291 results about "Reference product" patented technology

Embodiments described herein disclose a system and method for providing an improved user experience for purchasing a product within an information feed. An information feed is displayed which includes an information post having a product link or otherwise referencing a product. A selection of the product link or the referenced product is received, and product information for a product associated with the product link or referenced product is retrieved. The product information and a purchase selector are displayed within the information feed, in association with the information post. A selection of the purchase selector is received. User payment information is retrieved and displayed in association with the information post in the information feed. User payment information is transmitted, based on a received confirmation from a user. The purchase is then executed, and a confirmation message may be displayed.

The invention aims at providing a herpes virus type I PCR (polymerase chain reaction) fluorescence quantitative rapid test kit which can detect the specific nucleic acid sequence of pure herpes virus type I in a clinical sample and further achieve the purpose of rapidly judging the existence of the pure herpes virus type I. In order to realize the purpose, the technical scheme of the invention isas follows: the herpes virus type I PCR fluorescence quantitative rapid test kit provided by the invention comprises a DNA (deoxyribonucleic acid) extraction solution, a PCR reaction solution, a DNA polymerase, a positive quality control product, a weak positive quality control product, a negative quality control product and a quantitative reference product, wherein the PCR reaction solution comprises primers and a fluorescent probe, and the primers are divided into an upstream primer and a downstream primer. The herpes virus type I PCR fluorescence quantitative rapid test kit has the beneficial effect of filling in the blank of a fluorescence PCR kit for clinically detecting the pure herpes virus type I (HSV I) in China. Furthermore, a Taqman core technology platform and an arabidopsis thaliana internal control system are utilized for detecting the pure herpes virus type I (HSV I), so that the herpes virus type I PCR fluorescence quantitative rapid test kit has the advantages of highsensitivity, high specificity, stability, timeliness, convenience in operation and the like.

The invention relates to a leptin detection kit. The leptin detection kit comprises a leptin reference product, an antibody-coated microtiter plate, an enzyme-labeled anti-leptin, a washing solution, a color development solution and a stop solution, wherein the leptin reference product is of a recombinant human leptin polypeptide antigen, and the antibody-coated microtiter plate and the enzyme-labeled anti-leptin are of recombinant human leptin polypeptide monoclonal antibodies. The detection principle of the leptin detection kit disclosed by the invention is as follows: the recombinant human leptin polypeptide monoclonal antibody is taken as the antibody-coated microtiter plate, a serum sample to be detected is added, the corresponding enzyme-labeled antibody is further added, a compound of the coating antibody, the serum sample to be detected and the enzyme-labeled antibody is generated, the color development solution is added for color development, then the stop solution is further added for stopping, the residual solution is washed away by the washing solution, the light absorption value of the serum sample to be detected is determined, and the leptin content in the serum sample to be detected can be obtained by comparing with a standard curve.

The invention provides a method for acquiring the reference product yield of a new product on a production line. The method comprises the following steps of: introducing yield screening, overkill rate compensation and a defect density correction coefficient; substituting in a defect density formula to obtain a defect density correction formula; and calculating to acquire the intrinsic defect density of the production line so as to accurately acquire the reference product yield of the new product on the production line.

Kits, primers, and methods are provided herein for detecting relative target source to reference source ratios in a biological sample, by distributing the biological sample into discrete subsamples, wherein the biological sample includes, a plurality of target molecules on a target source; and a plurality of reference molecules on a reference source; providing target primers directed to one or more of the plurality of target molecules and reference primers directed to one or more of the plurality of reference molecules; performing digital amplification with the target primers and the reference primers; and detecting the presence or absence of amplified target products with target probes and detecting the presence or absence of amplified reference products with reference probes, wherein the ratio of amplified target products to amplified reference products is indicative of a relative amount of target source to reference source in a biological sample.

The invention provides a tumor mutation burden standard substance, and a preparation method and application thereof. The tumor mutation burden standard substance is obtained by mixing extracted genomeDNA of 6 pairs of paired cell lines according to a certain proportion. Through whole exon sequencing, a gradient reference substance is sequenced; and a tumor mutation burden value of the corresponding gradient reference substance is calculated through a specific biological information algorithm. For a detection limit reference product, a tumor cell sample is diluted by a normal cell sample in paired samples; and a droplet digital PCR method is used for verifying the dilution proportion for ensuring the mixing to conform to the expectation, so that the complexity of clinic samples and the specificity and sensitivity of an inspection and testing system are simulated to a maximum degree. The product can be used for evaluating the performance of tumor mutation burden detection products, andcan also be used for algorithm optimization or detection flow process optimization of the tumor mutation burden. The tumor mutation burden standard substance is applicable to high-flux sequencing strategies of whole exon and targeted genome or exome subsets.