01893naa a2200337 a 450000100080000000500110000800800410001902200140006002400560007410000230013024501710015326000090032430000090033352008540034265000110119665300230120765300110123065300220124165300230126365300380128670000240132470000220134870000180137070000270138870000210141570000200143670000260145670000160148270000160149877300410151421328072021-09-28       2021    bl uuuu     u00u1 u    #d  a0308-81467 ahttps://doi.org/10.1016/j.foodchem.2020.1287812DOI1 aSILVA, F. L. F. da  aNon-chromatographic arsenic speciation analyses in wild shrimp (Farfantepenaeus brasiliensis) using functionalized magnetic iron-nanoparticles.h[electronic resource]  c2021  a9 p.  aA new iron-magnetic nanomaterial functionalized with organophosphorus compound was used as solid-phase for arsenic speciation analysis in seafood samples by ICP-MS. The procedure was optimized using chemometric tools and the variables pH 4.0, 15 min extraction time, and 20 mg of mass of material were obtained as the optimum point. The inorganic arsenic (iAs) extracted using nanoparticles presented concentrations between 20 and 100 µg kg 1 in the evaluated samples. The method was validated for accuracy using CRMs DOLT-5 and DORM-4. It was possible to reuse the same magnetic nanomaterial for 6 successive cycles, and we obtained a detection limit of 16.4 ng kg 1. The proposed method is suitable for the use of inorganic speciation of As, presenting good accuracy, precision, relatively low cost, and acquittance to green chemistry principles.  aShrimp  aArsenic speciation  aICP-MS  aInorganic arsenic  aIron-nanoparticles  aMagnetic nanoparticles separation1 aANDRADE NETO, D. M.1 aMENEZES, F. L. de1 aSÁ, I. P. de1 aMARCANO DE HIGUERA, J.1 aFECHINE, P. B. A1 aCOSTA, L. S. da1 aNOGUEIRA, A. R. de A.1 aLOPES. G. S1 aMATOS, W. O  tFood Chemistrygv.345, 2021, 128781.