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Interlaboratory comparison of measurements of acid-volatile sulfide and simultaneously extracted nickel in spiked sediments

William G. Brumbaugh·Chad R. Hammerschmidt·Luciana Zanella·Emily Rogevich·Gregory Salata·Radoslaw Puchalka
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Abstract

An interlaboratory comparison of acid-volatile sulfide (AVS) and simultaneously extracted nickel (SEM_Ni) measurements of sediments was conducted among five independent laboratories. Relative standard deviations for the seven test samples ranged from 5.6 to 71% (mean = 25%) for AVS and from 5.5 to 15% (mean = 10%) for SEM_Ni. These results are in stark contrast to a recently published study that indicated AVS and SEM analyses were highly variable among laboratories.

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William G. Brumbaugh, Chad R. Hammerschmidt, Luciana Zanella, Emily Rogevich, Gregory Salata, Radoslaw Puchalka. 2011-06-01. Interlaboratory comparison of measurements of acid-volatile sulfide and simultaneously extracted nickel in spiked sediments. https://doi.org/10.1002/etc.506

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