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196 results about "Trace element" patented technology

A trace element is a chemical element whose concentration (or other measure of amount) is very low (a "trace amount"). The exact definition depends on the field of science...

Method for carrying out mineral and element relation analysis on gold-bearing mineral based on image matching and data fusion and application thereof

The invention relates to the crossing field of mineralogy and geochemistry, in particular to a mineral and element relation analysis method for gold-bearing minerals based on image matching and data fusion and application of the mineral and element relation analysis method. Comprising the steps of ore sample processing, gold-bearing mineral image calibration through AMICS, trace element scanning through fixed-point EPMA and EDS, image-level matching and spatial data fusion and gold-bearing mineral-element relation analysis. According to the method, the AMICS mineral map and the EPMA element information are fused, relation analysis of trace elements in the gold ore and visual reconstruction of a mineral-element corresponding mechanism can be achieved, and effective data and image models are provided for microcosmic metallogenic information requirements in digital mine construction.
Owner:INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI +1

Culture medium for producing tylosin by utilizing streptomyces fradiae

The invention provides a culture medium for tylosin fermentation. Specifically, the culture medium comprises a carbon source, a nitrogen source, inorganic salt and trace elements. The applicant optimizes the types and contents of a carbon source, a nitrogen source, inorganic salts and trace elements, so that the culture medium for improving the yield of tylosin is obtained. The culture medium disclosed by the invention is low in cost, and the yield of tylosin can be remarkably increased. Compared with the prior art, the method has the advantage that the yield of tylosin is increased by 27.95%.
Owner:SHANGHAI INST OF PHARMA IND CO LTD +1

Spectrometer for detecting trace element in agricultural product and use thereof

A spectrometer for detecting a trace element in an agricultural product and use thereof is provided. The spectrometer includes: a light source device configured to generate light required by spectroscopic detection; a convergence device configured to converge the light generated by the light source device; a chopping device configured to modulate a frequency of light converged by a convergence device; a filter device configured to shield light of a wavelength other than a preset wavelength; a detection device configured to receive light passing through a to-be-detected agricultural product and the filter device, and convert an optical signal into an electrical signal; and a processing device configured to generate spectroscopic analysis data according to the electrical signal outputted by the detection device and output a substance content analysis result according to the spectroscopic analysis data, where the preset wavelength of the filter device ranges from 400 nm to 5,000 nm.
Owner:ZHEJIANG UNIV +1

Rare metal mineralization potential comprehensive evaluation method based on rock geochemistry

The invention discloses a rare metal mineralization potential comprehensive evaluation method based on rock geochemistry, and aims to solve the problems of single evaluation index and disjunction between field observation and indoor analysis in the prior art. The method comprises the following steps: obtaining geological data of an analysis area, and screening a target area based on a favorable structure background and an exposed feature criterion; identifying mineralogical and lithofacies markers and collecting sampling data; the method comprises the following steps: acquiring rock geochemical data of a sample sampled by a previous person, including multi-dimensional data including major elements, trace elements, isotope composition and the like, and calculating a quantitative evaluation index according to the data; and finally, establishing a comprehensive evaluation model by adopting a weighted scoring method to realize mineralization potential grade division and target region accurate delineation in a three-dimensional space. According to the method, organic combination of macroscopic geologic features and microcosmic geochemical data is realized, and a complete technical system from field observation to indoor analysis to engineering decision is formed.
Owner:CHANGAN UNIV

Method for measuring content of trace elements

The invention discloses a trace element content measuring method, and relates to the technical field of metallurgical analysis, the method comprises the following steps: obtaining a plurality of standard reference substances, the matrix components of the plurality of standard reference substances are the same, and the standard contents of the same trace element to be measured in the plurality of standard reference substances are in stepped distribution; under a preset test condition, based on the standard relative sensitivity factor, respectively testing the plurality of standard reference substances through glow discharge mass spectrometry to generate the test content of the to-be-tested trace element; based on the test content and the standard content, determining a calibration proportionality coefficient corresponding to the to-be-tested trace element; based on the calibration proportionality coefficient, calibrating the standard relative sensitivity factor to generate a calibration relative sensitivity factor; and testing the to-be-tested sample through glow discharge mass spectrometry based on the calibration relative sensitivity factor under a preset test condition, and determining the test content of the to-be-tested trace element in the to-be-tested sample.
Owner:BEIJING BEIYE FUNCTIONAL MATERIALS CORP

Trace element detection device

The invention belongs to the technical field of trace element detection, and particularly relates to a trace element detection device which comprises a storage box, an access hole is formed in the front end of the storage box, a detachable cover plate is clamped in the access hole, a moving cavity opening is formed in the upper side of the storage box, and a protection plate is clamped in the moving cavity opening. A lifting mechanism is fixed to the rear end of the interior of the storage box, a vertical plate is fixed to the front end of the lifting mechanism, and the upper side of the vertical plate is fixedly connected with the lower side of a protection plate. The trace element detector is clamped and fixed to the interior of the storage box, and when the trace element detector needs to be used, the trace element detector can be moved to the exterior of the storage box; and when not in use, the device can be moved into the storage box to be effectively protected, accidental collision and damage are avoided, and the device is small in size and can be carried at will by directly carrying the storage box.
Owner:BEIJING HESHI LONGYUAN TECHNOLOGY DEVELOPMENT CO LTD

New-type barite deposit metallogenic mode construction method based on co-sedimentary fault

The invention discloses a new-type barite deposit mineralization mode construction method based on a same sedimentary fault. The method belongs to the field of geological exploration and mineral resource prediction, and comprises the following steps: analyzing the earth crust cracking activity history of an earthquake-Hangjian broken basin, and recovering a basin'checkerboard 'structure prototype; by means of field geological survey and research, drilling engineering, geophysics, remote sensing geological big data and the like, north-east-east-direction and north-west-direction co-sedimentary fault networks are identified and modeled, and a deep metallogenic fluid rising and jet flow channel is determined; the metallogenic process is concluded into a hydrothermal jet flow stage and an underwater gravity flow deposition stage, deep fluid is revealed to rise, jet flow and precipitate along a fault, and an ore-rich zone of a composite seabed fan body group is formed; and a geochemical prospecting prediction model combining trace element and sulfur isotope characteristics is established. The method systematically clarifies a coupling mechanism of ore control of the same sedimentary fault, ore-forming fluid migration and gravity flow deposition, and provides a theoretical basis and a technical means for prospecting prediction of the barite deposit in the Hendan-Hangjian fault basin.
Owner:GUIZHOU UNIV +3

Water purifier capable of adjusting mineral substances and trace elements according to regions

The utility model discloses a water purifier capable of adjusting mineral substances and trace elements according to regions, which comprises a machine body, an outer water inlet, an outer water outlet and an outer wastewater port are arranged on the machine body, and a second filter element used for filtering microorganisms, bacteria and viruses in water is arranged in the machine body and sequentially connected with the second filter element. The water inlet end of the second filter element is connected with an outer water inlet, the filtered water outlet end of the third filter element is connected with an outer water outlet, and the wastewater outlet end of the third filter element is connected with an outer wastewater opening. A flow regulating valve for regulating water flow is connected between the output end of the second filter element and the filtered water outlet end of the third filter element so as to regulate mineral substances and trace elements in the filtered water, and the mineral substances and the trace elements in the filtered water can be regulated and reserved.
Owner:GUANGDONG JIUXIN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Nano composite trace element fertilizer, preparation method and application system

The invention provides a nano-composite trace element fertilizer, a preparation method and an application system, the nano-composite trace element fertilizer is a composite trace element fertilizer nano-suspension, and trace element fertilizer composite nanoparticles are suspended in a composite trace element fertilizer clear liquid to form the composite trace element fertilizer nano-suspension; the nanoscale microelement fertilizer has a huge specific surface area, and can greatly improve the absorption and utilization efficiency of microelements; the source of the trace element fertilizer is expanded, not only can trace element salt be used, but also oxides (in a stone state) and simple substance metals (hard blocks) of specific trace elements can be converted into the trace element fertilizer; the slow release time is set according to different application scenes, so that the use convenience is improved; the nanoscale microelement fertilizer can be matched with an organic fertilizer, a compound fertilizer, a water flush fertilizer, an insecticide, a pesticide and the like for use, and can also be applied to a water and fertilizer integrated system; the nanoscale trace element fertilizer has water insolubility, reduces the influence of environmental factors such as raining and the like, and has higher utilization efficiency.
Owner:YUNNAN TANWANG IND GROUP CO LTD

Method for judging existence form of associated gallium in sandstone type uranium deposit

The invention belongs to the field of basic research of sandstone type uranium ore associated resource evaluation, and particularly relates to a method for judging the existence form of associated gallium in a sandstone type uranium deposit, which comprises the following steps of: measuring the contents of major elements and trace elements of a plurality of uranium ore samples, and judging whether gallium meets the lowest grade requirement of associated resources of the uranium deposit; for uranium ore samples exceeding the lowest grade requirement of gallium associated resources, correlation analysis of gallium elements, main elements and trace elements is carried out, and possible key mineral types closely related to gallium are preliminarily speculated; carrying out slice analysis, and circling an approximate range of speculated possible key mineral types; carrying out scanning electron microscope and energy spectrum analysis combined observation, and determining the existence form of gallium in the uranium deposit; the position exceeding the associated grade gallium is determined through laser in-situ analysis; the gallium-related mineral type is directly determined through electron probe analysis; and comprehensively judging the existence form of gallium in the uranium deposit. According to the method, the existence form of associated gallium in the sandstone type uranium deposit can be accurately and quickly judged.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

Microelement composite additive for improving reproductive performance of pets

PendingCN122004358AFood processingAnimal feeding stuffBiotechnologyVitamin E Acetate
The invention belongs to the technical field of pet nutrition, and discloses a trace element composite additive for improving the reproductive performance of pets, which comprises the following raw materials: zinc sulfate, sodium selenite, copper sulfate, manganese sulfate, vitamin E acetate, L-lysine hydrochloride, taurine, methionine, selenium yeast and zeolite powder. The zeolite powder is subjected to a specific acid treatment activation process, so that the adsorbability and the stability are improved. The invention also discloses a preparation method of the additive. A three-step mixing process is adopted to ensure the uniformity of the product. The additive is suitable for being added into feed in the breeding period of canine or feline pets, the adding amount of the additive is 0.1-0.5% of the total weight of the feed, and the feeding time is 1 month before breeding and 1 month after breeding. Through scientific proportioning of organic trace elements and inorganic trace elements, in combination with specific amino acids and vitamins, the components have a synergistic effect, so that the pregnancy rate, the litter size and the survival rate of newborn animals of pets are remarkably increased, and meanwhile, the pet feed has good storage stability and use safety.
Owner:BEIJING ZHONGNONG JINTENG BIO-PHARM CO LTD

A trace element detection system and method

The application discloses a trace element detection system and method, and belongs to the technical field of spectral quantitative detection. The system comprises a laser, a sample stage and a spectral signal acquisition system. The laser ablates a sample to generate plasma after passing through a half-wave plate, a Glan prism, a dichroic mirror and a lens group. The acquisition system comprises a wide / narrow band spectral signal collection system and a trigger system: the wide band system comprises an axial and first lateral light path, couples full spectrum signals to a spectrometer, and is used for matrix identification; the narrow band system comprises a second lateral collection lens, a light splitting element and a UV / visible double channel, each channel is sequentially provided with a neutral density filter, an ultra-narrow band filter and a plano-convex lens, and is connected to a photomultiplier tube to an oscilloscope, and high-sensitivity detection of specific element characteristic spectral lines is realized; and the trigger system is used for triggering the spectrometer to acquire. The wide band and narrow band collaborative architecture is adopted, and both material matrix identification and high-precision quantitative detection of trace elements are considered.
Owner:SHANDONG UNIV

Production device of organic compound trace elements

The utility model relates to a production device of organic compound trace elements, which comprises a storage hopper and a mixing tank, the bottom of the storage hopper is provided with a blanking pipe, the storage hopper and the blanking pipe are internally provided with a partition plate, the bottom of the blanking pipe is horizontally provided with a spiral conveyor, the outer surface of the spiral conveyor is connected with a discharge pipe, and the discharge pipe is connected with the mixing tank. The end of the discharging pipe is connected with the top of the mixing tank, and a discharging opening of the discharging pipe is formed in the axis of the mixing tank. A first L-shaped bracket is mounted on the upper surface of the mixing tank. The interior of the storage hopper and the interior of the mixing tank are divided into six cavities through the partition plates, so that various raw materials can enter the spiral conveyor at the same time to be preliminarily mixed, the preliminarily mixed raw materials fall onto the high-speed rotating distribution disc from the discharging pipe, and the raw materials are evenly dispersed into the mixing tank under the action of centrifugal force; and then the materials are stirred through the stirring blades, so that the mixing efficiency can be greatly improved, and the production time is shortened.
Owner:MISHENG BIOTECHNOLOGY (CHENGDU) CO LTD

Methods for determining the stability of a mass spectrometer and methods for testing the performance of a trace element analyzer

The present disclosure provides a method for determining the stability of a mass spectrometer and a method for testing the performance of a trace element analyzer.The procedure for the determination comprises: acquiring key performance parameters of the mass spectrometer to be evaluated; controlling the mass spectrometer to be evaluated to perform a performance test in order to obtain experimental data; performing a long-term state analysis based on the experimental data to obtain the statistical long-term state and the technical long-term state of individual key performance parameters, whereby the statistical long-term state characterizes whether the key performance parameter is in a controlled state within a specified time period, and the technical long-term state characterizes whether the key performance parameter lies within a specified parameter range within the specified time period; determining, based on the statistical long-term state and the technical long-term state, whether each of the key performance parameters meets a stability requirement.The method enables an accurate and efficient evaluation of the stability of a mass spectrometer's key performance during operation from two perspectives.
Owner:RELAIS (HANGZHOU) MEDICAL TECH CO LTD

Three-axis mixing device and method for producing trace element-containing fertilizer

This invention discloses a triaxial mixing device and method for producing fertilizers containing trace elements, relating to the field of material mixing technology. The device includes: a mixing chamber with a feeding box mounted on top; an extrusion assembly inside the mixing chamber including a first extrusion roller, a second extrusion roller, and an extrusion drive assembly; the second extrusion roller is located below the first extrusion roller; the first extrusion roller includes a first roller shaft, a sleeve, first roller teeth, and a shrinking assembly; the output end of the extrusion drive assembly is drively connected to the first roller shaft; the sleeve is coaxially fixed on the first roller shaft; the first roller teeth penetrate the sleeve and are slidably connected to the sleeve; when the first roller teeth rotate to the side wall position of the mixing chamber, under the drive of the shrinking assembly, the first roller teeth slide until the outer end face of the first roller teeth is located inside the outer surface of the sleeve, and the outer surface of the sleeve is in contact with the side wall of the mixing chamber; a stirring assembly is also provided inside the mixing chamber for mixing and stirring the extruded raw materials; this invention achieves graded extrusion of granular raw materials.
Owner:LIAONING JINDA FERTILIZER IND CO LTD

Copper alloy ingot, copper alloy foil, and method for manufacturing copper alloy ingot

The present invention aims to provide a copper alloy ingot with further improved uniformity of physical properties. The copper alloy ingot of the present invention has a composition containing at least one additive element, and the balance consisting of Cu and unavoidable impurities, the at least one additive element being a trace element at a concentration of 10 to 50 mass ppm, and the deviation in the concentration of the trace element in the length direction being within ±3.5 mass ppm relative to the average concentration of the trace element.
Owner:JX NIPPON MINING & METALS CORP

Multi-trace element injection and preparation method thereof

The invention belongs to the field of pharmaceutical preparations, and relates to a multi-trace element injection and a preparation method thereof. The multi-trace element injection comprises effective components, a stabilizer and water, the effective components comprise chromium chloride, copper chloride, ferric chloride, manganese chloride, sodium molybdate, sodium selenite, zinc chloride, potassium iodide and sodium fluoride, and the stabilizer comprises xylitol, a pH regulator and an additive; and the additive is PEG (Polyethylene Glycol) 400 or PEG 600. The multi-trace element injection provided by the invention can effectively inhibit the loss of iodine in the sterilization process, and the stability, economical efficiency and production controllability of the multi-trace element injection are fundamentally improved.
Owner:SHANDONG LINUO KEFENG PHARMA

Method and device for measuring iodine content of feed sample

The invention discloses a method and a device for measuring iodine content of a feed sample, and relates to the field of feed microelement detection.The device comprises a sample manufacturing unit and a sample measuring unit, the sample manufacturing unit comprises a crushing and screening all-in-one machine and a magnetic stirrer, and a screening plate is arranged in the crushing and screening all-in-one machine; the crushing and screening all-in-one machine is divided into a crushing chamber and a storage chamber from top to bottom through the screening plate, a feeding port communicated with the crushing chamber is formed in the top of the crushing and screening all-in-one machine, a first-stage shear type mechanism is arranged below the feeding port and used for simulating the shearing action of scissors, and a second-stage crushing mechanism is arranged in the crushing chamber and used for simulating the shearing action of the scissors. A fiber snapping mechanism is arranged between the secondary crushing mechanism and the screening plate, the fiber snapping mechanism is used for snapping fiber tissues of the feed, and the sample determination unit comprises a plasma mass spectrometer, so that the problem of incomplete crushing caused by fiber winding is avoided, the uniformity of feed samples is ensured, and detection errors caused by non-uniformity of the samples are reduced from the source.
Owner:GUANGDONG VOCATIONAL COLLEGE OF SCI & TRADE +1

Filling device for trace element water-soluble fertilizer

The utility model relates to the technical field of fertilizer filling, in particular to a trace element water-soluble fertilizer filling device which comprises a machine body and a recovery device, a tank body is installed on the surface of the machine body, a filling valve is installed on one side of the tank body, a workbench is arranged on the side, close to the filling valve, of the machine body, and the recovery device is arranged on the surface of the workbench. The recovery device comprises a box body, the box body is arranged on the lower surface of the workbench, the surface of the workbench is fixedly connected with a filter plate, the surface of the filter plate is provided with a plurality of discharging holes, the side, close to the filter plate, of the workbench is fixedly connected with an enclosure, the lower surface of the workbench is fixedly connected with a guide rail, the surface of the box body is provided with a sliding groove, and the guide rail is connected with the sliding groove in a clamped mode. One side of the box body is provided with a threaded hole, the material liquid permeated during filling can be conveniently recycled, the usability of equipment is improved, the cleaning burden of the equipment is reduced, meanwhile, the waste of the material liquid is reduced, and the economic loss of a user is further reduced.
Owner:WUHAN NATURES JOY PLANT NUTRI TECH

Preparation method and application of trace element synergistic nitrogen-phosphorus-potassium fertilizer

The invention relates to the technical field of fertilizer preparation, in particular to a preparation method and application of a trace element synergistic nitrogen-phosphorus-potassium fertilizer, the raw materials comprise the following components: a nitrogen-phosphorus-potassium compound fertilizer, a trace element mixture, mineral source humic acid, a synergistic aid, a chelating agent and water; the fertilizer comprises the following components in parts by weight: 55 parts of nitrogen-phosphorus-potassium compound fertilizer; the proportion of the trace element mixture is 12 parts; the proportion of the mineral source humic acid is 15 parts; the synergistic additive is potassium fulvic acid, and the proportion of the potassium fulvic acid is 8 parts; the proportion of the chelating agent is 5 parts; the water is deionized water, and the proportion of the water is 5 parts; the trace element mixture comprises 4 parts of zinc sulfate, 3 parts of borax, 2 parts of ferrous sulfate, 0.5 part of ammonium molybdate, 1 part of manganese sulfate, 0.5 part of copper sulfate and 1 part of potassium chloride; the invention aims to solve the problems that the existing fertilizer does not contain or contains trace elements which are difficult to absorb by crops and needs to be additionally and independently applied, so that the operation is tedious and the effect is poor.
Owner:ZHONGNONG HOLDINGS (SHANDONG) GROUP CO LTD

A trace element complex regulator and a preparation method thereof

The present application relates to a kind of trace element composite regulator and its preparation method, belong to the technical field of soil regulator.The preparation method of composite regulator includes the following steps: 1) humic acid is added to alkaline solution and stirred, after adding activator and heating reaction, temperature is reduced to room temperature, and modified humic acid is obtained;2) attapulgite and hydrochloric acid are stirred and mixed, washed, dried, after adding sodium chloride and stirring, solid is taken and washed again, after adding modifier and microwave treatment, modified humic acid is added and ground, freeze-dried, and mixture is obtained;3) the mixture and rice husk ash are stirred and mixed, and composite regulator is obtained.The present application is modified humic acid with modified attapulgite, modified attapulgite improves its hydrophobicity, and modified attapulgite forms adsorption to modified humic acid, so that the mixture is more stable, and trace element is less likely to be lost in the process of composite regulator regulating soil.
Owner:ANHUI SMART FERTILIZER TECH CO LTD

Early warning method and system for excessive catalysis of trace elements in biochar preparation

The present application belongs to the field of time series analysis and dynamic early warning technology, and provides a method and system for early warning of excessive catalysis of trace elements in the preparation of biochar, specifically: first, preset a data acquisition unit in the fixation channel, and record the collection position corresponding to the data acquisition unit as the fixation monitoring site; monitor the surface conductance value and the medium-temperature thermal history value in real time from each fixation monitoring site; then, evaluate the crystallization residence matching according to the surface conductance value and the medium-temperature thermal history value, and obtain the residual risk degree of each fixation monitoring site; finally, perform early warning of excessive catalysis according to the residual risk degree. The evaluation of crystallization residence matching through time series analysis can effectively quantify the residual risk of high-energy state surface free metal centers caused by the mismatch between the crystallization enrichment degree in the fixation step of the biochar preparation process and the residence in the medium-temperature zone in the pyrolysis process, thereby improving the consistency of the carbon sequestration capacity of the biochar product and the product qualification rate of the production process.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI

Blending mechanism for producing novel slow-release element fertilizer rich in trace elements

The utility model relates to the technical field of fertilizer production and preparation, and discloses a microelement-rich slow-release novel element fertilizer production mixing mechanism which comprises a tank body, a clamping block is fixedly connected to the outer wall of the tank body, a tank cover is slidably connected to the upper portion of the tank body, a first motor is fixedly connected to the interior of the tank cover, and a second motor is fixedly connected to the lower portion of the tank cover. The output end of the first motor is fixedly connected with a third connecting rod, the interior of the third connecting rod is rotatably connected with a second connecting rod, the interiors of the third connecting rod and the second connecting rod are rotatably connected with bolts, and a stirring assembly is arranged in the tank body. The stirring assembly comprises a first connecting rod, a spiral belt and a scraping plate. According to the stirring device, materials adhered to the inner wall of the tank body are scraped off by the rotating scraping plate, so that the waste of the materials is avoided, the loss of the materials is reduced, the production cost is reduced, the stirring roller is detached and cleaned, the bolt is rotated out of the connecting rod III and the connecting rod II, and then the stirring roller can be taken out and cleaned; and the practicability of the device is improved.
Owner:GARSONI FERTILIZER PINGYUAN

High-strength and high-conductivity Cu-zr alloy with trace elements and preparation method thereof

The application relates to a high-strength high-conductivity Cu-Zr alloy material added with trace elements and a preparation method thereof, and belongs to the technical field of copper alloy preparation and processing. The multiple strengthening mechanisms of the time aging strengthening of the micron and nanometer size precipitated phase formed by the combination of elements such as Si and Zr, the solid solution strengthening of atoms, and the work hardening caused by cold deformation are superposed, so that high strength is achieved. The copper alloy is prepared mainly through a combined deformation heat treatment process, has high strength and excellent electrical conductivity and plasticity, and the thermal stability of the alloy is improved. The copper alloy can be used as a lead frame and a rectifier device and applied to advanced fields such as rail transit and electrical electronics.
Owner:CENT SOUTH UNIV

Packaging bags (trace element water-soluble fertilizer)

1. Product name for appearance design: Packaging bag (trace element water-soluble fertilizer); 2. Product application for the design: packaging; 3. Key design elements of the product's appearance: the product's pattern; 4. The image or photograph that best illustrates the design's key features: the front view; 5. Flat product design, other views omitted.
Owner:HEILONGJIANG POLYTECHNIC

Method for detecting content of trace elements in titanium dioxide through ICP-OES

The invention belongs to the technical field of titanium dioxide production, and particularly relates to a method for detecting the content of trace elements in titanium dioxide through ICP-OES. Comprising the following steps: S1, weighing a titanium dioxide sample, digesting the titanium dioxide sample by adopting a hydrochloric acid-nitric acid-hydrofluoric acid system to obtain a first sample, and dividing the first sample into a plurality of parts; s2, taking one first sample as a substrate sample, respectively adding mixed standard solutions with different concentrations into other first samples, and respectively fixing the volumes of the mixed standard solutions and the substrate sample to obtain a second sample and the substrate sample after the volume fixing; s3, preparing ICP-OES (Inductively Coupled Plasma-Optical Emission Spectrometer) with a hydrofluoric acid-resistant sampling system, detecting the substrate sample and the second sample after volume metering, and generating a standard curve based on a detection result; and S4, based on the standard curve, calculating the content result of the trace elements in the substrate sample. The method provided by the invention overcomes the problems of difficult dissolution of titanium dioxide, more interference of trace element measurement and the like, is simple, convenient and rapid to operate, and effectively ensures the accuracy of a detection result.
Owner:PANGANG GROUP VANADIUM & TITANIUM RESOURCES CO LTD

Laser surface scanning imaging method for trace elements in diagenetic minerals

The invention provides a laser surface scanning imaging method for trace elements in diagenetic minerals, which comprises the following steps: (1) preparing a sample piece by using diagenetic minerals to be detected, carrying out microscopic observation on the structural characteristics of the sample piece, and determining a laser surface scanning area of the sample piece; (2) selecting a pipeline made of a Teflon material as a sample introduction pipeline; (3) performing instrument tuning on the laser ablation system and the inductively coupled plasma mass spectrometer; (4) setting on-machine test conditions, and carrying out on-machine test on the sample piece; (5) carrying out data processing on the original data obtained by testing and imaging; and (6) carrying out relative sensitivity factor correction on the semi-quantitative data to obtain a quantitative result of the to-be-detected element. According to the method, the data accuracy of LA-ICP-MS micro-area in-situ surface scanning is effectively ensured, the signal-to-noise ratio of the signal intensity and the imaging sensitivity are improved, the fabric characteristics of the sample are accurately expressed, meanwhile, the sample preparation procedure is simplified, the detection cost is reduced, and large-scale popularization and application are facilitated.
Owner:PETROCHINA CO LTD

Early warning method and system for excessive catalysis of trace elements in biochar preparation

The invention belongs to the technical field of time sequence analysis and dynamic early warning, and provides an early warning method and system for excessive catalysis of trace elements in biochar preparation, and the method specifically comprises the steps: firstly, presetting a data collection unit in a fixation channel, recording the collection position corresponding to the data collection unit as a fixation monitoring site, and recording the collection position corresponding to the data collection unit as the fixation monitoring site; the method comprises the following steps: monitoring a surface layer conductivity value and a medium-temperature thermal history quantity in real time from each fixation monitoring site, then performing crystallization residence matching evaluation according to the surface layer conductivity value and the medium-temperature thermal history quantity to obtain a residual risk degree of each fixation monitoring site, and finally performing excessive catalysis early warning according to the residual risk degree. The risk of high-energy-state surface free metal center residue caused by mismatching between the crystallization enrichment degree and temperature zone residence in the pyrolysis process in the fixation step of the biochar preparation process can be effectively quantified by performing crystallization residence matching evaluation through time sequence analysis; the carbon sequestration capability and effectiveness consistency of the biochar product and the product percent of pass of the manufacturing process are improved.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI

A trace element water-soluble fertilizer filling device

This utility model relates to the technical field of micronutrient water-soluble fertilizer filling devices, and in particular to a micronutrient water-soluble fertilizer filling device. Its clamping mechanism clamps the micronutrient water-soluble fertilizer tank, a sterilization mechanism sterilizes the inside of the tank, a feeding mechanism breaks up any clumps of micronutrient water-soluble fertilizer, and the broken micronutrient water-soluble fertilizer is discharged into the filling mechanism. The filling mechanism then discharges the micronutrient water-soluble fertilizer into the micronutrient water-soluble fertilizer tank, improving the practicality of the equipment. The device includes a clamping mechanism, a sterilization mechanism, a feeding mechanism, a filling mechanism, a discharge mechanism, and a discharge mechanism. The sterilization mechanism is mounted on the clamping mechanism, the feeding mechanism is mounted on the filling mechanism (located to the left of the clamping mechanism), and the discharge mechanism is located at the rear of the clamping mechanism and mounted on the discharge mechanism.
Owner:SHANDONG RUNHUA FEDERAL AGRI TECH CO LTD

Method for determining trace elements in metallic manganese

This application relates to a method for determining trace elements in metallic manganese. This method utilizes inductively coupled plasma mass spectrometry (ICP-MS) to determine trace elements in metallic manganese, achieving high sensitivity and accuracy in the detection of trace elements and improving the accuracy of analytical results. By employing matrix matching to eliminate interference, the method effectively reduces interference from other elements in the determination of trace elements, further enhancing the accuracy of the results. This method is applicable to the determination of trace elements in various types of metallic manganese samples, exhibiting broad applicability. Furthermore, the method's operation steps are simple and clear, easy to master, and readily applicable in practical work.
Owner:BEIJING BEIYE FUNCTIONAL MATERIALS CORP