ELEMENT = Cu

all samples with negative results 86 samples

all samples with positive results 84 samples

samples with element contents between:

96 - 216,4 7 samples

216,4 - 336,8 7 samples

336,8 - 457,2 1 samples

457,2 - 577,6 3 samples

577,6 - 698 5 samples

698 - 818,4 2 samples

818,4 - 938,8 6 samples

938,8 - 1059,2 7 samples

1059,2 - 1179,6 5 samples

1179,6 - 1300 4 samples