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Issue 12, 2011
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UV photochemical generation of volatile cadmium species

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Photochemical generation of a volatile molecular Cd species from an acetic acid medium was accomplished using a thin film generator comprising a 20 W low pressure UV source. Argon gas was used to sweep the product vapor to a quartz tube atomizer heated to 900 °C. No signal was generated below about 770 °C and optimum atomization conditions required addition of 10% hydrogen to the Ar transfer gas, indicative of a thermochemical atomization process similar to that undergone for metal hydrides. UV generation efficiency exceeded 90% but the transfer of the analyte to the detector was problematic and precision of measurement was near 30% RSD. Despite such conditions, an estimated limit of detection was 2 μg l−1.

Graphical abstract: UV photochemical generation of volatile cadmium species

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Publication details

The article was received on 22 Aug 2011, accepted on 21 Sep 2011 and first published on 12 Oct 2011

Article type: Technical Note
DOI: 10.1039/C1JA10252D
Citation: J. Anal. At. Spectrom., 2011,26, 2519-2523

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    UV photochemical generation of volatile cadmium species

    J. A. Nóbrega, R. E. Sturgeon, P. Grinberg, G. J. Gardner, C. S. Brophy and E. E. Garcia, J. Anal. At. Spectrom., 2011, 26, 2519
    DOI: 10.1039/C1JA10252D

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