Method for analysis of heavy sulphur compounds using gas chromatography with fl...

• Autor(es): Moreira, N. ; Pinho, P. Guedes de ; Vasconcelos, I.
• Data: 2004
• Identificador Persistente: http://hdl.handle.net/10400.14/3510
• Origem: Veritati - Repositório Institucional da Universidade Católica Portuguesa
• Assunto(s): Gas chromatography; Flame photometric detection; Sulphur compounds; Wine
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

A method for analysis of heavy sulphur compounds in wines, based on gas chromatography (GC) with flame photometric detection, is reported. Wine samples preparation includes a dichloromethane liquid–liquid extraction followed by concentration under a nitrogen atmosphere. The extracted fraction was also analysed by GC–mass spectrometry. The method enables high recovery of sulphur compounds in wine and satisfies the requirements of repeatability and sensitivity. Applications of the method to red, white and Port wines are reported.