CPC G01N 23/222 (2013.01) [G01N 23/223 (2013.01); G01N 33/2858 (2013.01); G01N 2223/076 (2013.01); G01N 2223/0745 (2013.01); G01N 2223/301 (2013.01); G01N 2223/305 (2013.01); G01N 2223/616 (2013.01); G01N 2223/617 (2013.01)] | 20 Claims |
1. A method for predicting the presence of rare earth elements (REEs) in a feedstock, comprising:
measuring a feedstock sample using a spectrum analyzer to generate measurements of elements of interest with a lower atomic weight than REEs;
correlating the measurements with a model; and
predicting presence of one or more REEs based at least in part on the correlation.
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