Data/hora: 21/06/2024 16:11:01

Biblioteca(s): 	Embrapa Pecuária Sudeste.	
Data corrente: 	06/07/2021	
Data da última atualização: 	28/09/2021	
Autoria: 	SILVA, F. L. F. da; ANDRADE NETO, D. M.; MENEZES, F. L. de; SÁ, I. P. de; MARCANO DE HIGUERA, J.; FECHINE, P. B. A; COSTA, L. S. da; NOGUEIRA, A. R. de A.; LOPES. G. S; MATOS, W. O.	
Afiliação: 	FRANCISCO LUAN FONSECA DA SILVA, UFC; DAVINO MACHADO ANDRADE NETO, UFC; FERNANDO L. DE MENEZES, UFC; IVERO PITA DE SA, UFSCAR; JULYMAR MARCANO DE HIGUERA, UFSCAR; PIERRE BASÍLIO ALMEIDA FECHINE, UFC; LUELC SOUZA DA COSTA, UNICAMP; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; GISELE SIMONE LOPES, UFC; WLADIANA OLIVEIRA MATOS, UFC.	
Título: 	Non-chromatographic arsenic speciation analyses in wild shrimp (Farfantepenaeus brasiliensis) using functionalized magnetic iron-nanoparticles.	
Ano de publicação: 	2021	
Fonte/Imprenta: 	Food Chemistry, v.345, 2021, 128781.	
Páginas: 	9 p.	
ISSN: 	0308-8146	
DOI: 	https://doi.org/10.1016/j.foodchem.2020.128781	
Idioma: 	Inglês	
Conteúdo: 	A 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.	
Palavras-Chave: 	Arsenic speciation; ICP-MS; Inorganic arsenic; Iron-nanoparticles; Magnetic nanoparticles separation.	
Thesaurus Nal: 	Shrimp.	
Categoria do assunto: 	W Química e Física	
Registro original: 	Embrapa Pecuária Sudeste (CPPSE)	
Exemplares: 	CPPSE - (25353-1) - UPC - AP - DD - PROCI-2021.00084 - SIL - 2021.00092 - DIS