In this application note a robust, reliable method for the absolute quantification of twenty amino acids and the relative quantification of a further eighteen amino acids in human urine has been developed and evaluated.
High Performance from a compact design with rapid, reliable and reproducible quantitative data.
ACQUITY UPLC® HSS (High Strength Silica) T3 Columns contain the first and only 100% silica particle designed, tested and intended for use in applications up to 15000 psi/1000 bar. The ACQUITY UPLC® HSS particle is not an HPLC particle. High pore volume HPLC particles do not possess the mechanical stability necessary to withstand the high column packing and operating pressures of UPLC® separations. The first ligand chemistry in this UPLC®-certified column family utilizes T3 bonding in order to retain and separate polar organic compounds. ACQUITY UPLC® HSS T3 columns possess the superior polar-compound retention, aqueous mobile phase compatibility and ultra-low MS bleed of Atlantis® T3 columns. Easier Method Transfer Since Atlantis® T3 HPLC and ACQUITY UPLC® HSS T3 columns utilize T3 bonding, LC methods can be transferred from HPLC to UPLC® separations. Because Atlantis® and HSS particles are different substrates, some method modification and/or optimization may be required. A compelling benefit of UPLC® technology is the ease and speed at which this method optimization can occur since UPLC® separations offer greater resolution in less time. Moving from XBridge™ HPLC to ACQUITY UPLC® BEH columns is nearly seamless, as the hybrid particle substrates differ only in particle size. However, because of T3 bonding it should be straightforward to make simple adjustments to successfully transfer a separation from an Atlantis® T3 HPLC column to an ACQUITY UPLC® HSS T3 column.
The most powerful solution to the most critical need in separation science today.
Acquire, Analyze, Manage, and Share Mass Spectrometry Information MassLynx™ Software increases the speed at which you can convert your sample data into valuable knowledge. It provides you with the fundamental platform to acquire, analyze, manage, and share your mass spectrometry information. MassLynx intelligently controls any Waters mass spectrometry system, from sample and solvent management components to mass spectrometer and auxiliary detectors. MassLynx Software may acquire nominal mass, exact mass, MS/MS and exact mass MS/MS data. MassLynx’s Sample List is the core of the system. It maintains and consolidates the data on all of your samples. You also initiate any activities related to your sample from the Sample List. This "sample centric" approach simplifies the interaction with your LC/MS or GC/MS system, acquired data and processed results. Process Application-specific Data MassLynx Software features general purpose and specialized Application Managers that provide information for your specific MS analyses and data. Two come standard with MassLynx: QuanLynx™ for automated quantification included as standard with MassLynx OpenLynx™ for qualitative screening and identification Optional Application Managers can perform: Targeted quantitative analysis Mass-directed purification Metabolite identification Deconvolution of complex chromatograms Metabonomics & metabolomics Protein identification and protein characterization
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.
