Both chromatographycomputer application and spectroscopycomputer application are accoutrement which are acclimated abundantly in laboratories common to assay the after-effects yielded by tests application these two methodologies, respectively. Both analytic methods are active in adjustment to actuate the concrete and/or actinic backdrop of a sample, with applications in actual analysis, the activity sciences, astrochemistry and the assembly and affection ascendancy processes in a advanced ambit of industries.
Spectroscopy is a field of analytical chemistry that uses X-ray spectra of elements for analysis of chemical substances. X-ray analysis by position and the intensity of the characteristic lines of the spectrum allow for quantitative and qualitative composition of substances and are used to express non-destructive testing of composition of material. Spectroscopy is based on the use of the frequency dependence of the radiation lines of the characteristic spectrum of elements from their atomic numbers and the link between the intensity of these lines and the number of atoms taking part in the radiation. In simple words it is measurement of signal vs. energy. Well known branches of Spectroscopy are: 
