X射线衍射分析氧化铁脱硫剂中γ-FeOOH的含量  

Quantitative Analysis ofγ-FeOOH in Iron Oxide Desulfurizer by X-ray Diffraction Method

作　　者：张晓慧 何月玥 王轩 朱德明 熊绪茂[1] 胡斌[1] ZHANG Xiao-hui;HE Yue-yue;WANG Xuan;ZHU De-ming;XIONG Xu-mao;HU Bin(Lanzhou Institute of Chemical Physics,Chinese Academy of Science,Lanzhou 730000,China;Hebei Gas Storage Branch,North China Petroleum Administration Bureau,Langfang 065000,Hebei China)

机构地区：[1]中国科学院兰州化学物理研究所,甘肃兰州730000 [2]华北石油管理局有限公司河北储气库分公司,河北廊坊065000

出　　处：《分析测试技术与仪器》2020年第4期277-281,共5页Analysis and Testing Technology and Instruments

摘　　要：采用X射线衍射分析技术,建立了氧化铁脱硫剂中γ-FeOOH的检测方法.在质量分数为30%~100%的测定范围内,γ-FeOOH定量衍射峰积分强度和其质量分数呈现良好的线性关系,线性相关系数为0.9977,为不同晶型FeOOH的含量测定提供了研究思路.对已知含量的γ-FeOOH脱硫剂样品进行测定,相对误差3.7%.方法可以定性定量分析脱硫剂中FeOOH的多态混合物,对于进一步研究脱硫剂中FeOOH多态混合物具有重要意义.方法准确可靠,操作简单,具有一定的可行性,为生产企业进行氧化铁脱硫剂中γ-FeOOH定性定量分析提供了参考.A method for the detection ofγ-FeOOH in iron oxide desulfurizing agent has been established using X-ray diffraction analysis.The integral intensity of the quantitative diffraction peak ofγ-FeOOH exhibited a good linear relationship with its percentage in the range of 30%to 100%.The linear correlation coefficient was 0.9977,which provided a research idea for the determination of FeOOH content in different crystal types.A sample ofγ-FeOOH desulfurizer with known content was also determined with a relative error of 3.7%.Using this method,the polymorphic mixture of FeOOH in the desulfurizer sample can be analyzed qualitatively and quantitatively,which is of great significance for the further study of the polymorphic mixture of FeOOH in the desulfurizer.The method is accurate,reliable,easy to operate and feasible to some extent.It provides a reference for the qualitative and quantitative analysis ofγ-FeOOH in iron oxide desulfurizer.

关 键 词：氧化铁 外标法 脱硫剂 X射线衍射 

分 类 号：O657.34[理学—分析化学]