Issue 2, 2022

On-site separation of arsenic species using a sorbent C18 column modified with APDC followed by ICP-MS determination

Abstract

The separation of unchanged As(III) species, just after sampling, is crucial for reliable speciation analysis of that element in water systems. In the presented paper, a simple and quick procedure is described for As(III) separation from a water matrix on the sampling site, integrated with speciation analysis using ICP-MS. For the separation of As(III) anions, a C18 column was saturated with APDC. The acidification of the water sample to pH 2 ensured 100% retention of As(III) anions and effective separation from As(V), MMA and DMA. C18 columns modified with APDC can be prepared and stored in the laboratory for up to 24 hours before use on the sampling site. The influence of Pb, Cd, Tl, and Cr cations can be limited with the addition of EDTA. Anions such as SO42− and PO43− do not significantly affect the efficiency of As(III) anion retention.

Graphical abstract: On-site separation of arsenic species using a sorbent C18 column modified with APDC followed by ICP-MS determination

Article information

Article type
Technical Note
Submitted
12 ⴽⵜⵓ 2021
Accepted
22 ⴷⵓⵊ 2021
First published
19 ⵉⵏⵏ 2022

J. Anal. At. Spectrom., 2022,37, 229-232

On-site separation of arsenic species using a sorbent C18 column modified with APDC followed by ICP-MS determination

B. Krasnodębska-Ostręga, A. Drwal, E. Biaduń and J. Kowalska, J. Anal. At. Spectrom., 2022, 37, 229 DOI: 10.1039/D1JA00354B

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