摘要:
The present invention relates to an improved LCMS technology and its uses in methods for the selective identification and characterization of immunogenic pathogen associated epitopes, and the use thereof in vaccine development. One way of bridging the knowledge gap on T cell epitopes is to apply a new platform technology, ''immunoproteomics'', to directly assess the epitope display at the surface of antigen presenting cells by nanoscale mass spectrometry of extracted peptide samples. This is the only methodology that can provide unbiased insight into epitope features such as the exact molecular nature, diversity, abundance, dynamics and PTM of T cell epitopes originating from pathogen-derived proteins. Therefore, this platform technology and immunoproteomics should become an intrinsic part of vaccinology.
摘要:
The present invention relates to a method and apparatus for chromatographically analyzing each of a plurality of samples in detector, comprising an autosampler to contain a plurality of samples for chromatographic analysis and a plurality of chromatographic systems, each system comprising one or more pumps and one or more chromatography columns. A detector is included for detecting compounds in the samples from each of the chromatography systems along with a valve positioned between the detector and the plurality of chromatography systems, the valve permitting each sample to reach the detector in sequence. A computer control device is included which adjusts the introduction of samples from the autosampler into the plurality of chromatography systems as well as the position of the valve to sequentially separate and deliver compounds within the samples to the detector.
摘要:
A module (1) for dry loading and unloading of a chromatography resin, a chromatography column (3) and a method for using such a module (1). The column (3) comprises an inlet valve (39) adapted to load dry chromatography resin particles and an outlet port (35) for pumping the air from de column (3). The outlet port (35) is located above the inlet valve (39).
摘要:
A method for integrally fabricated MEMs devices with include micro or nanoparticles by providing a mixture (16) of sacrificial material (12) and a multiplicity of particles (10), disposing the mixture (16) on a substrate (14), fabricating a MEMs structure on the substrate (14) including at least part of the mixture (16), so that at least some of the mixture (16) is enclosed in the MEMs structure, removing the sacrificial material (12), and leaving at least some of the multiplicity of particles (10) substantially free and enclosed in the MEMs structure. The step of fabricating a MEMs structure is quite general and is contemplated as including one or a multiplicity of additional steps for creating some type of structure in which the particles (10), which may be microbeads or nanobeads, are included.
摘要:
A separation column is provided with a photopolymer component which, when irradiated, causes controlled porosity polymerization. A particularly preferred embodiment is wherein the separation medium is retained by a photopolymer frit, which can be reliably and reproducibly generated with controlled porosity.
摘要:
A chromatographic column for simultaneous purification of several compounds in a sample by dry column chromatography comprised by a plastic tube and containing a sorbent is described, wherein there is an empty volume on top of the sorbent large enough to hold the amount of developing solvent needed to develop the column, wherein the plastic material is transparent or semitransparent to UV and visible light and can be cut with a sharp object, and wherein the sorbent particle size is
摘要:
The high density filler type filtration equipment comprises a cylindrical column body (1) with an end flange (1a) near the upper and lower end. At the root of both ends of the end flange (1a), a circumferential groove (6b) is formed, where the end of a seal ring (6) is to be lockably inserted. A guide face (1c) is formed as the outer circumferential side face of the predetermined length in the direction of both sides of the end. A cover (2) which is lockably fitted to the end of the column body and on the circumferential edge of which there is provided a bolt hole (2b) which is opposite to the bolt hole (1b) of the end flange (1a). The process liquid flows in a fluid path (2a). Furthermore, there are provi ded an inner dent (2c) of the cover with a seal ring (6), stainless steel multi-hole plate (7) as a partition membrane, and a ring gasket (8). On the circumferential wall of the inner dent (2c) is a circumferential groove (2d) which acts as the fixture of the seal ring (6) when the outer circumferential flange is mounted and as a stopper for a stainless multi-hole plate (7). A tightening bolt (3) with a nut tightly fixes the column body (1) and the cover (2) with the seal ring (6) in between. This filtration equipment provides for a high density and uniform filling of the filler and can be easily assembled.
摘要:
Die erfindungsgemässe nachfüllbare Niederdruckkolonne für präparative Chromatographie weist einen Absorptionslösung enthaltenden rohrförmigen Kolonnenkörper /1/ auf, an dessen beiden Enden je ein Halsabschnitt /2/ ausgebildet ist und in jedem Halsabschnitt /2/ ein gegen axiale Bewegung befesitigter und einen Einströmkanal /3/ enthaltender Kern /4/ angeordnet ist, zwischen dem und der Wandung des Halsabschnittes /2/ mindestens ein elastischer Dichtring /7/ axial unverschiebbar angeordnet ist, und dem mittels einem an Halsabschnitt /2/ des Kolonnenkörpers /1/ lösbar befestigten Element /9/ in seiner Lage festgehaltenen Kern /4/ ist ein Filter- und Verteilerelement /5/ unmittelbar, im Weg des Einströmkanals /3/ angeschlossen.
摘要:
The present invention relates to an apparatus and method for chromatographically analyzing each of a plurality of samples comprising: (a) an autosampler to contain a plurality of samples for chromatographic analysis; (b) a plurality of chromatographic systems, each system comprising a chromatography column and at least one pump associated with the column to establish a flow of eluant from each column following a selected elution protocol; (c) a single detector for analyzing the eluant from each of said chromatographic systems; (d) a valve positioned between said detector and said chromatographic systems, said valve selectively permitting flow of eluant from each chromatography system to reach the detector in sequence; and (e) a computer control device that considers the samples and as input information an anticipated data collecting window for each sample at the detector, the computer control device selecting samples for introduction to said plurality of chromatographic systems and controlling the valve to selectively direct eluant flow from said plurality of chromatographic systems to the detector, where the selecting of samples and the controlling of the valve is based on the input information of the samples such that each sample is sequentially analyzed during its data collection window by the detector.