Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China.
J Am Soc Mass Spectrom. 2010 Jul;21(7):1227-34. doi: 10.1016/j.jasms.2010.02.030. Epub 2010 Mar 31.
A novel method has been developed that allows the direct speciation analysis of iron oxides based on a modified laser ionization orthogonal time-of-flight mass spectrometer. Time resolved mass spectra were acquired for the investigation of elemental ions and oxide ions generated by a laser ionization source. Speciation methodologies, including the identification of characteristic ions and the use of ion abundance ratios were evaluated for the differentiation of the oxides. The influence of operating parameters on the distribution of cluster ions was investigated, and their mechanism of formation discussed.
已经开发出一种新方法，该方法基于改进的激光电离正交飞行时间质谱仪，可直接对氧化铁进行形态分析。为了研究激光电离源产生的元素离子和氧化物离子，获得了时间分辨质谱。为了区分氧化物，评估了形态分析方法，包括特征离子的识别和离子丰度比的使用。研究了操作参数对团簇离子分布的影响，并讨论了它们的形成机制。
