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基于水自由基阳离子快速检测甲醇和乙醇
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作者 段敏敏 张小平 +3 位作者 胡平花 袁艳春 张兴磊 陈焕文 《质谱学报》 EI CSCD 北大核心 2024年第1期123-130,I0004,共9页
本文采用常压电晕放电电离质谱技术,开发了一种快速检测甲醇和乙醇含量的方法。基于水自由基阳离子分别与甲醇和乙醇相互作用形成相应的水自由基阳离子复合物[CH_(3)OH+H_(2)O]^(+·)(m/z 50)和[CH_(3)CH_(2)OH+H_(2)O]^(+·)(m... 本文采用常压电晕放电电离质谱技术,开发了一种快速检测甲醇和乙醇含量的方法。基于水自由基阳离子分别与甲醇和乙醇相互作用形成相应的水自由基阳离子复合物[CH_(3)OH+H_(2)O]^(+·)(m/z 50)和[CH_(3)CH_(2)OH+H_(2)O]^(+·)(m/z 64),实现了不同种类酒精饮料中甲醇和乙醇的直接快速定性与定量分析。结果表明,甲醇和乙醇的检出限分别为0.011、0.004 mg/L,定量限分别为0.038、0.014 mg/L。该方法无需样品前处理、操作简单、分析速度快,适合含水体系的检测,对复杂体系中甲醇和乙醇的定量分析具有指导意义。 展开更多
关键词 水自由基阳离子 甲醇 乙醇 含酒饮料 常压电晕放电质谱
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牛奶的营养与酒的风味合二为一新型乳酒问世
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《吉林农业农村经济信息》 2004年第4期18-18,共1页
关键词 饮料 脱脂牛奶 发酵
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Composition of Trans-anethol and Other Aromatic Volatiles in Anisated Alcoholic Beverages by Head-Space GC-MS Chromatography
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作者 Marie Gerogiannaki Theophilos Masouras 《Journal of Environmental Science and Engineering(A)》 2015年第1期36-39,共4页
Aniseed distillates, like ouzo in Greece, raki in Turkey, pastis in France, and arak in Syria, are very popular in Mediterranean countries. This flavoured alcoholic beverage is produced by extraction and distillation ... Aniseed distillates, like ouzo in Greece, raki in Turkey, pastis in France, and arak in Syria, are very popular in Mediterranean countries. This flavoured alcoholic beverage is produced by extraction and distillation of fermented grape pomaces with herbal seeds from aromatic plants like Pimpinella anisum L., Foeniculum vulgate, Illicium verum and other plants which are also characterized by the presence of congeners which arise during fermentation process. Trans-anethol and its isomer cis-anethol are the main volatiles and are responsible for aroma properties of these traditional aniseed distillates. The aim of this research work was to find the concentration of special aromatic agent, trans-anethol and cis-anethol and also the major aromatic substances which are responsible for the aromatic quality. The majority of their identified components are isolated by extraction and distillation from different commercial brands and homemade samples. The constituents were identified by GC-MS (gas chromatography-mass spectometry) in this traditional spirit. The major constituents in distilled ouzo extract were also trans-anethol. 展开更多
关键词 Trans-anethol anis distillates ouzo.
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