297 results about "Trace element" patented technology

The invention relates to the technical field of oil and gas geological exploration, in particular to an over-mature hydrocarbon source rock parent material type distinguishing method and system.The method comprises the following steps that regional deposition characteristics are studied, an over-mature hydrocarbon source rock deposition environment is recognized, principal elements and microelements are extracted in combination with a geological background, and component relevance is judged; and sorting representative sedimentary environment elements, and establishing a sedimentary environment associated element set. According to the method, accurate recognition of the sedimentary environment is achieved by extracting major elements and trace elements, representative elements are screened, proportional analysis is combined with the macerals, distribution characteristics of saprolite groups, exinite groups and the like are determined, the ratio relation between the macerals and inorganic elements is recognized, a ratio operation set is constructed, and the relation between the macerals and the elements is analyzed in a multi-dimensional mode. The relationship between parent material types and maceral characteristics is disclosed, a maceral type index model is constructed, hydrocarbon source rock parent material type division precision and sedimentary environment analysis systematicness are improved, and a scientific basis is provided for oil and gas resource exploration.

The invention relates to the technical field of spectrum detection, in particular to a method for detecting the content of trace elements in quartz sand. The method comprises the following steps: acquiring spectral data of a quartz sand solution with gradient change of concentration; in each concentration spectrum, calculating an overlapping index according to the position and peak height difference of a spectrum peak and a previous spectrum peak, and screening abnormal spectrum peaks; analyzing the cross interference of the abnormal spectrum peak and the previous spectrum peak to obtain a distortion representation degree; obtaining the deviation influence degree according to the deviation of the abnormal spectrum peaks influenced by the silicon peaks among different concentrations, obtaining the concentration change interference degree according to the deviation amplitude variation trend of the distortion representation degree in the continuous concentration spectrum data in the ordered concentration, and correcting the spectrum data of the abnormal spectrum peaks to detect the content of the trace elements. According to the method, the spectrum data deviation of the quartz sand under the gradient concentration change is dynamically analyzed and quantified, so that the interference of the silicon element on the trace elements is eliminated, and the accuracy and reliability of the detection result of the content detection of the trace elements in the quartz sand are improved.

The invention discloses a method for detecting trace elements in a GH4169 high-temperature alloy by using secondary ion mass spectrometry, which specifically comprises the following steps: A1, firstly, carrying out necessary pretreatment on a GH4169 high-temperature alloy sample to remove surface pollution and an oxide layer; a2, selecting a time-of-flight secondary ion mass spectrometer, setting proper analysis parameters, and selecting a double-plasma O2 + ion source. The invention relates to the technical field of metal material trace chemical component analysis. According to the method for detecting the trace elements in the GH4169 high-temperature alloy by using the secondary ion mass spectrometry, a sample pretreatment process of the GH4169 high-temperature alloy is optimized, a double-plasma O2 + ion source and a low-energy electron gun charge compensation system of a time-of-flight secondary ion mass spectrometer are innovatively configured, deep analysis and a three-dimensional reconstruction algorithm are combined, and the trace elements in the GH4169 high-temperature alloy are detected. The sensitivity, the spatial resolution and the data reliability of trace element detection are obviously improved.

The silicon steel comprises the following components in percentage by weight: 0 to 0.005 percent of C, 1.3 to 2.8 percent of Si, 0.20 to 0.80 percent of Mn, 0 to 0.05 percent of P, 0.2 to 1.2 percent of Al, less than or equal to 0.005 percent of S, less than or equal to 0.005 percent of O, less than or equal to 0.005 percent of N, less than or equal to 0.003 percent of Nb, less than or equal to 0.003 percent of V, less than or equal to 0.003 percent of Ti, 0.001 to 0.005 percent of Ca, one or two of 0.02 to 0.15 percent of Sb, 0.02 to 0.15 percent of Sn and 0.1 to 0.4 percent of Cu, and the balance of Fe and inevitable impurities. By adding proper trace elements, adopting effective calcium treatment to control inclusions and matching with proper hot rolling, cold rolling and annealing processes, an unnormalized low-iron-loss high-magnetic-induction non-oriented silicon steel product is obtained. The minimum iron loss P15 / 50 of the manufactured non-oriented silicon steel product with the thickness of 0.5 mm is 2.73 w / kg, and the maximum magnetic induction intensity B50 / 50 can reach 1.735 T; the minimum iron loss P15 / 50 of the series with the thickness of 0.35 mm is 2.25 w / kg, and the maximum magnetic induction intensity B50 / 50 can reach 1.718 T.

The invention belongs to the technical field of chemical analysis of metallurgical standard samples, and discloses a super duplex stainless steel spectrum standard sample with high quality, high uniformity, high stability and accurate fixed value and a development method thereof. The method comprises the following steps: component design and raw material proportioning, smelting and casting, forging and homogenization treatment, primary inspection of uniformity and sample processing, uniformity inspection, constant value analysis and mathematical statistics, determination of characteristic values of standard samples, stability analysis of the standard samples after long-term storage, and traceability guarantee measures. The super duplex stainless steel spectrum standard sample comprises the following components in percentage by mass: 25%-26% of Cr, 6.50%-7.50% of Ni, 3.50%-4.50% of Mo, 0.23%-0.27% of N, 0.5%-1.0% of Cu, 0.5%-1.0% of W, and the balance of iron and inevitable impurities, and the content of trace elements including sulfur, aluminum and boron is controlled in a specific ppm level range.

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.

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%.

The invention relates to the technical field of land reclamation, and discloses a soil trace element dynamic monitoring method and system for land reclamation, and the method comprises the steps: obtaining a soil element data set; autocorrelation analysis is carried out according to the soil element data set, spatial interpolation is carried out according to obtained autocorrelation characteristics, and an element spatial distribution diagram is obtained; performing time sequence analysis according to the soil element data set to obtain time change characteristics; performing space-time coupling according to the element space distribution diagram and the time change characteristics to obtain space-time prediction model parameters; performing Bayesian optimization according to the space-time prediction model parameters to obtain optimized prediction model parameters; and carrying out distribution prediction according to the optimized prediction model parameters, the element spatial distribution diagram and the time change characteristics to obtain a trace element prediction result, and carrying out visualization. The method has the following effect that the dynamic monitoring accuracy of the soil trace elements can be improved.

The invention relates to the technical field of spectral measurement, in particular to a portable human body rubidium microelement detector and a spectral detection method. Converting the spectral data to obtain an absorbance curve; carrying out data segmentation on the absorbance curve, and calculating to obtain a baseline drift degree of the absorbance curve based on a segmentation result; performing baseline correction on the absorbance curve based on the baseline drift degree in combination with an iterative adaptive baseline correction algorithm to obtain an absorbance curve after baseline correction; and comparing the absorbance curve after the baseline correction with a standard absorbance-concentration curve to obtain the concentration of the rubidium element. According to the method, for the phenomenon that the content of the rubidium element is relatively low, the baseline drift degree of the spectral data is analyzed in a targeted manner, and the baseline drift degree is set as an iteration termination condition of an iteration self-adaptive baseline correction algorithm, so that a baseline drift part in the spectral data is separated, and the accurate content of the rubidium element in a sample is obtained on the basis of conversion.

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.

The invention relates to the field of trace element detection, in particular to a system for detecting the concentration of trace elements in water. The gas chamber is connected with the atomization device, is internally provided with a light path capable of dynamically adjusting the White cell, and is used for enhancing a spectral absorption signal of the low-concentration trace elements; the light path modulation module is mounted on the side wall of the gas chamber; the temperature control module is used for adjusting the temperature of the optical element and the air chamber; the spectrum detection module is arranged behind the light outlet of the gas chamber and is used for detecting a spectrum signal after the aerosol is absorbed; the ionization and mass spectrum module comprises an ionization source and a mass spectrometer, the ionization source is used for ionizing the aerosol in the gas chamber into ions, and the mass spectrometer is used for separating the ions according to the mass-to-charge ratio and detecting the ions. According to the invention, a spectrum and mass spectrum combined technology is adopted, a water sample to be detected is atomized into aerosol water drops, and high-sensitivity detection of trace elements in water is realized by enhancing a spectrum absorption signal of low-concentration trace elements.

The invention discloses a water-soluble fertilizer containing modified nano double-chelated medium trace elements, and belongs to the technical field of biological agriculture. The fertilizer is composed of sorbitol, glycerin, EDTA iron, EDTA zinc, potassium citrate, calcium citrate, magnesium sulfate heptahydrate, disodium ethylene diamine tetraacetate, an auxiliary agent and the like. The auxiliary agent is prepared from carboxymethyl chitosan, a modified nano auxiliary agent and polyethylene glycol, and the modified nano auxiliary agent is prepared from amylopectin, 8-hydroxyquinolone and isopropyl tri (dioctyl pyrophosphate acyloxy) titanate through a reaction. By adopting a double-chelation technology and a nanotechnology, the stability of trace elements in the fertilizer is remarkably improved, and nutrients are prevented from being lost and fixed in soil. And the absorption efficiency of the plants on elements such as iron, zinc and magnesium is improved by the nano-scale particles and the chelated nutrients. Field tests show that the fertilizer can significantly promote the growth of mung bean sprouts and improve the biomass and the content of medium trace elements in plants.

The invention provides a cultural relic age determination method and system, and relates to the technical field of cultural relic age determination, the method comprises the following steps: collecting a sample from a to-be-tested cultural relic, and cleaning, drying and crushing the sample to obtain a treated sample; performing elemental composition analysis on the sample through an energy dispersion X-ray fluorescence spectrophotometer to obtain the types and content ratios of main elements and trace elements in the sample; collecting similar cultural relic samples of known years, performing elemental composition analysis, and establishing a standard sample ratio of the known years; comparing the ratio of the types and contents of the main elements and the trace elements in the sample with the ratio of a standard sample of a known age, and fitting a calibration curve through a least square method according to a comparison data set; and optimizing the calibration curve, and calculating an absolute age estimation value of the cultural relic according to the optimized calibration curve. According to the method, interference of single element variation is reduced through multi-element correlation analysis, and historical relic age determination is carried out.

The invention relates to the technical field of geochemistry and logging, in particular to a method and system for predicting the content of major elements and microelements in marine shale, and the method comprises the steps: obtaining drilling coring and logging curve data, and carrying out the depth alignment of a feature response section and a coring section on a logging curve based on lithologic features; rock samples of different lithofacies are collected through a system, main trace element content testing is carried out, deep matching processing is carried out based on the characteristic response section after depth alignment, and main trace element content data and logging data are subjected to depth consistency integration; constructing a data set based on the main trace element content data and the logging data with consistent depth, and constructing a machine learning model by applying a random forest algorithm, the machine learning model performing hyper-parameter optimization and feature selection based on a multi-strategy improved sparrow search algorithm; and inputting the logging data with the depth to be predicted into the trained model to predict the content of the main quantity and the content of the trace elements.

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.

The invention discloses a microalloyed copper alloy, a preparation method and application, and the microalloyed copper alloy comprises the following components in percentage by mass: 0.05-2.0% of trace elements, 0.015-0.04% of P, and the balance of Cu and inevitable impurities. Wherein the trace elements comprise at least one of Ni or Zn. Mn can also be added into the copper alloy. According to the invention, the performance of the alloy is regulated and controlled by controlling the variety and proportion of the trace elements, so that the finally prepared copper alloy has excellent corrosion resistance and stress fatigue resistance on the basis of keeping good high strength, high pressure resistance and processability; the problems that an existing copper pipe is insufficient in pressure resistance and poor in corrosion resistance and fatigue resistance can be solved, and the copper pipe has wide application prospects in the fields of air conditioner refrigeration, electronic communication, aerospace and the like. Meanwhile, the copper alloy further has stable processing performance and meets the requirement for large-scale production.

The invention relates to the technical field of oil liquid detection, in particular to an oil liquid remote monitoring system and a monitoring method thereof, and the system comprises an oil liquid component monitoring module, a spectral feature analysis module, a component cross interference compensation module, an abnormal component screening module and an intelligent early warning module. According to the invention, continuous tracking of trace elements and chemical substances in the oil liquid is realized through real-time remote monitoring and data analysis of the spectrometer, monitoring of metal elements and oxides is more accurate by using a data processing technology, tiny changes of components can be captured in real time, and through detailed analysis of the spectral absorptivity, the detection accuracy of the oil liquid is improved. The system can identify potential anomalies and allow timely intervention at the initial stage of change, so that equipment failure or performance reduction is avoided, coupling weight and deviation value analysis are comprehensively utilized, understanding of complex interaction is greatly enhanced, and a comprehensive decision support basis is provided for risk management and early warning.

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.

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.

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.

The invention relates to the technical field of soil conditioners, in particular to a mineral type soil conditioner and a production process thereof. The invention overcomes the problem of insufficient soil fertility caused by enhanced toxic action of cations in soil and insufficient trace elements in soil. By screening the particle size of the fly ash, the adsorption rate of the soil conditioner to the heavy metals in the soil is improved; by controlling the adding amount of the KOH solid powder, the adsorption amount of the modified fly ash to lead and cadmium in the soil is increased; the content of exchangeable aluminum in the soil is reduced by controlling the adding amount of deionized water in the calcined material and the standing and aging time; by roasting the mixture at different temperatures, the content of calcium and magnesium in the soil is increased; by changing the adding parts of the water, the polyacrylamide, the limestone and the montmorillonite, the performance of the soil conditioner for solidifying the trace elements is further improved.

The present invention discloses a method for quantitative determination of trace harmful elements in various flotation products of rare polymetallic ores, which includes three parts: sample processing, preparation of complex matrix standard solution and sample testing. Each flotation product is digested with analytically pure concentrated nitric acid; the main mineral species of each product are determined by XRD, and the high-purity standard substances of each main associated mineral are digested with analytically pure concentrated nitric acid, and the content of harmful elements to be monitored is determined by ICP-MS after appropriate dilution; each standard substance digestion solution is diluted to a major element concentration of 1000μg / mL, and used to dilute the harmful element standard stock solution to obtain standard solutions with different concentration gradients; then the process blank and digestion sample are tested using an inductively coupled plasma mass spectrometer using a combination of internal standard method and matrix matching to obtain the content of trace harmful elements to be measured. It effectively overcomes the mass spectrometry and non-mass spectrometry interference problems faced by complex matrix sample testing, is suitable for the analysis and testing of trace element content in complex samples, and has a simple method and is easy to operate.

The invention discloses a culture base material for lepista sordida rich in strontium, zinc and germanium as well as a preparation method and application of the culture base material, and relates to the technical field of edible mushrooms. The culture base stock is prepared from the following raw materials: a nitrogen source, a carbon source, inorganic salt, spirulina, polyglutamic acid and compound bacteria, the compound bacteria comprise aspergillus niger, lactobacillus cavings-like and candida utilis; the culture base stock comprises trace elements; the trace elements comprise at least one of strontium, zinc and germanium. The culture base stock can effectively shorten the growth cycle of lepista sordida, improve the yield and the biotransformation rate, reduce the cost and promote enrichment of trace elements such as strontium, zinc and germanium in lepista sordida.

The invention relates to the technical field of lead-zinc deposit resource exploration, and discloses a method for judging deposit types by utilizing machine learning and sphalerite trace elements. The method comprises the following steps: establishing a data set by using multi-element data of sphalerite in different types of lead-zinc deposits in a global range, establishing a sphalerite trace element classification model by using a support vector machine learning algorithm based on Tree-structured Parzen Estimator optimization, and performing classification prediction on sphalerite samples based on a trained TPE-SVM model. And outputting the probability and classification result of each ore deposit type, and evaluating the performance of the model by using each evaluation index. And explaining and analyzing feature importance of the trained classification model by adopting an SHAP method, and qualitatively analyzing the contribution of each trace element content combination in distinguishing different lead-zinc deposit types, so as to establish a sphalerite trace element distinguishing index system.

The invention provides an improved authigenic mineral U-Pb dating method, and relates to the technical field of oil-gas exploration, and the method comprises the following steps: carrying out diagenetic age petrology analysis on a carbonate reservoir in a research area to prepare a plurality of parallel rock samples; carrying out diagenetic age microscopic mineralogical analysis on the parallel rock samples, and determining the diagenetic period of the carbonate reservoir in the research area; analyzing major elements, trace elements and rare earth elements of the parallel rock samples, determining a high U content area, and determining a diagenesis fluid source of the carbonate reservoir in the research area; and carrying out U-Pb isotope test analysis on the high U content region to obtain the diagenesis absolute age of different minerals or the same mineral of the carbonate reservoir in the research region. According to the method, dynamic quantitative recovery of the carbonate rock reservoir forming-reservoir forming dynamic process is achieved, and the defects that an existing method is low in dating success rate and high in test result multiplicity of solutions are overcome.

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.

According to the carbonate rock rare earth element content in-situ analysis method and device, carbonate rock samples are obtained, and the carbonate rock samples are from various rock forms or components; carrying out sample pretreatment on the carbonate rock sample to obtain a to-be-analyzed sample; detecting the calcium element content and the magnesium element content of the sample to be analyzed; detecting the contents of main trace elements and rare earth elements of a single carbonate mineral on the to-be-analyzed sample; and by taking the calcium element content as an internal standard, carrying out data processing on the main trace and rare earth element content of the single carbonate mineral to obtain the rare earth and yttrium element content of the single carbonate mineral. Therefore, the accurate original deposition signal of the carbonate rock sample is obtained, and the accuracy of the environmental condition and the geological history when the reconstructed sediment is formed is improved.

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.

The invention discloses a migration path tracking method based on cuttle bone microelement biogeochemical marking, and the method comprises the steps: analyzing the composition characteristics of microelements deposited in the whole life history process of cuttle bone, and combining the space-time correlation between the microelements and marine environment parameters, thereby building a migration path inversion model based on the microelements. Aiming at the technical bottlenecks of low sample recovery rate, limited space-time coverage of scientific investigation tracking and the like of the traditional marking method, the method has the advantages of economy and convenience in operation, and a reliable technical means is provided for the research of the cuttlefish migration path.

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.