Method for quickly analyzing content of rare earth in rock weathering crusts by using visible light-near infrared reflection spectrometer
A reflection spectrum and near-infrared technology, applied in the field of analysis, can solve the problems of long experimental period and high price, and achieve the effect of low detection limit and high accuracy
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[0024] Example 1:
[0025] The sample comes from the rock weathering crust of an ion-adsorbed rare earth deposit in Ganzhou City, Jiangxi Province. In this example, we used the Analytical Spectral Devices (ASD) FieldSpec-3 spectrometer to measure the reflectance spectroscopy and analyze the results of the rare earth content of the weathering crust sample. Compare with ICP-MS analysis results.
[0026] Proceed as follows:
[0027] 1. After the sample is naturally air-dried under laboratory conditions, select about 10g and place it in a container 0.5 cm deep and 1.5 cm in diameter, and use a glass sheet to flatten the surface.
[0028] 2. Analytical Spectral Devices (ASD) FieldSpec-3 spectrometer is used for reflectance spectroscopy measurement, where the spectral range is 350-1000nm. During the measurement process, the spectrometer is preheated for 30 minutes, and then the standard white board is used for spectrum calibration.
[0029] 3. Measure the sample twice from different directi...
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