Abstract:
The present invention relates to a method for simulating a chromatographic run on a chromatograph (5) with a computation device (3) comprising at least one processor (7) and an associated digital memory (9), wherein the chromatographic run uses a mobile phase (31) comprising a mixture of at least two eluent constituents having different chromatographic properties and forming an eluent profile (33). The invention also relates to a computer program for performing the method, and an apparatus comprising a computation device and a chromatograph for performing the method.
Abstract:
There is described a rection vessel (25) for microwave heating of the load (5 in said vessel. The reaction vessel has a main axis and is provided with at least one reaction chamber in fluid connection with an inlet and an outlet. The reaction vessel is adapted to be irradiated with microwaves. The reaction vessel comprises adjusting means (4,16) to adjust the position, shape and/or volume of the reaction chamber in order to optimise the heating conditions of the load in said reaction chamber, during microwave irradiation.
Abstract:
The present invention relates to an apparatus, method and computer program for determining the identity of at least one nucleotide in a nucleic acid molecule, by way of sequentially detecting a measurable quantity of a reaction when the nucleotide is incorporated to form a base pair with a complementary base in the nucleic acid molecule. Means (15) is arranged for provision of nucleotides to the nucleic acid molecule, a detector (10) is adapted to determine whether or not a dispensated nucleotide is incorporated in the nucleic acid sequence of the molecule, registration means (20) is provided for storage of the detected nucleic acid sequence, a catalogue (30) includes a retrievable plurality of possible sequences of the detected and registered nucleic acid sequence, the catalogue being accessible for a comparing means (40). The comparing means is adapted to retrieve and compare the detected registered nucleic acid sequence, which is stored in the registration means, with the possible sequences of the catalogue. Moreover the invention is characterised in that dispensation control means (50) is provided to adapt the order of following dispensations in response to the correspondence, which is established by the comparing means, between the nucleotides of the detected and registered sequence and the catalogue of possible sequences.
Abstract:
The present invention relates to a flow-through device comprising at least one separation column wherein a first packing component, which comprises particles of alumina and/or silica, and a second packing component, which comprises a powder of one or more hygroscopic salts are provided. The two packing components may be blended or layered in the device, which may comprise a single tube or a plurality of tubes arranged in a plate format, such as the wells of a multiwall plate or tubes in a rack. In addition, the invention relates to a method for removing one or more matrix components, such as pigments, from a biological sample, by passing said sample across a first packing component, which comprises particles of alumina and/or silica, and a second packing component, which comprises a powder of one or more hygroscopic salts.
Abstract:
The present invention relates to a method for separating metal ions from a liquid, which method comprises contacting liquid comprising metal ions with non-functionalized cellulose, adsorbing the metal ions to the cellulose, and separating the liquid from the cellulose, wherein the liquid is an essential oil.
Abstract:
The invention relates to a method of cleaving a linker molecule attaching a peptide, polypeptide or a small protein to a solid phase comprising contacting the attached peptide, polypeptide or small protein with water under subcritical conditions. An acid may be added to the water, and the method is advantageously microwave supported.
Abstract:
The present invention relates to a sorbent for extracting polar components from a sample where the sorbent comprises a cross-linked polymer comprising nitrogen containing cyclic compounds, for example1-vinylimidazole and/or 4-vinylpyridine. The invention further relates to a method of producing said sorbent and the use of the sorbent.
Abstract:
The present invention provides an apparatus that can be used to connect a flash chromatography instrument to a fraction collector and a mass detector to perform mass directed flash chromatography, said apparatus comprising a by-passable delay loop and an active splitter, and to a system comprising such an apparatus and to methods. The invention further relates to a method for separation of a sample into components and mass- directed collection of at least one of said component in at least one separate fraction, and to a computer program comprising instructions inducing a computer to perform a method for controlling a fraction collector in a chromatography system.
Abstract:
Devices and methods for performing microwave-assisted chemical synthesis including heterogeneous starting materials, comprising a reaction vessel (9), a microwave source (3) for generating microwave electromagnetic radiation, means for transporting microwave electromagnetic radiation (5) to said reaction vessel (9), at least one liquid reservoir (45) containing a liquid component, means for transporting a liquid component (43) from a liquid reservoir to said reaction vessel, wherein it further comprises an automated system for dispensing solid starting material (59) into said reaction vessel.
Abstract:
The invention refers to a method and a kit for inter-species differentiation and identification of a gram-positive bacteria in a sample, comprising analysing the variable region(s) P10 and/or P10.1 of the rnpB-gene of the sample bacteria in a sequencing-by-synthesis analysis, the analysis thereby resulting in a nucleotide pattern. Hereby, bacterial identification of clinically relevant gram-positive bacteria is performed in a quick and accurate way, since typing of the rnpB-gene in combination with sequencing-by-synthesis provides an improved method in this technical field