Molecular spectroscopic detection plays a crucial role in gas chromatography (GC). Some detectors constitute element-selective spectroscopy, where an element-containing species generates the detected signal, e.g. flame photometric detection (S, P, Cu); chemiluminescence detection (S, N). These respond with selective response, usually with excellent analyte detectability and reduced matrix interferences. Classical molecular spectroscopic detectors – Fourier transform infrared, nuclear magnetic resonance, ultraviolet – respond by giving a spectrum characteristic of the (intact) molecule. Molecular structure response plays multi-faceted roles: it produces a unique spectrum of a molecule, provided it is resolved by the column and presented to the detector as a single compound; or the chromatogram can be generated by responding to the total signal, or selectively to a given component of the signal. This review summarises the response, sensitivities, applicability, and recent literature reports of molecular spectroscopic detection. Hyphenation with dual detection and brief comments on multidimensional GC is included.

分子光谱检测在气相色谱（GC）中起着至关重要的作用。一些检测器构成元素选择光谱，其中包含元素的物质会生成检测到的信号，例如火焰光度检测（S，P，Cu）；化学发光检测（S，N）。这些响应具有选择性响应，通常具有出色的分析物可检测性和减少的基质干扰。经典的分子光谱检测器-傅立叶变换红外，核磁共振，紫外线-通过给出（完整）分子的光谱特征做出响应。分子结构响应起着多方面的作用：只要由色谱柱解析并以单一化合物的形式提供给检测器，它就可以产生分子的独特光谱；或可以通过响应总信号或选择性响应信号的给定分量来生成色谱图。这篇综述总结了分子光谱检测的响应，敏感性，适用性和最新文献报道。