Abstract The detection of low halogen concentrations by atomic Laser Induced Breakdown Spectroscopy (LIBS) is usually difficult due to low intensity lines, which overlaps with matrix and due to an uncomfortable spectral region. Molecular LIBS (MLIBS) based on diatomic molecules of halogens with alkali earth element emission substantially increases sensitivity for halogen detection. We demonstrate that the Molecular Laser Induced Fluorescence (MLIF) method allows one to further increase the halogen detection approach. Practical application of the LIBS-MLIF method is demonstrated on Cl atom detection in concrete samples.

中文翻译：

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分子激光诱导荧光卤素检测

摘要 原子激光诱导击穿光谱 (LIBS) 检测低卤素浓度通常很困难，因为它的强度线较低，与基质重叠，并且光谱区域不舒服。基于具有碱土元素发射的卤素双原子分子的分子 LIBS (MLIBS) 显着提高了卤素检测的灵敏度。我们证明分子激光诱导荧光 (MLIF) 方法允许进一步增加卤素检测方法。LIBS-MLIF 方法的实际应用在具体样品中的 Cl 原子检测中得到了证明。