Real-Time Profiling of Volatile Malt Aldehydes Using Selected Ion Flow Tube Mass Spectrometry

被引：0

作者：

De Clippeleer, Jessika ^{[1
]}

Van Opstaele, Filip ^{[1
]}

Vercammen, Joeri ^{[2
]}

Francis, Gregory J. ^{[3
]}

De Cooman, Luc ^{[1
]}

Aerts, Guido ^{[1
]}

机构：

[1] KaHo St Lieven, Lab Enzyme Fermentat & Brewing, Ghent, Belgium

[2] Intersci Expert Ctr, Louvain, Belgium

[3] Syft Techol UK, Warrington, Cheshire, England

来源：

LC GC NORTH AMERICA | 2010年

关键词：

SOLID-PHASE MICROEXTRACTION; TRACE GAS-ANALYSIS; BEER; BARLEY; DERIVATIZATION; QUALITY; BREATH; AIR; MS;

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The potential of selected ion flow tube mass spectrometry (SIFT-MS) to differentiate malted barley cultivars on the basis of their headspace profiles has been investigated. From a broad range of volatiles, marker aldehydes were selected because they are associated with malt quality and beer flavor stability. The authors used dynamic headspace SIFT-MS to identify the target volatiles in the different malt headspaces. The technique exhibited an increase in specificity and speed compared with the headspace solid-phase microextraction (SPME) gas chromatography MS method currently used. The unique feature of SIFT-MS to analyze sample headspaces rapidly and directly without the need for sample preparation, derivatization, or chromatographic preseparation is demonstrated.

引用

页码：67 / 74

页数：8

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