Arsenosugar extracted from algae: Isolation by anionic exchange solid‐phase extraction

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

“…The potential for making measurements in the field was mentioned repeatedly. For the determination of arsenosugars extracted from algae, Morales-Rodriguez et al 97 investigated the role of SPE by anion-exchange. They investigated several options for the loading and elution conditions as well as the extractant itself and concluded that the best performance was obtained with DSC-SAX cartridges, loaded at pH 8 and eluted with 4 mL of 0.5% ammonium formate.…”

Atomic spectrometry update: review of advances in elemental speciation

“…Obtaining reliable speciation data from algae is often hindered by the lack of available of suitable arsenosugar standard materials and chemical syntheses of such compounds have been reported to be complex and tedious. Morales-Rodriguez et al 45 investigated the feasibility of using AE SPE cartridges (DSC-SAX and DSC-NH 2 ) as an alternative for the isolation and preconcentration of arsenosugars (PO 4 -Sug, SO 3 -Sug and SO 4 -Sug). The effect of pH, ionic strength, type of salt and solvent on the elution protocols of the arsenosugars was studied.…”

“…Without any further optimisation, almost baseline resolution of the peaks for arsenate, chromate and molybdate was obtained. The spectrometer was operated in collision mode with He as the bath gas and 4 ISs, 72 Ge, 115 In, 103 Rh, 45 Sc, were added to the mobile phase at concentrations of 100 ng mL −1 . Total element concentrations were also measured by ICP-MS, the procedure for which was validated by the analysis of SPS Spectrapure Standards AS (Oslo, Norway) SPS-SW1 (quality control material for surface water analysis).…”