High Definition Multiple Reaction Monitoring: The Application of Quadrupole Ion Mobility Time-of-Flight Mass Spectrometry for Targeted Proteomics Studies

10 Oct 2013

This application note shows the benefits of the SYNAPT G2-Si System for the quantification of proteins and peptides in a new High DefinitionR MRM (HD-MRM) mode, where T-Wave™ ion mobility separations are used with MS/MS mode on a quadrupole time-of-flight mass spectrometer, to provide a highly sensitive and selective quantitative assay with maximum response for all product ions of a molecular peptide ion in a single acquisition.

SYNAPT G2-Si HDMS

Waters

The Waters SYNAPT G2-Si High Definition Mass Spectrometry provides complete characterization of complex mixtures and molecules with unique levels of MS performance, industry leading informatics and unparalleled platform versatility.Through high-efficiency T-Wave™ ion mobility you can get superior separation, enhance the peak capacity, specificity and sensitivity of your analysis and transform your targeted and untargeted workflows. Ultimate UPLC/MS/MS performance, data independent and data dependant T-Wave IMS solution, CID and ETD fragmentation capabilities and a wide range of experimental options. This system gives you additional dimension of separation, based on molecular size and shape. It delivers a third dimension to your analysis, proven to transform your analytical perspective whatever the application.

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TargetLynx

Waters

The TargetLynx™ Application Manager automates sample data acquisition, processing and reporting for quantitative results.It incorporates a range of confirmatory checks that identify samples that fall outside user-specified or regulatory thresholds. Identify Non-compliant Samples TargetLynx rapidly identifies and flags samples where: Analytes are above a specified maximum reporting level (MRL) Analyte confirmatory ion ratios are outside specified limits One or more analyte signal-to-noise ratios are below a defined value An analyte retention time or relative retention time is outside limits An analyte concentration is below set LOD and LOQ thresholds The standard deviation of response for QC standards exceeds a defined value The blank response is too high The coefficient of determination (r2) of the calibration curve exceeds a defined value LC/MS & LC/MS/MS and GC/MS & GC/MS/MS Use TargetLynx to quantify and confirm both LC/MS & LC/MS/MS and GC/MS & GC/MS/MS data. This data may be selected ion monitoring (SIM), multiple reaction monitoring (MRM), or full scan/full spectrum. In the case of full scan/spectrum data, extracted ion chromatograms are used for quantification. Ensure Regulatory Compliance The demand by regulatory authorities for assurance of confirmation in quantitative analysis continues to increase. To ensure cost-effective compliance, TargetLynx offers software that gives you confidence in your results and eliminates time-consuming, costly manual checks.

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High Definition Multiple Reaction Monitoring: The Application of Quadrupole Ion Mobility Time-of-Flight Mass Spectrometry for Targeted Proteomics Studies