Data/hora: 12/06/2024 03:36:41

Biblioteca(s): | Embrapa Semiárido; Embrapa Uva e Vinho.
Data corrente: | 10/09/2015
Data da última atualização: | 17/03/2016
Autoria: | NÓBREGA, I. C. C.; PEREIRA, G. E.; SILVA, M.; PEREIRA, E. V. S.; MEDEIROS, M. M.; TELLES, D. L.; ALBUQUERQUE JUNIOR, E. C.; OLIVEIRA, J. B.; LACHENMEIER, D. W.
Afiliação: | GIULIANO ELIAS PEREIRA, CNPUV.
Título: | Improved sample preparation for GC-MS-SIM analysis of ethyl carbamate in wine.
Ano de publicação: | 2015
Fonte/Imprenta: | Food Chemistry, v. 177, p. 23-28, June 2015.

Idioma:

Inglês
Português

Conteúdo: | An improved sample preparation procedure for analysis of carcinogenic ethyl carbamate (EC) in wine by GC?MS?SIM is proposed. Differences over AOAC reference procedure were: (1) use of EC-d5 as internal standard instead of less similar propyl carbamate; (2) extraction by diethyl ether instead of more toxic dichloromethane, and (3) concentration by vacuum automated parallel evaporation instead of more time and work consuming rotary evaporation. Mean recovery was 104.4%, intraday precision was 6.7% (3.4gL1) and 1.7% (88.5lgL1), regression coefficient was 0.999 in the linear working range of 3?89lgL 1, and limits of detection and quantification were 0.4 and 1.2 lgL 1. Applicability was demon- strated by analysis (in triplicate) of 5 wine samples. EC concentration ranged from 5.2 ± 0.2 to 29.4 ± 1.5lgL1. The analytical method is selective, accurate, repeatable, linear, and has similar method performance as the reference method along with the several mentioned advantages.
Palavras-Chave: | Automated parallel evaporation; Diethyl ether extraction; Etil carbamato; Evaporação paralelo automatizado; GC–MS–SIM; Método analítico; Wine.
Thesagro: | Vinho.
Thesaurus Nal: | Ethyl carbamate.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/129315/1/nobrega-foodchemistry-v177-p23-28-jun2015.pdf
Registro original: | Embrapa Uva e Vinho (CNPUV)

Exemplares:

CNPUV - (16020-1) - UPC - AP - DD - 663.203 -  - 15.00411 - DIS
CPATSA - (55096-1) - UPC - AP - DD -  -  -  - DIS