Error propagation and data reduction for the double spike technique in mass spectrometry.
The workings of this package are described in:
Rudge J.F., Reynolds B.C., Bourdon B. The double spike toolbox (2009) Chem. Geol. 265:420-431 https://dx.doi.org/10.1016/j.chemgeo.2009.05.010
and at:
https://johnrudge.com/doublespike
This is a standard python 3 package, which can be installed using pip:
pip install doublespike