A Hydride Generation-Nanosilver Surface Plasmon Resonance Absorption Spectral Method for the Determination of Trace Se(IV)

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Abstract:

In HCl solution, the Se (IV) was reduced to SeH2 by NaBH4, and absorbed by solution of ethanol-AgNO3. The Ag+ was reduced to nanosilver that exhibited surface plasmon resonance absorption (SPR) peaks at 292 nm and 420 nm. Under the selected conditions, the value at 292 nm was linear to the concentration of Se (IV) in the range of 0.08-2.0 μg/mL, a detection limit of 0.04 μg/mL. The proposed method was applied to detect Se (IV) in water samples, with satisfactory results.

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491-494

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August 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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