- Edited
Hi folks,
Just a (quick?) question this time around. I am looking for documentation or an explanation of how the various spline options in Iolite work. In the past I have used the default spline_autosmooth for trace element data reduction without issue. However, now I am doing 87Sr/86Sr isotope ratio data reduction using a bracketing standard for correction. Iolite is consistently overcorrecting my samples (actually secondary standards) and producing final results that are too radiogenic. For solution MC-ICP-MS 87Sr/86Sr data, I would just build a linear model (or models) of how my bracketing standard is behaving and apply a final correction or corrections in Excel. For the laser ablation Sr work, I am trying to keep everything in Iolite since in principal it can save me the trouble of doing the final corrections manually. I think the spline fit to my standards may be part of the problem but I do not have an adequate understanding of what I Iolite is actually doing with the various options available.