ResourceLife Sciences
High Sensitivity SISCAPA-Based Peptide Quantitation Using UHPLC and the 6490 QQQ with iFunnel Technology
16 Apr 2014Assays that are both specific and quantitative for target proteins and peptides are critical for preclinical validation of putative biomarkers, particularly those at low concentrations in plasma, where absolute instrument sensitivity has been a key limitation. This application note demonstrates the use of an integrated, automated, high-throughput MS-based protein assay platform.
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ImmunologyImmunological techniques measure and characterize immune responses. Immunology kits and analysis systems often use techniques such as ELISA, radioimmunoassay (RIA) and immunodiffusion assays, Immunohistochemistry, and flow cytometry. Immunologists use equipment such as flow Cytometers, plate readers, plate washers and fluorescent microscopes.Protein PurificationProtein purification is a vital step in drug discovery, therapeutics, biotech and life science research. The purification process typically involves subcellular or membrane protein extraction with cell lysis kits, separation of proteins from cell debris by filtration or spin columns, and the isolation of proteins of interest from other proteins and impurities with affinity purification (including fusion protein tags and antibody binding proteins A, G and L), immunoprecipitation or chromatographic methods, such as ion exchange, size exclusion and immobilized metal affinity chromatography. All purification methods come in multiple formats for your laboratory needs, including agarose or magnetic beads, resins, columns and filter plates. Find the best protein purification equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.BiomarkersBiomarkers are biological markers which can be measured and evaluated to indicate a biological state. The use of biomarkers in research and diagnosis can indicate a normal or disease state or drug response of cells / tissues. Biomarkers include genetic markers, cell surface markers such as antigens, antibodies or receptors and secreted molecules such as cytokines. An assay system is required for identification of biomarkers. :Clinical ChemistryBiochemistry (or clinical chemistry) involves the analysis of bodily fluids using chemical tests. Techniques used include HPLC, chromatography, spectroscopy, mass spectrometry, immunochemical, electrophoresis, turbidometric / spectrophotometric assay, MRI and ISE analysis. Tests are often carried out on plasma or serum but urine (urinalysis) and fecal specimens are also processed.Clinical Mass SpectrometryMass spectrometry is emerging as a superior method of analysis over the longstanding, gold standard of immunoassay. Clinical mass spectrometry systems are increasingly accessible to medical laboratories and are capable of providing results with more speed and less expense than traditional methods. From simple mass spectrometers to IVDR class A compliant, highly sophisticated systems performing liquid chromatography tandem mass spectrometry (LC/MS/MS), find the latest product news, reviews and resources to make a purchasing decision for your laboratory. Biomarker DiscoveryClinical biomarkers refer to substances related to known medical conditions that can be accurately measured <i>in vitro</i>. Biomarkers can be used to diagnose presence of a disease and indicate disease severity. The discovery of new biomarkers is incredibly valuable in the field of diagnostics.