本研究针对东方甜瓜香气活性物质鉴定技术不足的问题，采用hs-spme结合gc?×?gc-o-tof-ms和gc-ms技术，结合aeda、香气重组与缺失实验，系统分析long4（果香型）和zhcg（青瓜香型）的挥发性成分差异。研究发现124种挥发性物质中32种具有香气活性，其中8种酯类物质主导long4的果香特征，7种醛醇类物质决定 ...

在这篇入门指南中，探讨了 gc×gc-ms 的各个方面，包括使用低温调制和流量调制的基本原理和方法优化。讨论了最先进的仪器设备和数据处理工具，包括 gc×gc-ms 与其他气相色谱技术相比的优势和局限性。探索了一系列应用，并对该领域的未来进行了展望。

With very low bleed characteristics, bonded and cross-linked HP-5ms Ultra Inert is solvent rinsable and ideal for GC/MS. The column is equivalent to USP phase G27 and features improved signal-to ...

SANTA CLARA, Calif., August 15, 2024--Agilent Technologies Inc., (NYSE: A) today announced the release of its new Agilent J&W 5Q GC/MS Columns, representing a major advance in gas chromatography ...

Agilent J&W GC/MS 5Q columns provide exceptional peak symmetry for active analytes and set a new industry standard for minimal column bleed, enabling high sensitivity, maintaining accuracy and ...

Agilent Technologies Inc., today announced the release of its new Agilent J&W 5 Q GC/MS Columns, representing a major advance in gas chromatography/mass spectrometry column technology. "This ...

These new highest quality GC columns offer Bruker's GC and GC-MS customers a wide variety of column chemistries. The Bruker GC CARE columns and consumables are ideally designed for applications in ...

The LTM Column module contains a patented design which heats and cools the column very efficiently for significantly shorter analytical cycle times compared to conventional air-bath GC oven ...

Agilent Technologies A introduced an advanced gas chromatography/mass spectrometry (GC/MS) column technology product namely J&W 5Q GC/MS Columns, in order to expand its Life Sciences and Applied ...