Qualitative determination of calcium chloride and magnesium chloride was established by ESI-MS spectroscopy. The spectra are easy to read and their actual state of existence in aqueous medium, are characterized.

• 摘要用ESI源质谱对氯化镁和氯化钙进行了定性的检测，所得谱图更加全面直观地表徵了氯化钙和氯化镁在水溶液中的存在形式。