The new model IATROSCAN MK6 with FPD (flame photometric detector) detects the hetero-atoms such as phosphorous and sulfur selectively. The simultaneous measurement by both FPD and FID (flame ionization detector) is possible. Organic compounds on the thin-layer are surely captured by means of two eyes of FID and FPD without omission. The addition of FPD to the former TLC-FID IATROSCAN with improved quantification and reproducibility enables to acquire a new wealth of analytical information.