A rapid and sensitive method for dimethylsulphide analysis in Brazilian sugar cane sugar spirits and other distilled beverages

Journal of the Brazilian Chemical Society

Daniel R. Cardoso¹  Luiz G. Andrade Sobrinho¹  Benedito S. Lima-neto¹  Douglas W. Franco¹ 

[1] ,Universidade de São Paulo Instituto de Química de São Carlos São Carlos SP ,Brazil

关键词: cachaça;    chromatography;    purge and trap;    dimethylsulphide;    GC-MS;   

DOI  :  10.1590/S0103-50532004000200019

来源: SciELO

【 摘 要 】

A purge and trap concentrator coupled to gas chromatography was used to quantify dimethylsulphide in distilled beverages. A very good performance was obtained using a HP-FFAP column and a mass selective detector operating in SIM mode (m/z 62): detection limit 8 x 10-9 mol L-1; good repeatability and total time of analysis 25 minutes. The method has been applied for sixty samples of alcoholic beverages (cachaças, tiquiras, grappas, whiskies, brandies, vodkas, rum and a tequila). The cachaças exhibit the highest content of dimethylsulphide (median 3.16 x 10-4 mol L-1), followed by grappa (median 1.45 x 10-4 mol L-1). The presence of dimethylsulphide was not observed in the samples of rum.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License