红酒软木塞中2,4,6-三氯苯甲醚检测方案(离子迁移谱仪)

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ResearchGateSee discussions， stats， and author profiles for this publication at： https：//www.researchgate.net/publication/271196751 USING ION MOBILITY SPECTROMETRY FOR DIRECT DETECTION OF 2，4，6-TRICHLOROANIZOL FROM CORK STOPPER Conference Paper. January 2015 CITATIONS0 READS297 3 authors： Martin SaboMaSaTECH Michaela Malaskova University of Innsbruck 6 PUBLICATIONS 19 CITATIONS SEE PROFILE Comenius University in Bratislava 252 PUBLICATIONS 2，853 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects： Research and Development Agency， project Nr. APVV-15-0580 "Electron and ion interactions wiht molecules and their applications in the field of analytical anddiagnostic methods" View project USING ION MOBILITY SPECTROMETRY FOR DIRECT DETECTIONOF 2，4，6-TRICHLOROANIZOL FROM CORK STOPPER Martin Sabol， Michaela Maláskoval， Stefan Matejcikl 'Department ofExperimental Physics， Comenius University Mlynska dolina F2， 842 48 Bratislava， Slovakia E-mail： Martin.Sabo@gmail.com In this work we demonstrate the detection of 2，4，6-Trichloroanisole (TCA) from cork stopper without any pre-separation or pre-concentration. The TCA was identified by its peak with reduced ion mobility of 1.66 cm2.V-1.s-1. INTRODUCTION The wine industry and consumers themselves deem that wine aroma is an important attribute of product quality. The presence of halo-anisoles is anenological problem in wine industry because of their low sensory threshold. TCA， particularly the 2，4，6-TCA isomer， is considered as main substanceresponsible for unpleasant odour of wine also known as "cork taint"， mentioned in some researches [1，2]. This musty， mouldy odour of tainted wineoriginating from the cork material is directly detected by consumers of wine and is defined as similar to wet cardboard， mushrooms， earthy smell， etc[1]. In this work we will demonstrate the detection of TCA directly from the cork stoppers in analytical time 5s. EXPERIMENT The IMS instrument developed at Department ofExperimental Physics in collaboration with MaSaTECHand modified for TCA detection from the cork stopperswas used in this experiment. The 2，4，6 -Trichloroanisolas a reference compound was obtained from SigmaAldrich. The cork stoppers were obtained from OrlandoTeodoro - Universidade Nova de Lisboa. The corkstoppers were in three different concentration： 1. Corksstoppers with TCA concentration 19ppt (determine viathe GC-MS)， 2. Cork stoppers with TCA detected by thesmell and 3. Cork stoppers with unknown concentration. RESULTS AND DISCUSION Fig.1. The IMS spectrum without any sample. Fig.2. IMS response on TCA The reaction of 0， (H，0) RI with molecules of TCA results in formation of (TCA- CH；) ions [1]. The slowest peak with reduced mobility 1.66 cm².V-1.s-1was evaluated as a TCA peak. This value of reduced mobility is in very good agreement with values reported in literature[1]. -2，5 2，0 -1co 1，0 -0.5 g CONCLUSION REFERENCES In this work we have demonstrated that the IMS instrument has ability todetect TCA from cork directly without any pre-treatment of the material. Theanalytical time required for analysis of cork stoppers was less than 5 second.These first results are very promising and allow a hope for future applicationsin industry. [1] Z. Karpas， A.V.Guaman， D. Calvo，A.Pardo，S.Marco， Talanta， 93 (2012) 200 [2]H.R.Buser， C. Zanier，H.Tanner， J.Agric. Food Chem.， 30 (1982) 359 ACKNOWLEDGEMENT MaSaTECH Because we live for SCIENCE AGENCY SKOISTVASR All content following this page was uploaded by Martin Sabo on January The user has requested enhancement of the downloaded file. 牛Slovak ministry of education USING ION MOBILITY SPECTROMETRY FOR DIRECT DETECTION OF 2,4,6-TRICHLOROANIZOL FROM CORK STOPPER离子迁移谱检测红酒软木塞2,4,6-三氯苯甲醚Martin Sabo1, Michaela Malásková1, Štefan Matejčík11Department of Experimental Physics, Comenius UniversityMlynská dolina F2, 842 48 Bratislava, SlovakiaINTRODUCTIONThe wine industry and consumers themselves deem that wine aroma is an important attribute of product quality. The presence of halo-anisoles is an enological problem in wine industry because of their low sensory threshold. TCA, particularly the 2,4,6-TCA isomer, is considered as main substance responsible for unpleasant odour of wine also known as “cork taint”, mentioned in some researches [1,2]. This musty, mouldy odour of tainted wine originating from the cork material is directly detected by consumers of wine and is defined as similar to wet cardboard, mushrooms, earthy smell, etc [1]. In this work we will demonstrate the detection of TCA directly from the cork stoppers in analytical time 5s.葡萄酒行业和消费者都认为葡萄酒的香气是产品质量的重要属性。2,4,6-三氯苯甲醚存在是葡萄酒工业中的一个重要问题，因为它们的感官阈值较低。TCA，特别是2,4,6-TCA异构体，被认为是引起葡萄酒难闻气味的主要物质，也被称为“软木污染”，一些研究[1,2]。这种发霉气味来自软木塞材料，被葡萄酒消费者直接感受到，定义为类似于湿纸板、蘑菇、泥土味等[1]。在这项工作中，我们将演示在分析时间5s内直接从瓶塞中检测TCA。