Applications of extractive electrospray ionization (EESI) in analytical chemistry

- Analysis of difficult samples by extractive electrospray ionization (EESI).
- Salt removal based on solubility in the EESI solvent.
- Very soft ionization of radical species with chloroform analyte solvent.
- Fully quantitative analysis with excellent linearity 103 concentration range.
- Surface charging effects produce ESI-like results under certain conditions.