Bioanalysis concerns the investigation of xenobiotics (such as drugs) and endogenous compounds (such as biomarkers) in organic frameworks. Both xenobiotics and biomarkers envelop moo atomic weight and tall atomic weight  analytes. Concurring to the expository reason, the test can take after two unmistakable sorts of techniques: untargeted and focused on examination. The previous approach (untargeted) is primarily connected to get a greatest of data from the test to separate connect- or intra-individual varieties and distinguish potential biomarkers. After approval of a unused biomarker, the objective is as a rule towards quantitation with a most extreme of affectability, selectivity, and repeatability, as required in focused on examination.