Data/hora: 10/06/2024 18:23:24

Biblioteca(s): 	Embrapa Pecuária Sudeste.	
Tipo da produção científica: 	Resumo em Anais de Congresso	
Data corrente: 	10/11/2010	
Data da última atualização: 	30/06/2023	
Autoria: 	GROMBONI, C. F.; PEREIRA, C. D.; NOGUEIRA, A. R. de A.	
Afiliação: 	CAIO FERNANDO GROMBONI, UFSCar/SÃO CARLOS, SP.; CATARINIE DINIZ PEREIRA, UFSCar/SÃO CARLOS, SP.; ANA RITA DE ARAUJO NOGUEIRA, CPPSE.	
Título: 	Evaluation of extraction employing tetramethylammonium hydroxide for traceability of brazilian meat.	
Ano de publicação: 	2010	
Fonte/Imprenta: 	In: RIO SYMPOSIUM ON ATOMIC SPECTROMETRY, 11., 2010, Mar del Prata: Horiba, 2010.	
Páginas: 	p. 292	
Idioma: 	Português	
Conteúdo: 	Bovine traceability is an important tool for the control of quality of the meat. It can assist in the identification of disease outbreaks, well-being of creation, fraud control and still ensure the origin of meat, adding value to the product in front of a consumer market increasingly demanding. This work was to objective the applicability of extractions employing tetramethylammonium hydroxide (TMAH) and scanning spectral m/z using inductively coupled plasma mass spectrometry (ICP-MS) for possible applicability using chemometrics in the control of traceability. For optimization of system a factorial design 24, with a total of sixteen experiments were performed with the use of NIST 8414 -Bovine Muscle Powder certified reference material. The sample mass varied from 0.050 (normalized -1) and 0.075 g (normalized +1). The volume of TMAH varied from 1.0 (-1) to 2.0 mL (+1) and the TMHA concentration changed 6.25 (-1) to 12.5 % (+1). The extraction time with agitation changed from 1 (-1) to 6 (+1) hours, in order to evaluate the recuperation of As, Ba, Co, Cd, Mo, Sr, Se and Pb using ICP-MS. Spectral scans were performed (0-300 m/z) with analytical blank and samples. After evaluation, the generates spectra will be used as the basis ~o propose the chemiometrics model (construction and validation) for forecast of samples of unknown origin. The sample preparation methodology has proved to >e adequate for the proposed procedure, which employ a huge number of samples.	
Palavras-Chave: 	Brazilian meat; Tetramethylammonium hydroxide.	
Categoria do assunto: 	W Química e Física	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/37797/1/PROCI-2010.00196.pdf	
Registro original: 	Embrapa Pecuária Sudeste (CPPSE)	
Exemplares: 	CPPSE - (19673-1) - UPC - RA - PP - PROCI-2010.00196 - GRO - 2010.00196 - DIS