For table 1 of the patent, you should just ignore the Δ values in the last column and use values from the previous column instead. All samples are 18k gold, so the reduction in gold mass should be (and actually is)…
For table 1 of the patent, you should just ignore the Δ values in the last column and use values from the previous column instead. All samples are 18k gold, so the reduction in gold mass should be (and actually is)…