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Analysis of extracts produced using refluxing diethyl ether in a Soxhlet apparatus (100 per replicate; N=3) was conducted by single ion monitoring GC/MS (SIM GCMS, m/z = 198 e.
Selected ion data collection is even more sensitive than single ion monitoring because ion abundance is measured only for a predetermined ion rather than all ions across the whole spectrum.
Trinitrotoluene (TNT) was detected by single ion monitoring.

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