Issue 4, 1997
From the journal:

Analyst

Determination of Cadmium in Environmental Samples by Hydride Generation with In Situ Concentration and Atomic Absorption Detection

Henryk Matusiewicz,   Mariusz Kopras  and  Ralph E. Sturgeon  

Abstract

A volatile Cd species (presumed to be the hydride) was generated from aqueous solutions by merging sample and tetrahydroborate reductant in a continuous-flow system. The gaseous analyte was transferred onto the inner wall of a graphite tube furnace for in situ preconcentration at 200 °C. Calibration was achieved via the method of standard additions. An absolute detection limit (3ς blank ) of 10 pg was obtained using KBH 4 as reductant. The precision of the determination was 12% (RSD) for a Cd concentration of 0.2 ng ml - 1 using KBH 4 . The method was successfully applied to the determination of Cd in several certified environmental reference materials (soil, sediment, sea-water, biological samples) following pressure digestion of the samples by microwave heating in a mixture of acids.

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Article information

DOI
https://doi.org/10.1039/A606747F
Article type
Paper

Analyst, 1997,122, 331-336

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Determination of Cadmium in Environmental Samples by Hydride Generation with In Situ Concentration and Atomic Absorption Detection

H. Matusiewicz, M. Kopras and R. E. Sturgeon, Analyst, 1997, 122, 331 DOI: 10.1039/A606747F

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