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快速头部空间固态微提取表与实时质谱直接分析 (SPMESH-DART-MS) 葡萄汁和葡萄酒中的衍生挥发性

Terry L Bates¹, Gavin L Sacks¹

¹Department of Food Science, Cornell University, 251 Stocking Hall, Ithaca, NY, USA.

Analytica chimica acta

|July 31, 2023

概括

一种新方法快速分析葡萄酒中的挥发性,使用头空间固相微提取与实时质谱直接分析 (HS-SPMESH-DART-MS). 这种技术为传统的GC-MS提供了更快的替代品,用于质量控制,特别是在烟雾污染事件后.

科学领域:

分析化学分析化学
食品科学食品科学食品科学
环境科学环境科学

背景情况:

挥发性有助于烟雾气味,是食品和饮料的关键质量指标.
传统的气体染色体质谱法 (GC-MS) 是缓慢的,在高需求时期 (如烟雾污染事件) 构成挑战.
现有的快速方法,如HS-SPMESH-DART-MS,与诸如挥发性类的低挥发性化合物作斗争.

研究的目的:

开发和验证一种快速的HS-SPMESH-DART-MS方法来分析挥发性.
适应HS-SPMESH-DART-MS用于检测葡萄和葡萄酒矩阵中的挥发性类等低挥发性化合物.
提高挥发性分析的吞吐量,这对于质量控制和事件后评估至关重要.

主要方法:

使用d6-Ac2O对挥发性的乙化以提高提取效率.
在衍生过程中利用性条件来测量自由和结合的形式.
采用并行头空间固相微提取与实时质谱直接分析 (HS-SPMESH-DART-MS).

主要成果:

实现了高吞吐量:大约60分钟内抽取24个样本.
已经证明了低检测极限 (<1μg L-1).
在烟雾污染样本中显示出良好的重复性 (3-6% RSD) 和与GC-MS的强相关性.

结论:

开发的HS-SPMESH-DART-MS方法是一种快速可靠的技术,用于葡萄和葡萄酒中的挥发性分析.
这种方法克服了传统GC-MS和低挥发性化合物的现有快速技术的局限性.
该方法适用于质量控制和有效评估烟雾污染影响.

关键词:

乙化乙化是一种环境的离子化环境.烟雾污染了我们的生活.挥发性醇是一种挥发性醇.葡萄酒葡萄酒葡萄酒葡萄酒

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