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gc-ms：气相色谱-质谱法. 它是什么：gc-ms 结合气相色谱法和质谱法来分析挥发性化合物。 工作原理：gc 分离组分，ms 通过质荷比识别组分。 用例：非常适合检测挥发性有机化合物 (voc)、杀虫剂、药物和环境污染物。 为什么使用它：非常适合高灵敏度和复杂混合物。

为评估液晶单体（LCMs）的环境行为与潜在风险，来自河南师范大学等的研究人员开展了改进 GC-MS/MS 检测 LCMs 方法的研究。结果显示，该方法仪器定量限低至 0.02 pg?injection ?1 ，可检测低浓度 LCMs，且适用多种环境基质，助力相关研究。

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。

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 ...

This compendium offers a collection of application notes highlighting state-of-the-art GC-MS methods that can provide unmatched accuracy, sustainability and productivity for your lab. Download this ...