Application

column applications


Analyze Chinese Famous Liquor with GsBP-Inowax

白酒是以粮谷为原料,以酒曲为糖化发酵剂,经蒸煮、糖化发酵、蒸馏、贮存、勾兑而成。不同品牌不同产地的白酒所采用的原材料,发酵等生产工艺都不一样,这就意味着白酒成分非常复杂,主要是醇类,酯类和醛类和其他痕量风味物质。正是由于这些组分含量的区别,所以白酒的香气口感不同。 白酒常见的香型有酱香型、浓香型、清香型等,酱香型味最重(高级酯、高级醇等总含量也最高),浓香居中,清香更低(香型物质总含量也是最低的)。本文所介绍的三种名酒:茅台,五粮液和泸州老窖就分属酱香型和浓香型,并对它们进行成分以及主体香源物质进行分析。 传统上,一般先浓缩进行测定,但由于回收率不稳定,本文所采用的是直接进样法,气相色谱仪7890-FID分析。   以下是检测方法: 仪器:Agilent 7890 w/ FID 柱型:GsBP-Inowax, 30m x 0.32mm x 0.40um,  cat no. 2032-3004 炉温:50°C 5min […]

中国白酒测试

nitrosamine

Determination of Nitrosamine

Instruction This application note describes the GS-Tek column separates eight nitrosamines according to EPA 521&607. The standard mix of eight […]


GsBP-Bio-Ethanol Application

Since gasoline is a very complex mixture and contains many low boiling components that could potentially co-elute with methanol and […]

GsBP-Bio-Ethanol Application Feature Photo