result is not so convincing...
Nickel/Chromium is the only anomaly that seems interesting.
Here is Excel spreadsheet of pre/post fuel element analysis to play with. Have sorted by pre % Atmo & % Mass.
His pre fuel may not be well mixed nor clean (read he used mortar/pestle to mix), so small size samples may vary depending on where in the pre/post fuel mix total volumn it was taken. No Lithium in pre fuel sure looks strange but it shows up in post ash, so maybe variable depending on where in total volume of fuel the samples were taken.
Fuel analysis sorted by per/post atom & mass.