Chromatographic techniques, including computerized capillary gas chromatography-mass spectrometry and high-performance liquid chromatography with rapid scanning detection are important parts of a multicomponent analytical system designed for the diagnosis of human metabolic disorders. The usefulness of such a system is exemplified by the finding of a replacement case with the very rare disease hypersarcosinuria and therefore the detection of bizarre metabolites during a case of phenylketonuria. GC/MS analysis is an analytical testing method that mixes features of gas chromatography and mass spectrometry to spot different substances within a liquid or volatile sample. GC/MS is usually wont to identify unknown samples, contaminants, or residual solvents.