43results about How to "Convenient qualitative analysis" patented technology

The invention discloses a current evaluation method based on the combined current moment for distribution network closing and switching to supply current. The value circuit calculates the total impedance converted to the 10kV side of the loop closing path, and calculates the equivalent resistance distance from each node load to the voltage reference point in the two divided systems; collects the actual current of each node before closing the loop, and calculates two The load current moment of each node in the system; calculate the combined current moment of the two systems; combine the total impedance of the loop closing path of the grid, the voltage reference value and the combined current moment of the two systems to calculate the closing loop transfer current; judge the closing loop transfer power supply If it is not satisfied, it is necessary to change the operation structure of the power grid and adjust the loop-closing transfer current until the loop-closing transfer current meets the loop-closing conditions. The beneficial effect of the present invention is that it can simplify the method for evaluating the loop-closing transfer current, reduce the calculation amount and improve the efficiency.

The present invention relates to a mass spectrometry instrument, specifically a comprehensive analyzer for organic and inorganic explosives, comprising a thermal analysis sample injector, a sampling cloth, a nickel source, a low-temperature plasma ionization source and an analyzer. There is a carrier gas inlet and a sample gas outlet on the top; the sampling is arranged in the thermal analysis sampler, and the sample on the sampling cloth is injected after thermal analysis; Nickel source, low temperature plasma ionization source and analyzer. The comprehensive analyzer for explosives of the present invention can fully detect organic and inorganic explosives through two ionization modes of low-temperature plasma ionization source and nickel source; for explosives that can be ionized by both ionization sources, the ionization efficiency and Detection sensitivity; adding dopant gas to the carrier gas or the discharge gas of the low-temperature plasma ionization source can change the reactive reagent ions in the ionization source and improve the selectivity and specificity of explosive detection.

The invention relates to a human brain light stimulation control device, comprising: a light parameter control module, a light generation module, a light irradiation probe and a probe position adjustment module connected in sequence; the light parameter control module is connected with the light generation module and is used for setting the light The light generating module generates the light intensity, wavelength and irradiation time of the light signal; the light generating module generates the light signal with a predetermined light intensity and frequency, and transmits the light signal to the light irradiation probe; the irradiation area of ​​the light irradiation probe can be adjusted according to different irradiation modes , which is used to perform fixed-point irradiation on the area corresponding to a specific disease of the brain; the probe position adjustment module is connected with the light irradiation probe to adjust and lock the irradiation position of the light irradiation probe. The present invention increases the ATP in the human brain, enhances the activity of the human brain, and improves the cognitive ability of the human brain by inputting light signals to a specific part of the human brain, and is effective for depression, autism, Alzheimer's disease, Parkinson's disease and other diseases. Epilepsy and other diseases have a certain role in adjuvant therapy.

The invention provides a method for quickly detecting the adsorption performance of an adsorbent, which uses an ultra-high performance liquid chromatography system to detect related substances, adopts an ACQUITY UPLC BEH130C18 chromatographic column, an ultraviolet detector, uses acetonitrile or methanol as the mobile phase A, and uses water For mobile phase B, gradient elution. The invention achieves baseline separation within five minutes and has a good peak shape, which is convenient for further quantitative and qualitative analysis, greatly shortens the detection time, improves the detection efficiency, and can perform quantitative and qualitative analysis on the three items of creatinine at one time, and can be detected at one time The adsorption rate and adsorption capacity of the adsorbent to the three items of creatinine can reflect the adsorption performance of the adsorbent quickly, efficiently and accurately. At the same time, the present invention realizes the adsorption experiment under the condition that the three substances of creatinine exist at the same time, and the results can be More realistically reflect the adsorption performance of the adsorbent on various substances in the blood.

The invention relates to a DBD mass-spectrum ionization source device added with a selective detection reagent. The ionization source device comprises a T-shaped glass tube, a central ground electrode, a radiofrequency high-voltage electrode and a front ground electrode, wherein the rear port of the T-shaped glass tube is used as a discharge gas inlet, the middle port of the T-shaped glass tube is used as a selective detection reagent inlet, and the front port of the T-shaped glass tube is used as an outlet for plasma formed by discharge. During work of the ionization device, two discharge areas are respectively formed between the radiofrequency high-voltage electrode and the central ground electrode as well as between the radiofrequency high-voltage electrode and the front ground electrode, so that more heat can be generated and used for thermal analysis on samples, and the ionization efficiency is improved. When the selective detection reagent gas is input through the middle port of the T-shaped glass tube, the reagent gas can selectively react with a certain substance to form new ions so that the certain substance is distinguished from other substances, thereby improving the detection selectivity, being helpful for qualitative analysis on the samples, avoiding the central ground electrode from corrosion, and prolonging the service life of the electrodes.

The invention discloses a method of enhancing network capacity, comprising five procedures: A. a line between two nodes which have no connections is added, the sum of Betweenness of the whole network and standard deviation of Betweenness of the whole network are counted; B. the procedure A is repeatedly carried out, with every mode of adding a line between two nodes which have no connections, thesum of Betweenness of the whole network and standard deviation of Betweenness of the whole network are respectively counted; C. whether a line-adding mode exists is judged, if exists, then a procedure D is carried out and the procedure is over; if not exists, then a procedure E is carried out; D. a line is added in the network according to the line-adding mode which has the smallest standard deviation of the Betweeness of the whole network and the sum of Betweenness of the whole network; E. a line is added in the network according to a line-adding mode which has huge practical network capacity. The invention has the advantages of enhancing network capacity, avoiding unnecessary network equipment upgrade and reducing cost of enhancing network capacity.

A method of using a flat-panel inkjet printer to coat antigens / antibodies on a microporous plate, placing a clean microporous plate on the workbench of a flat-panel inkjet printer, adding reagents to a clean printer cartridge; obtaining pictures of the microporous plate, and In the computer software, the positions of the pictures corresponding to the microwells where the same reagent is added are set to the same color, and the reagents corresponding to the colors of the pictures are the same as the corresponding reagents in the corresponding ink cartridges; multiple reagents that need to be added in sequence are made into multiple files , print the pictures one by one in the corresponding order. In the present invention, the antigen / antibody is coated on the microporous plate by means of printer inkjet, so that the antigen / antibody can be stably and uniformly solidified, the operation is semi-automatic, and the dosage is accurate and uniform. By changing the picture information to change the coated quantity of the microplate and the concentration of antibody / antigen, it is convenient to set the concentration gradient of coated antigen / antibody to form a control group in ELISA, which is convenient for qualitative analysis and quantitative detection.

The invention relates to a high-efficiency mercury ion detection probe, a preparation method and an application. Specifically, the probe of the present invention is a class of fluorescent probes based on coumarin compounds as fluorophores and thiols as recognition receptors, which can achieve high selectivity to mercury ions, ultrasensitive analysis, and determination of mercury in samples. The concentration of ions; this type of probe can achieve at least one of the following technical effects: high selectivity, strong anti-interference ability, fast response, convenient qualitative analysis, strong anti-interference ability, high sensitivity, and wide detection range.

The invention discloses an identification method for the effective components in a ginkgo leaf preparation. The identification method comprises: (1) preparing a testing product: taking a proper amount of a ginkgo leaf preparation to be detected, adding n-butanol, extracting, filtering, evaporating the filtrate, and adding ethanol to the residue to dissolve so as to be adopted as the testing product solution; (2) preparing a reference substance solution: taking a proper amount of a ginkgo leaf reference preparation, and preparing the reference substance solution according to the step (1); and (3) carrying out thin layer chromatography: respectively sucking 1-10 [mu]lt of the testing product solution and the reference substance solution, respectively spotting on the same silica gel G plate, developing with an ethyl acetate, isopropyl alcohol, methanol and water mixture, taking out the thin plate, carrying out air drying, spraying a 1-5% aluminum chloride ethanol solution, placing in a 365 nm ultraviolet light lamp, viewing the fluorescence, and observing the spot. According to the present invention, with the identification method, the good separation effects of various effective components are good, the spots are clear, the Rf value is moderate, various effective components can be accurately identified, and the qualitative analysis and quality control are easily achieved.