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Ultra-Fast Analysis of Allergens using Capillary Electrophoresis Coupled to Mass Spectrometry and UVPD

24 Nov 2016

The main goal of this work was to develop a simple and fast strategy allowing simultaneously the identification of allergens and the authentication of fish species. The identification of proteins in food matrices that cause sensitization in individuals or allergic reactions in those individuals already sensitized, represent a major concern for the food industry. Here we explore the application of CE/MS/MS as an accurate and sensitive way to rapidly test for protein allergens in food.

Thermo Scientific™ Orbitrap Fusion™ Lumos™ Tribrid™ Mass Spectrometer

Thermo Fisher Scientific

Test new limits of detection, characterization and quantitation with the latest Tribrid™ mass spectrometer. The Thermo Scientific™ Orbitrap Fusion™ Lumos™ Tribrid™ Mass Spectrometer is designed to expand performance in advanced proteomics, biopharma and metabolomics applications, including quantitation using isobaric tags, low level PTM analysis, data independent acquisition (DIA), and top down proteomics. The new instrument features enhanced sensitivity resulting in improved analyte detection, characterization and quantitation, enabling scientists to perform more comprehensive sample analyses faster and with better accuracy than ever before.   Novel Orbitrap Fusion Lumos MS Features: Novel high-sensitivity API interface combines a High Capacity Transfer Tube and an Electrodynamic Ion Funnel for increased ion flux and lower limits of detection Advanced Active Beam Guide prevents neutrals and high velocity clusters from entering the resolving quadrupole Advanced Quadrupole Technology combines high selectivity and efficiency of transfer for selected ions symmetrically across the isolation window Advanced Vacuum Technology improves transmission of high molecular weight ions to the Orbitrap analyzer Novel ETD HD—high dynamic range ETD provides significantly increased fragment ion coverage Established Tribrid MS Features: Tribrid architecture — includes quadrupole mass filter, linear ion trap and Orbitrap mass analyzers Ultrahigh resolving power up to 500,000 FWHM, with isotopic fidelity up to 240,000 FWHM at m/z 200 Acquisition rates of up to 20 Hz for both Orbitrap and linear ion trap MSn analyses Full parallelization of MS and MSn analyses with intelligent ADAPT™ (All Dynamically Available Parallelizable Time) technology Synchronous Precursor Selection (SPS) for MS and MSn experiments significantly increases the number of peptides and proteins identified and improves quantitative accuracy when using isobaric mass tags Flexibility of fragmentation — CID, HCD and optional ETD and EThcD available at any stage of MSn with detection in either the Orbitrap or linear ion trap detector enables detailed structure determination of metabolites, glycans and other small molecules Universal Method provides maximal peptide identifications without method optimization for samples of unknown concentration, reducing sample and instrument time requirements for routine peptide identifi cation experiments Intuitive and flexible drag-and-drop user interface simplifies method development and enables unique and complex workflows

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Capillary ElectrophoresisCapillary electrophoresis (CE) is used to separate molecules based on charge, size and hydrophobicity. Pressure, voltage or a vacuum is used to introduce the sample to fused silica capillaries. Fluorescence, UV/Vis, UV or diode array detectors are used to visualize components. Types of CE systems include capillary electrochromatography (CEC), capillary zone electrophoresis and capillary gel electrophoresis. Find the best capillary electrophoresis equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Mass SpectrometryMass spectrometry (MS) is a powerful analytical technique used to identify and quantify molecules based on the mass-to-charge ratio of gas-phase ions. It provides detailed information about the structure, composition, and properties of compounds and is widely used across fields such as environmental monitoring, materials science, drug discovery and development, food and beverage testing, and wider chemical research. Key MS techniques include tandem mass spectrometry (MS/MS), liquid chromatography–mass spectrometry (LS-MS) and inductively coupled plasma (ICP-MS). Choosing from these wide range of techniques and technologies can be a daunting task, so keep up to date with scientific applications, performance expectations, and customer reviews here all in one place. Visit our product directory to receive quotes direct from the manufacturer. 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.Protein DetectionProtein detection techniques are essential for understanding protein expression, localization, and function. Methods such as western blotting, ELISA, and mass spectrometry are commonly used in research and diagnostics. Browse our peer-reviewed product directory to find the best tools for protein detection, compare products, check reviews, and get pricing directly from manufacturers.Allergen
Ultra-Fast Analysis of Allergens using Capillary Electrophoresis Coupled to Mass Spectrometry and UVPD