Hi everyone,
I’d like to apply separate calibration curves for different signal-intensity ranges in the 3-D trace-element DRS.
Using a single linear regression for all external standards causes trouble: at high count rates, pulse-counting losses or the switch to analog mode make the response non-linear, and even when those effects are minor a single line can still return negative concentrations for low-intensity samples.
Does iolite allow segmented calibration, or is there another workaround? Any advice would be greatly appreciated.