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Issue 5, 2012
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Highly sensitive and selective detection of beryllium ions using a microcantilever modified with benzo-9-crown-3 doped hydrogel

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Abstract

A microcantilever sensor modified by chitosan/gelatin hydrogels that are doped with benzo-9-crown-3 has been developed for the sensitive and selective detection of beryllium ions in an aqueous solution. The microcantilever undergoes bending deflection upon exposure to Be2+ due to selective absorption of Be2+ in the hydrogel. The detection limit is 10−11 M. Other metal ions, such as Li+, Na+, K+, Mg2+, and Ca2+, have a marginal effect on the deflection of the microcantilever. The mechanism of the bending is discussed and the results showed that the microcantilever may be used for in situdetection of beryllium.

Graphical abstract: Highly sensitive and selective detection of beryllium ions using a microcantilever modified with benzo-9-crown-3 doped hydrogel

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Publication details

The article was received on 11 Oct 2011, accepted on 15 Dec 2011 and first published on 19 Jan 2012


Article type: Paper
DOI: 10.1039/C2AN15950C
Citation: Analyst, 2012,137, 1220-1224
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    Highly sensitive and selective detection of beryllium ions using a microcantilever modified with benzo-9-crown-3 doped hydrogel

    R. Peng, B. Chen, H. Ji, L. Wu and C. Tung, Analyst, 2012, 137, 1220
    DOI: 10.1039/C2AN15950C

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