Class / Patent application number | Description | Number of patent applications / Date published |
436017000 | Preparation composition (e.g., lysing or precipitation, etc.) | 12 |
20090215182 | METHOD, COMPOSITION AND DEVICE FOR SAMPLING NATRIURETIC PEPTIDES IN A BIOLOGICAL FLUID - Disclosed is a composition that synergistically prevents proteolysis or modification of peptides in sampled biological fluids using sulfonyl fluoride family protease inhibitors at high concentrations combined with at least one additional protease inhibitor of a different type, preferably a broad spectrum protease inhibitor, and a chelator. A preferred embodiment uses AEBSF at 10 mM, Benzamidine at 20 mM and EDTA as the chelator. The disclosed composition may be combined with other protease inhibitors to further modulate its specificity, for instance to additionally target acidic proteases. Additional protease inhibitors, reducing agents, stabilizers and buffering agents may be combined with the disclosed compositions in devices for sampling or testing biological fluids for levels of peptides of interest, or methods therefore. The disclosed devices, compositions and methods are of particular use in sampling and testing for the level of natriuretic peptides. | 08-27-2009 |
20100291688 | COMPOSITIONS AND METHODS FOR SOLID PHASE EXTRACTION OF LIPIDS - A composition, method and device for the preparation of biological samples for subsequent instrumental analyses, such as GC, GC-MS, LC and LC-MS analysis, using a solid phase extraction (SPE) process is described. Through SPE process alone or an integrated combination of protein precipitation, filtration, and SPE using a hydrophobic zirconia-coated chromatographic media, interfering compounds, such as proteins, glycerides and phosphate-containing compounds, are eliminated from the biological, food, environmental and biotechnology samples, affording an enhanced analyte response during the instrumental analysis. | 11-18-2010 |
20110014711 | MIX FOR IDENTIFICATION TEST IN THE PROCESS OF QUALITY CONTROL OF THE MEDICINE 'GLYCINE TABLETS FOR SUBLINGUAL APPLYING 0,1G' METHODS OF ITS PREPARATION AND IDENTITY EVALUATION IN THE PROCESS OF QUALITY CONTROL OF THE AFOREMENTIONED MEDICINE - The invention relates to the chemical-pharmaceutical industry and specifically to mix for identification test in the process of quality control of the medicine ‘Glycine tablets for sublingual applying 0.1 g.’ its preparation method and method of identity evaluation in the process of quality control of the mentioned medicine. There is prepared mix containing 50% ethaπτl and porphyrized tablets in a ratio 100:0.5. The method involves dissolution of 1.25 g of porphyrized tablets in 250 ml of 50% ethanol. Process of dissolution takes 20 minutes and is carried out at a temperature of 400 C in the apparatus for dissolving determination at a paddle rotation speed of 200 rpm. After mix is dissolved it is allowed for 10 minutes RT. Method of identification test includes hydro-alcohol mix preparation using 50% ethanol as described before. Then there are selected 4 ml of the mix for light transmission spectrophotometer analysis at a wave length of 700±2 in a cuvet with layer thickness of 10 mm relative to 50% ethanol. Water mix is prepared by dissolving of 2.5 g of porphyrized tablets in 250 ml, of purified water for 20 minutes at a temperature of 370 C. Experiments with water mix and hydro-alcohol mix are similar. Therefore there is determined difference between light transmission coefficients of water mix and hydro-alcohol mix and the obtained value is compared to the limit of 30 to 50%. | 01-20-2011 |
20110165686 | METHOD FOR PRODUCING STANDARD SAMPLE FOR USE IN QUANTITATIVE DETERMINATION OF RED PHOSPHORUS IN RESIN - Provided are a method for preparing a standard sample in which a uniform dispersion of a predetermined concentration of red phosphorus is guaranteed even in a very small amount, and an analytical method for quantitatively determining red phosphorus contained in a resin by pyrolysis-GC/MS, in which the standard sample is used. The method for producing a standard sample for quantitatively determining red phosphorus contained in a resin includes the steps of preparing a red-phosphorus-containing compound by weighing a predetermined amount of red phosphorus and uniformly mixing the red phosphorus in a resin; decreasing the number of particles having a maximum diameter of 5 μM or more to 1/20 or less of the number of particles having a maximum diameter of 1 μm or more and less than 5 μm by pulverizing the red-phosphorus-containing compound; and obtaining a standard sample by weighing about 0.05 to 10 mg, preferably about 0.1 to 0.5 mg of the pulverized red-phosphorus-containing compound. The analytical method is a method for quantitatively determining red phosphorus contained in a resin by pyrolysis-GC/MS, in which the standard sample is used. | 07-07-2011 |
20110177601 | METHOD FOR CONCENTRATION OF LOW-MOLECULAR-WEIGHT PROTEINS AND PEPTIDES IN BODY FLUID SAMPLE - A method for extracting low-molecular-weight proteins/peptides contained in a body fluid sample, particularly, in serum or plasma. The method includes the steps of (a) to (e): (a) adding reagent 1 containing urea and thiourea and reagent 2 containing a reducing agent to the body fluid sample, mixing them, subsequently dropping the mixture into reagent 3 containing 90% or more of an organic solvent, and mixing them; (b) stirring at a low temperature the mixed solution obtained in step (a); (c) centrifuging at a low temperature the stirred solution obtained in step (b) and removing the supernatant; (d) adding reagent 4 containing an organic solvent and an acid to the precipitate obtained in step (c) and mixing them; (e) stirring at a low temperature the mixed solution obtained in step (d); and (f) centrifuging at a low temperature the stirred solution obtained in step (e) and recovering the supernatant. | 07-21-2011 |
20110177602 | Composite Structure - A composite structure, for marking biomolecules in a biological, biochemical or medicinal system, comprises: at least one nano particle and at least one dendritic macromolecule, which has an inner region with branched, especially perfectly branched to highly branched, structures and a periphery, which comprises surface groups of the dendritic macromolecule, wherein a plurality, especially more than 50%, of the surface groups have in the periphery of the dendritic macromolecule, in each case, at least one functional group of first type, wherein the functional group of first type comprises at least one monosaccharide-, oligosaccharide- and/or polysaccharide unit, and wherein the dendritic macromolecule stabilizes the nano particle. | 07-21-2011 |
20110183421 | COMPOSITION AND METHOD FOR CONVERTING A NON-PATHOGENIC PRION PROTEIN INTO A PATHOGENIC CONFORMATION AND USES THEREOF - Described herein is a composition for converting a non-pathogenic prion protein (“PrP | 07-28-2011 |
20110207228 | ISOBARIC TAGS FOR ANALYTE DETECTION AND QUANTIFICATION - Isobaric reagents for labeling analytes are provided. The isobaric reagents have facile design and synthesis that allows for differential labeling of an unlimited number of analyte samples. | 08-25-2011 |
20140315315 | PROTEIN DETECTION - The present invention relates to reagents for separating proteins from detergent, reagents for detecting proteins in the presence of a detergent, and methods of using the same. The separating reagents contain a cyclic oligomer such as cyclodextrin and a cellulose derivative such as 2-hydroxyethyl cellulose. When used in combination with standard protein-complexing dyes, the reagents allow detection of proteins in electrophoresis gels at nanogram levels. | 10-23-2014 |
20160018305 | Quick extraction kit adapted to a procedure of detecting pesticide residues in agricultural products and a method of obtaining a primary test liquid from an agricultural sample by the quick extraction kit - The present invention provides a quick extraction kit adapted to a procedure of detecting pesticide residues in agricultural products and a method of obtaining a primary test liquid from an agricultural sample by the quick extraction kit. The quick extraction kit comprises a pipe, a first powder mixture layer and a second powder mixture layer. The method of taking primary test liquid is performed as follows. First, obtaining fragments of the agricultural sample. Second, adding an extraction solvent into the fragments of the agricultural sample to obtain a sample solution. Third, adding the sample solution into the pipe. Finally, driving the sample solution to export from the pipe to become the primary test liquid. The quick extraction kit and the method solve the problem of being unable to quickly obtain the result of detecting pesticide residues. | 01-21-2016 |
20160025750 | RELEASE REAGENT FOR VITAMIN D COMPOUNDS - A reagent composition for releasing vitamin D compounds bound to vitamin D-binding protein and an in vitro method for the detection of a vitamin D compound in which the vitamin D compound is released from vitamin D-binding protein by the use of this reagent composition as well as the reagent mixture obtained in this manner. Also disclosed is the use of the reagent compositions to release vitamin D compounds as well as a kit for detecting a vitamin D compound. | 01-28-2016 |
20160047825 | METHOD AND REAGENT FOR DETERMINING VITAMIN D METABOLITES - The present invention relates to a method for releasing bound vitamin D by bringing a sample containing vitamin D into contact with a release reagent which contains at least one hydrotropic substance and at least one transition metal salt. The released vitamin D can subsequently be determined quantitatively. The present invention relates further to a reagent for releasing and optionally determining vitamin D, containing at least one hydrotropic substance and at least one transition metal salt, as well as to the use of such a release reagent for releasing and optionally determining vitamin D. | 02-18-2016 |