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Measurement of arsenic species in marine sediments by high-performance liquid chromatography-inductively coupled plasma mass spectrometry

Ellwood, Michael; Maher, William


Extraction of sediments with phosphoric acid (0.5M) and hydroxylamine hydrochloride (0.1M) allowed the measurement of labile arsenic species while preserving the two redox states of arsenic. The forms and concentrations of arsenic species were measured using HPLC-ICP-MS. A Hamilton PRP X-100 strong anion exchange column using a 20mM ammonium phosphate buffer (pH 6 and 9.2) was used to separate arsenic species. Recoveries of sediments spiked with As(V) were quantitative whereas for sediments...[Show more]

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
Source: Analytica chimica acta
DOI: 10.1016/S0003-2670(02)01414-9


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