and direct estimation of trace elements in sea waters by ICP-MS are discussed in this paper.

Keywords

seawater; matriz removal; APDC/MIBK; ICP-MS