Arsenic speciation in sea scallop gonads

The arsenic species in male and female sea scallop gonads (Placopecten magellanicus) at pre-spawning and post-spawning stages, collected near Newfoundland, Canada, were characterized by using high-performance liquid chromatography–inductively coupled plasma-mass spectrometry. All samples contain arsenobetaine (0.5–3.0 µg g−1) and a dimethylarsinoylriboside derivative as the major water-soluble arsenic compounds. Male pre-spawning gonads contain 0.35–2.4 µg g−1 of the dimethylarsinoylriboside. Female pre-spawning gonads contain 0.47–9.64 µg g−1 of the same compound. Post-spawning gonads, both male and female, contain higher concentrations of this compound (3.7–11.4 µg g−1). The total concentrations of water-soluble arsenic compounds are different in male and female pre-spawning gonads. These differences are not obvious in post-spawning gonads. Post-spawning gonads contain higher total concentrations of water-soluble arsenic compounds than pre-spawning gonads. Copyright © 2001 John Wiley & Sons, Ltd.

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