The ILSA is a three-step method for interpreting a set of mixture is-CID mass spectra using a library of pure compound is-CID mass spectra (see Figure ). The algorithm requires a lowfragmentation mixture is-CID mass spectrum and can handle as many additional mixture fragmentation is-CID mass spectra as is reasonable for the considered search library. In our work, we employ the NIST DART-MS Forensics Database that contains three is-CID mass spectra (low-, mid-, and high-fragmentation) for each pure compound entry.