sniper711220
Materials
Hi
I have several copper-tin-lead alloy standards with varying Pb contents(5, 10, 15, 20).
I analyzed them by the SEM-EDS, but it keeps giving me lower Pb concentrations(around 2, 5, 7, 10 individually).
The totals are good around 100 precents, but just inaccurate(tin is the same, bur Pb is lower and Cu is higher than their real values.
I use the default internal calibration (leaded glass) to calibrate Pb element.
Have anyone encountered such a problem and how to solve it ?
Thanks
Gary
I have several copper-tin-lead alloy standards with varying Pb contents(5, 10, 15, 20).
I analyzed them by the SEM-EDS, but it keeps giving me lower Pb concentrations(around 2, 5, 7, 10 individually).
The totals are good around 100 precents, but just inaccurate(tin is the same, bur Pb is lower and Cu is higher than their real values.
I use the default internal calibration (leaded glass) to calibrate Pb element.
Have anyone encountered such a problem and how to solve it ?
Thanks
Gary