261results about "Chemical methods analysis" patented technology

Sorting biogenic material from a stream of heterogeneous materials is disclosed, including: detecting biogenic material within an input stream of heterogeneous material; sorting the biogenic material based at least in part on a desired biochar formulation; and tracking a composition of a sorted mixture of biogenic material.

The present invention provides methods of screening for compounds that interfere with the interaction between ERG. ETV1, ETV4 or ETV5 and mSWI / SNF (BAF) chromatin remodeling complex proteins. Included are methods of screening for compounds that interfere with the interaction between ERG, ETV1, ETV4 or ETV5 and BAF155. Methods of treating prostate cancer with compounds that interfere with the interaction between ERG, ETV1, ETV4 or ETV5 and mSWI / SNF (BAF) chromatin remodeling complex proteins are also provided.

The invention discloses a lithium precipitation rapid quantitative detection method and system, a storage medium and a program product, and relates to the field of equipment specially suitable for material research and analys.The method comprises the steps that after ethyl alcohol of a preset volume is dropwise added to the surface of a to-be-detected pole piece, real-time concentration data of hydrogen is collected; determining a time-varying curve of the hydrogen concentration; determining the reaction activity of metal lithium on the surface of the to-be-detected pole piece based on the curve; compensating and correcting the real-time concentration data of the hydrogen according to the reaction activity; and converting the corrected hydrogen concentration data into a lithium quality detection result. The hydrogen generation container is the closed reaction bottle, the needle connected with the hydrogen sensor is inserted into the reaction bottle, the hydrogen concentration can be rapidly detected, the hydrogen concentration in different reaction bottles can be rapidly detected by inserting different reaction bottles, and the detection process is in a closed environment. The method is used for improving the precision of quantitative detection of precipitated lithium, so that the frequency of electrode replacement and calibration is reduced, and the continuity and reliability of detection data in the production process are improved.

The invention provides a seawater fish freshness detection method and device based on machine vision and FPS, and relates to the technical field of prefabricated aquatic product nondestructive detection.The device comprises a mounting box, an automatic lifting clamp device is arranged at the inner bottom of the mounting box, and a fixed-distance pressing device is arranged at the position, corresponding to the automatic lifting clamp device, of the top of the mounting box; a top image shooting device is arranged on the fixed-distance pressing device, an infrared sensing positioning device corresponding to the fixed-distance pressing device is arranged in the mounting box body, a side industrial camera is arranged on one side of the interior of the mounting box body through a first support, a plurality of lighting devices are arranged on the upper portion of the side wall of the mounting box body, and a control unit is arranged at the bottom of the mounting box body; the top image shooting device, the infrared sensing positioning device, the side industrial camera, the automatic lifting clamp device, the lighting device and the fixed-distance pressing device are all electrically connected with the control unit. According to the invention, high-efficiency and automatic seawater fish freshness detection can be realized.

The invention relates to a polygonatum cyrtonema fresh rhizome processing quality grade evaluation method, which is characterized in that a production enterprise only needs to detect seven content values of polysaccharides, total saponins, total phenols, total flavonoids, reducing sugar, crude protein and crude fat of processed polygonatum cyrtonema rhizomes by themselves or entrusting a third-party mechanism, and then can calculate and evaluate by themselves; the method is simple and easy to learn, convenient to operate, high in precision, high in efficiency and low in cost, can be widely applied to quality self-evaluation of edible polygonatum cyrtonema production enterprises and separation of superior and inferior products, is beneficial to grading sales of edible polygonatum cyrtonema products, improves the added value of the products, and meets the demand of consumers for purchase according to needs.

The invention discloses an on-line monitoring method and device for gas-liquid volume mass transfer coefficient in a high-viscosity reactor, and the monitoring method comprises the following steps: vacuumizing to exhaust CO2 in a melt in a closed reactor, vacuumizing to exhaust inert gas in the closed reactor, filling CO2 into the closed reactor until the pressure is less than 20 kPa, stirring the melt in the reactor to absorb CO2, and carrying out vacuum pumping to exhaust inert gas in the closed reactor; the gas-phase pressure in the reactor is collected in real time through precise pressure equipment, and quantitative analysis is carried out on a change curve of the gas-phase pressure along with time, so that the gas-liquid volume mass transfer coefficient (kLa) CO2 of CO2 in the reactor is obtained. According to the method, the pressure in the reactor in the process that CO2 is absorbed by the high-viscosity melt in the closed system is collected through precise pressure equipment, the problem that melt sampling is difficult in a traditional high-viscosity reactor kLa measuring method can be solved, the reactor does not need to be excessively modified, and therefore the calculation result can guide reaction process optimization and production practice.

The utility model relates to the technical field of environmental air pollutant concentration monitoring, and provides a peroxy radical chemical amplification device which comprises a sampling-amplification channel, a first acquisition control circuit module is arranged in the sampling-amplification channel and used for controlling an electric control program of a device system, and a second acquisition control circuit module is arranged in the sampling-amplification channel. An HO photolysis module is arranged in the sampling-amplification channel, a second acquisition control circuit module is arranged in the sampling-amplification channel and used for controlling an electric control program of the device system, and a gas path module is arranged in the sampling-amplification channel and used for controlling the gas flow direction of the device system; according to the utility model, the sampling-amplifying channel is arranged, so that the device is simple in structure, simple to operate, low in manufacturing cost and high in time resolution; the inhibition effect of the environment humidity on the amplification reaction is solved to a certain extent, and the actual effects of accurate measurement, simple operation and stable operation are obtained.

The invention discloses a saline-alkali soil crop-soil system nutrient dynamic matching regulation and control method, relates to the technical field of agricultural planting, and aims to solve the technical problems of saline-alkali soil nutrient imbalance, limited crop nutrient absorption and low efficiency of a traditional regulation and control mode, and the method comprises the following steps: S1, preparation before sowing; performing layered deep scarification treatment on a plough layer of the saline-alkali soil, synchronously applying a salt control improvement material to a deep plough layer to improve a saline-alkali environment, and arranging a layered under-film drip irrigation system matched with crop root zone distribution; s2, monitoring in a whole growth period; in the whole growth period of crops, plough layer soil samples are collected in a layered mode, soil salinity and nutrient indexes are measured, meanwhile, the growth state of the crops is monitored, and the incidence relation between the soil indexes and crop growth is established. The method solves the problem that nutrient supply is disjointed with the requirements of the root zone and the growth period of the oil sunflower in the prior art, creates adaptive saline-alkali environment and nutrient conditions for the whole growth period of the oil sunflower, and guarantees normal growth and development of the oil sunflower.

The invention relates to the technical field of agricultural disease prevention and control, and discloses a rice damping-off prevention and control system based on soil ecology regulation and control, comprising the following modules: a soil ecology monitoring module used for acquiring physical properties, chemical properties and microflora related data of paddy field soil in real time; and the data transmission and storage module is connected with the soil ecology monitoring module and is used for transmitting the data acquired by the soil ecology monitoring module to a storage end and storing the data. The rice damping-off prevention and control system based on soil ecology regulation and control can comprehensively and accurately obtain soil ecology data in real time, guarantee stable, safe transmission and proper storage of the data, accurately judge the rice damping-off occurrence risk and perform early warning in time, and effectively prevent and control rice damping-off. The problem that the paddy field soil ecology cannot be accurately monitored, analyzed, regulated and controlled in multiple dimensions is solved.

The invention is directed to a conjugate having the general formula (I)Xn—P—YmBo  (I)with X is an detection moiety,P is a spacer unit,Y an antigen recognizing moiety,B an oligonucleotide comprising 2 to 100 nucleotide residuesand n, m, o are independent integers between 1 and 100wherein P and B are covalently bound to Y and X is covalently bound to P and wherein X is erasable.Further, the invention is directed to a library of such conjugates and a method of detecting target cells utilizing the conjugates or the library of conjugates.

An organic matter analysis system capable of determining the organic matter concentration in water to be treated and analyzing the characteristics of the organic matter, and a water treatment system for controlling water treatment equipment based on the analysis results are provided. [Solution] The organic matter analysis system includes a measurement device that adds an oxidizing agent to a sample, decomposes the organic matter by chemical oxidation to generate carbon dioxide, and detects the carbon dioxide, and an analysis device 1 that obtains the detection result of the measurement device and calculates the total organic carbon concentration of the sample using the detection result. The analysis device 1 obtains information on the characteristics of the organic matter based on the difference in total organic carbon concentration calculated when an oxidizing agent is added or when different types of oxidizing agents are added.

The present invention makes it possible, when using a calibration curve of an IC analysis device or the like to analyze the content of sulfur and / or halogen contained in a sample, to perform the analysis with good precision without the use of a reagent such as hydrazine or hydrogen peroxide.　In the present invention, when preparing an absorption liquid to introduce into an analysis device, an absorption tube comprising an electrode for electrolysis is used, electrolysis is performed on an absorption liquid accommodated in the absorption tube, thereby performing oxidation or reduction of a target component in the absorption liquid, and the absorption liquid is then introduced into the analysis device.　

Method and apparatus to enable detection, count, and recordation of properties of particles of ultrafine particle sizes (<0.1 micron) as well as particle of larger sizes with the use of a condensation nuclei counter configured to enable multiple stages of volume expansion with the use of an array of fluidly connectable chambers.

The invention provides a chemical computer having a matrix, an input device and an analytical device. The matrix is a plurality of interconnected reaction spaces holding a reaction mixture; the input device is provided to independently address each of a plurality of reaction spaces within the matrix; and the analytical device has a sensor to analyse a reaction characteristic of a reaction mixture in one or more reaction spaces. Also provides are methods for using the chemical computer, and the use of the chemical computer as a logic gate.

The invention discloses a sinter quality inspection method. Physical and mechanical performance inspection is mainly used for evaluating particle size distribution and wear resistance strength of sinter through size fraction screening and drum strength testing. A vibrating screen is adopted for size fraction screening, the weight of each size fraction is accurately weighed, the screening index is determined, samples of 40-25 mm, 25-16 mm and 16-10 mm in size fraction are prepared according to the preset proportion, the weight of each size fraction is accurately controlled through a static weighing method, the weight deviation of the previous size fraction is compensated in an accumulated mode, the matching accuracy is ensured, personal errors are effectively reduced, and the screening efficiency is improved. The reliability of a test result is improved; the chemical component inspection comprises the step of determining the contents of various elements in the sintered ore through cleaning, crushing, division, sample grinding and chemical component analysis. The problem that blast furnace ironmaking is affected by large deviation of inspection results due to different operation methods of personnel can be solved.

Described herein are methods, assays and techniques for detecting and / or measuring anti-drug antibodies that bind to a protein, polypeptide or other compound or molecule that comprises at least one immunoglobulin variable domain with an exposed C-terminal region.

One embodiment according to this invention provides a method for selecting an additive agent for suppressing a nitrosation reaction. Alternatively, one embodiment of the present invention provides a formulation that suppresses the generation of nitroso compounds, including an additive agent selected by a method for selecting an additive agent for suppressing a nitrosation reaction. In one embodiment, a method for selecting an additive agent for suppressing a nitrosation reaction includes adding an amine source and an NOx source to an additive agent to generate nitroso compounds, quantifying an amount of the generated nitroso compounds, and evaluating a suppressing effect of the nitrosation reaction of the additive agent based on the amount of the generated nitroso compounds.

A calibration curve solution production system that produces and supplies a calibration curve solution for creating a calibration curve to a measurement device that uses the calibration curve to measure the total organic carbon concentration of a liquid to be analyzed. The system includes an analyte line that conducts the liquid to be analyzed to a TOC analyzer, a standard solution line that conducts a standard solution to the analyte line, a mixing unit installed on the analyte line that mixes the diluent and the standard solution to dilute the standard solution and supplies to the TOC analyzer the mixture of the diluent and the standard solution mixed in mixing unit as the calibration curve solution.

The present invention relates to an oven (1, 1') for an analytical system, in particular for a titration system, in particular for a Karl Fischer titration system. The oven (1, 1') comprises a housing, a blocking system (2a, 2a', 2b, 2b', 2c, 2c') and an insert (3, 3') for a sample container. The blocking system (2a, 2a', 2b, 2b', 2c, 2c') is arranged at least partially around the insert (3, 3'). At least one heating element is arranged between the blocking system (2a, 2a', 2b, 2b', 2c, 2c') and the insert (3, 3') and at least partially surrounds the insert (3, 3'). The present invention also relates to a titration system and a titration method having such an oven (1, 1').

Provided are an anti-CLDN18.2 antibody or antigen-binding fragment thereof, a nucleic acid molecule encoding the same, an immunoconjugate, bispecific molecule, chimeric antigen receptor and pharmaceutical composition comprising the same. The antibody or antigen-binding fragment thereof is used for preventing and / or treating a tumor.

The present invention provides, as a method for evaluating a denaturation state of an antibody with an easy operation, a method for evaluating a denaturation state of an antibody, comprising: a step for bringing a compound represented by general formula (1) or a salt or solvate thereof into contact with a test sample including an antibody; and a step for measuring a maximum emission wavelength based on the contact. R1 and R2 in the formula are defined in the specification.

The utility model discloses an azotometer for protein detection, and relates to the technical field of azotometers for protein detection. A connecting piece is fixedly connected to the side face of the digestion pipe, a telescopic rod is slidably connected to the interior of the fixing groove, a check block is fixedly connected to the bottom of a sliding rod, and a sliding block is connected to the outer portion of the sliding rod in a sleeving mode, and when the digestion pipe is clamped into the mounting groove, the check blocks fixedly connected to the two ends of the mounting groove are firstly clamped into the connecting groove; the telescopic rod shrinks towards the interior of the connecting piece due to the extrusion effect of the check block, when the top of the check block enters the interior of the connecting groove, the telescopic rod is clamped to the top of the check block under the reset effect of the telescopic spring, the telescopic rod continues to slide upwards outside the sliding block, and a protruding block at the bottom of the sliding block is driven downwards to be embedded into a clamping groove; at the moment, the telescopic rod can slide outside the sliding block and the stop block, and the digestion pipe is separated from the interior of the mounting groove, so that the digestion pipe is more convenient to disassemble and assemble.

This document provides methods and materials involved in treating cancer. For example, chimeric antigen receptor T cells having reduced levels of GM-CSF are provided. Also provided as methods for making and using chimeric antigen receptor T cells having reduced levels of GM-CSF.

The utility model discloses a device for evaluating the performance and loss of a desulfurizing agent based on a complex iron method, which relates to the technical field of complex iron desulfurization and specifically comprises a gas inlet module, a desulfurization module, a desulfurizing agent regeneration module, a sulfur precipitation module and a desulfurizing agent self-circulation module which are connected in sequence, the central control module is in communication connection with the monitoring module; the tail gas treatment module is connected with the desulfurization module; the desulfurization module adopts a desulfurization tower; the desulfurizing tower comprises a gas inlet, a gas outlet, a desulfurizing agent inlet and a desulfurizing agent outlet; the gas inlet module is connected with a gas inlet of the desulfurization module, a desulfurizer outlet of the desulfurization module is connected with the desulfurizer regeneration module, and a desulfurizer inlet of the desulfurization module is connected with the desulfurizer self-circulation module. According to the utility model, the data collected by the monitoring module is transmitted to the central control module, and the central control module receives and processes the data to obtain the performance index of the desulfurizing agent and the loss index of the desulfurizing agent, so that the performance of the desulfurizing agent and the loss of the desulfurizing agent are accurately evaluated in real time.

The present disclosure provides improved methods for measuring hemoglobin A (HbA) formation. More particularly, the disclosure provides methods for assessing potency of a viral vector encoding β-globin.

Provided is a method for analyzing fumed silica, which makes it possible to improve the accuracy of analysis of fumed silica, particularly analysis by a combustion method, to a level that has not been achieved before. [Solution] A sample of fumed silica is compacted using a fumed silica compaction jig that includes, for example, a cylindrical cylinder 1, a base 2 forming the bottom surface of the cylinder, and a cylindrical piston rod 3 that can be fitted into the cavity of the cylinder, preferably to a compacted body with a bulk density of 150 g / L or more, and the obtained compacted body is then subjected to analysis.

To provide a coloring agent capable of detecting cannabinoids, and a detection method and a detection kit for cannabinoids.SOLUTION: A coloring agent comprises a compound represented by formula (1) or formula (2). (In the formulas, R1 is a nitro group, cyano group, hydroxy group, alkoxy group, carboxy group, sulfo group, alkyl group, halogenated alkyl group, H, or the like; R2 and R4 are each a nitro group, cyano group, hydroxy group, alkoxy group, carboxy group, sulfo group, alkyl group, H, or the like; R3 and R5 are each an alkoxy group, alkyl group, alkenyl group, substituted or unsubstituted phenyl group, hydroxy group, or H; R6 and R7 are each an alkoxy group, alkyl group, or phenyl group; and X- and Y- are counter anions.)SELECTED DRAWING: None

This invention discloses a simulation device for hydrothermal reactions under vacuum chamber dehydration accidents, belonging to the field of vacuum chamber accident simulation technology. The device includes a quartz tube with its opening facing upwards, an induction heating coil wound around its exterior, and a detachably sealed end of the quartz tube via a flange assembly. A water injection pipe extending from the lower end of the flange assembly to above a metal sample is connected to a storage tank. The flange assembly also has an outlet pipe communicating with the inner cavity of the quartz tube, which is connected to a mass spectrometer analysis unit via a liquid nitrogen cold trap. The middle section of the outlet pipe is connected to a vacuum pumping unit via a vacuum pumping pipe. A monitoring unit is located on one side of the quartz tube. This invention integrates vacuum acquisition, induction heating, controllable coolant injection, in-situ monitoring, and online analysis of gaseous products, achieving comprehensive simulation of the high-temperature metal-coolant hydrothermal reaction process under vacuum chamber dehydration accidents. It is suitable for preliminary research on vacuum chamber dehydration accidents in fusion devices, high-temperature high-vacuum furnaces, and other similar applications.