This research has analyzed aroma compounds that are components in the petals of roses and rhizome of the Calamus By bringing example the two about 20 g. To perform the extraction With extraction method With acid solution and bass. Concentration 0.05 Normality Volume 150 ml. Value adjustment pH. Aqueous solution extracted have neutral harshest. Then the extraction of aroma compounds out of dichloromethane substance. Perform the analysis with tricks gas chromatograph-mass spectrometer (GC-MS). Extracted Have more than 122 kinds. The substance can identify identity up to 40 types and the substance not can identify identity to number 82 types amd aroma compounds are found 2-Methyl-1-Pyrroline. It is an element in plants both types. from analyze DETERMINATION of aromatic substances 2-Methyl-1-Pyrroline. extraction perform from acid solution with tricks gas chromatograph-mass spectrometer (GC-MS). found volume and volume In the range 12.22-23.994 mg/kg and The extraction with Machine Sequestration Compounds Onion in laboratory Is equal 19.55 mg/kg