Amara Diallo FEI Titan STEM 2026-03-27T17:39:18-06:00 2026-03-27T17:41:02-06:00 We placed crystals of different compounds to explore the possibility of fingerprinting them through EELS. Here are representative datasets of 7 different compounds: b-cyclodextrin hexacarboxy cyclohexane tannin TH-15 peptide TH-27 peptide two different forms of piroxicam The datasets were collected at EMAT, using a monochromated FEI Titan 3 TEM, within the scope of an EUSMI request. Data source: <a href="https://doi.org/10.5281/zenodo.3975762">https://doi.org/10.5281/zenodo.3975762</a> CC BY 4.0.

3975762 Electron energy loss spectra of several organic compounds. 2026-03-27T17:39:18-06:00 sample-1 ENFINIUM Parallel dispersive Spectrum image EELS EELS 1 Gain Normalized 0.0 100.0 0.0 1 15.998975781250003 DIFFRACTION FEI Tecnai nexusLIMS.extractors.plugins.dm3_extractor 2.6.1.dev0 29.500000000000004 2D Array TH_15.dm3 /3975762/TH_15.dm3 DM3 EELS spectrum image of TH-15 peptide, 164×170 spatial pixels /3975762/TH_15.dm3.thumb.png 120000.0 130 (164, 170, 2048) EELS_Spectrum_Imaging 0.0005 0.0005 2.32.888.0 STEM 2026-03-27T10:43:41.835021-06:00 SCANNING 47 0.0005 170 164 5000.0 2026-03-27T17:40:34-06:00 TH_27.dm3 /3975762/TH_27.dm3 DM3 STEM-EELS spectrum of TH-27 peptide /3975762/TH_27.dm3.thumb.png 120000.0 (142, 226, 1000) STEM_EELS Calibrated Post-acquisition STEM 5000.0 2026-03-27T22:59:49.162602-06:00 SCANNING 2026-03-27T17:39:40-06:00 b-cyclodextrin.dm3 /3975762/b-cyclodextrin.dm3 DM3 EELS spectrum image of beta-cyclodextrin, 184×112 spatial pixels /3975762/b-cyclodextrin.dm3.thumb.png 120000.0 130 (184, 112, 2048) EELS_Spectrum_Imaging 0.0005 0.0005 2.32.888.0 STEM 2026-03-27T10:43:46.517919-06:00 SCANNING 35 0.0005 112 184 5000.0 2026-03-27T17:39:18-06:00 hexacarboxy cyclohexane.dm3 /3975762/hexacarboxy cyclohexane.dm3 DM3 /3975762/hexacarboxy cyclohexane.dm3.thumb.png 120000.0 130 (172, 146, 2048) EELS_Spectrum_Imaging 0.001 0.001 2.32.888.0 STEM 2026-03-27T10:43:52.454702-06:00 SCANNING 43 0.001 146 172 5000.0 2026-03-27T17:39:50-06:00 piroxicam_form_1.dm3 /3975762/piroxicam_form_1.dm3 DM3 /3975762/piroxicam_form_1.dm3.thumb.png 300000.0 1 (100, 100, 2048) EELS_Spectrum_Imaging 0.02 0.02 3.23.1508.0 TEM 2026-03-27T10:43:56.301141-06:00 DIFFRACTION 350 0.02 100 100 0.006832000000000001 -5.079359999999999 -16.242952000000002 -130.73109000000002 29.500000000000004 2026-03-27T17:41:02-06:00 piroxicam_form_2.dm3 /3975762/piroxicam_form_2.dm3 DM3 /3975762/piroxicam_form_2.dm3.thumb.png 300000.0 1 (100, 100, 2048) EELS_Spectrum_Imaging 0.02 0.02 3.23.1508.0 TEM 2026-03-27T10:43:59.136304-06:00 DIFFRACTION 350 0.02 100 100 0.007320000000000001 -28.9926 33.327448 -155.21706 29.500000000000004 2026-03-27T17:40:26-06:00 tannin.dm3 /3975762/tannin.dm3 DM3 /3975762/tannin.dm3.thumb.png 120000.0 130 (197, 114, 2048) EELS_Spectrum_Imaging 0.001 0.001 2.32.888.0 STEM 2026-03-27T10:43:38.270730-06:00 SCANNING 39 0.001 114 197 5000.0 2026-03-27T17:40:08-06:00