Non-chromatographic arsenic speciation analyses in wild shrimp (Farfantepenaeus brasiliensis) using functionalized magnetic iron-nanoparticles

Atomic spectrometry update: review of advances in elemental speciation

“…The precision between sample replicates was better than 7%. An iron-magnetic nanomaterial functionalised with dimethyl triamine-pentamethylene phosphonic acid was used for non-chromatographic speciation of As in wild shrimp (Farfantepenaeus brasiliensis) by ICP-MS. 72 This material was used for the SPE for As species, optimisation using central composite design indicated a pH 4.0, 15 min extraction time, and 20 mg of mass of material for optimal extraction. The iAs extracted using the nanoparticles gave concentrations of between 20 and 100 mg kg À1 in the evaluated samples.…”

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

“…Although this approach is limited in the number of species that can be determined, it has the advantages of (a) avoiding the inherent dilution of an HPLC procedure, and (b) consenting the possible use of measurement techniques other than ICP-MS. Such procedures include the determination of iAs species in shrimp, 63 iAs in dairy products, 64 As III in water, urine and fruit juice, 65 Cr III in tap water, 66 Mn species in beverages, 67 iSb in rice wine, 68 iSe species in dairy products, 69 Se IV in foods, 59 and V V in water. 70…”

Atomic Spectrometry Update: review of advances in elemental speciation

“…The precision between sample replicates was better than 7%. An iron-magnetic nanomaterial functionalised with dimethyl triamine-pentamethylene phosphonic acid was used for non-chromatographic speciation of As in wild shrimp ( Farfantepenaeus brasiliensis ) by ICP-MS. 72 This material was used for the SPE for As species, optimisation using central composite design indicated a pH 4.0, 15 min extraction time, and 20 mg of mass of material for optimal extraction. The iAs extracted using the nanoparticles gave concentrations of between 20 and 100 μg kg −1 in the evaluated samples.…”