On-site separation of arsenic species using a sorbent C18 column modified with APDC followed by ICP-MS determination

Abstract

No changes of arsenic speciation after sampling and fast ICP MS determination.

Atomic spectrometry update: review of advances in elemental speciation

“…The proposed approach was applied to the detection of As containing fatty acids in spiked human urine, and LOD values of <0.01 μg As L −1 were achieved, >100-fold lower than those previously reported using conventional organic eluents. A simple and quick procedure has been described for the separation of As species from water samples at the sampling site to prevent changes in speciation prior to determination by ICP-MS. 30 For the separation of As III anions, a C18 column was saturated with APDC. Acidification of the water sample to pH 2 ensured 100% retention of As III anions and effective separation from As V , MMA and DMA.…”

On site separation of inorganic forms of thallium and arsenic in sea water systems followed by ICP-MS determination

“…11 For separation of As( iii ) anions and retention of this arsenic form, a C18 column saturated with ammonium pyrrolidine dithiocarbamates, prepared and stored even 24 h before usage, was applied. 12…”

“…11 For separation of As(III) anions and retention of this arsenic form, a C18 column saturated with ammonium pyrrolidine dithiocarbamates, prepared and stored even 24 h before usage, was applied. 12 A particularly interesting case is thallium. Although in the water environment thallium is present mainly as Tl(I), the presence of Tl(III) was reported in some water systems, natural as well as polluted.…”