光纤传感双波长导数光谱测定钬、铒

The Dtermination of Holmium and Erbium with the Derivative Spectrum of Fiber Optics Transmiting Dual-Wavelength

本文采用光导纤维传导光的信号，双波长导数光谱测定稀土混合物中的钬和铒，它们在０～３．０×１０￣（－３）ｍｏｌ／Ｌ浓度范围内，导数峰高与浓度之间呈良好线性关系，方法简便、快速，可用于稀土萃取过程中钬和铒的控制分析。

h In this paper a new mothod for the deermination of holnium and erbium from the mixed rare earth oxides by the derivative srectrum of dual-wavelength is proposed using the fiber optics transmiting the signal light.There is a good linear relationship between the peak heights of the derivative and the concentrations in the range of 0～3. 0×10￣(-3)mol/L. The method is simple,rapid and suitable to the control,analysis of holmium and erbium in the process of rare earth ex-traction.