The following are several commonly used instruments for rare earth element detection:
1. Inductively coupled plasma mass spectrometer (ICP-MS): This is one of the most commonly used instruments for measuring the content of rare earth elements. ICP-MS combines the principle of inductively coupled plasma source and mass spectrometer, and can analyze ultra-low level rare earth elements. High sensitivity, wide measuring range of elements and low detection limit.
2. Atomic Fluorescence Spectrometer (AFS): AFS can also be used to measure rare earth elements. The instrument uses the fluorescence radiation generated by the excitation of rare earth elements in the sample for analysis, and has high detection sensitivity and selectivity.
3.x-ray fluorescence spectrometer (XRF): This instrument is suitable for measuring solid samples of rare earth elements, such as rocks, ores and soil. XRF instrument can quickly determine the contents of various elements by analyzing the fluorescence radiation generated by X-ray irradiation of samples.
4. High performance liquid chromatography (HPLC): HPLC combines chromatographic technology and spectral detection, and can be used for the separation, quantification and detection of rare earth elements. HPLC is particularly useful in measuring organic complexes and rare earth complexes.
Besides the above instruments, there are other instruments and technologies that can be used for the determination of rare earth elements, such as inductively coupled plasma emission spectrometer (ICP-OES), hydride generation-atomic absorption spectrometer (HGAAS), voltammetry, etc.