01510naa a2200277 a 450000100080000000500110000800800410001902400550006010000200011524501930013526000090032852006430033765000100098065000140099065000190100465000100102365000100103370000180104370000180106170000180107970000230109770000190112070000170113970000190115677300570117521633582024-04-08       2024    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1080/00032719.2023.22404532DOI1 aAVILA, L. O. de  aSpeciation of Inorganic Arsenic in Retorted Oil Shale Slurry by Hydride Generation Atomic Absorption Spectrometry (HG AAS) after Ultrasound-Assisted Acid Extraction.h[electronic resource]  c2024  aAn analytical method for determination of inorganic arsenic speciesin retorted oil shale slurry by atomic absorption spectrometrycoupled to hydride technique with ultrasound assisted acidic extrac-tion is reported. Trivalent arsenic measurement employed samplestabilization with a pH 4.5 prior to reaction with the reducing agentand analysis. In contrast, total inorganic As depended upon the pre-reduction of As(V) to As(III) with KI and ascorbic acid in 6.0 M HCland of As(V) was estimated by the difference of the total inorganicAs and As(III) concentrations. The limit of quantification was 3.7 mgkg1for As(III) and 1.3 mg kg1for itAs  aShale  aArsênico  aEspectrometria  aRocha  aXisto1 aTORRES, D. P.1 aORESTE, E. Q.1 aLISBOA, M. T.1 aSILVEIRA, C. A. P.1 aRIBEIRO, A. S.1 aNUNES, A. M.1 aMARTINAZZO, R.  tAnalytical Lettersgv. 57, n. 7, p. 1065-1077, 2024.