75results about How to "High fluorescence yield" patented technology

The invention discloses a near-infrared silver sulphide quantum dot as well as a preparation method and application thereof. The silver sulphide quantum dot has a monoclinic phase structure, the particle diameter of the silver sulphide quantum dot is below 8nm, and the surface of the silver sulphide quantum dot can be connected and modified with a hydrophilic group of hydrophilic reagent containing sulfydryl. The preparation method comprises the following steps: fully reacting a mixed reaction system containing silver source and long-chain mercaptan in a sealed environment; cooling the mixed reaction system, and then adding a polar solvent; carrying out centrifugation and wshing to obtain a hydrophobic near-infrared silver sulphide quantum dot; fully mixing the hydrophobic near-infrared silver sulphide quantum dot and hydrophilic reagent containing sulfydryl in organic solvent to react; and carrying out centrifugation and washing the reacting mixture to obtain the biocompatibility near-infrared silver sulphide quantum dot. The quantum dot disclosed by the invention has the advantages of high fluorescence yield, good fluorescence stability, good biocompatibility and even size, and can be used for biological tissue imaging; and the preparation technology has moderate condition, short period and good repeatability, is simple to operate and is easy to control.

The invention relates to a separation free bioanalytical assay method for measuring an analyte from a biological fluid or suspension comprising of microparticles as a bioaffinity binding solid phase, a biospecific secondary reagent labelled with a two-photon fluorescent dipyrrometheneboron difluoride dye, focusing the laser into the reaction suspension, measuring two-photon excited fluorescence from single microparticles when they randomly float or are guided by the radiation pressure of the excitation laser through the focal volume of the laser beam using a two-photon fluorescent dipyrrometheneboron difluoride dye. The dye has the structure (II): Either at least one of groups R1, R2, R3, R4, R5, R6 and R7 is a substituted or unsubstituted phenyl, thienyl, pyrrolyl, furanyl, oxazolyl, isoxazolyl oxadiazolyl, imidazolyl, benzoxazolyl, benzothiazolyl, benzimidazolyl, benzofuranyl, indolyl, conjugated ethenyl, dienyl or trienyl group, and at least one of the groups R1, R2, R3, R4, R5, R6 or R7 is substituted to yield a chemically reactive group that can be used for selective covalent linkage to other molecules, and at least one of the groups R1, R2, R3, R4, R5, R6 or R7 is substituted to yield a water-solubilizing group, and the remaining groups of R1, R2, R3, R4, R5, R6 and R7 are each independently selected from the group consisting of hydrogen, halogen, alkyl, cyano, carboxy, each of which can optionally be substituted; or groups R1, R2, R3, R5, R6 and R7 are substituted or unsubstituted alkyl groups, R4 is a hydrogen or a substituted or unsubstituted alkyl, and at least one of the groups R1, R2, R3, R4, R5, R6 or R7 is substituted to yield a chemically reactive group that can be used for selective covalent linkage to other molecules; and at least one of the groups R1, R2, R3, R4, R5, R6 or R7 is su

The present invention discloses a multi-element perovskite material, and a single crystal, powder and a film thereof, as well as the applications thereof in photoluminescence and electroluminescence, in which the multi-element perovskite material is a multi-element fully-inorganic salt of non-lead metal halide and has a perovskite structure; and the chemical formula of the multi-element perovskite material is Cs2NaxAg1-xInyBi1-yCl6, wherein 0≤x≤1, 0≤y≤1. Meanwhile, based on the very strong self-trapped excitors states of the double perovskite, the present invention proposes a high-efficiency single-phase broadband phosphor and an electroluminescent device.

The invention relates to unsaturated dipyrromethene-boron borocarbons of formula (I) and the use thereof for fluorescence or electroluminescent analysis. The fluorescent properties are provided by the central ring of six atoms comprising the —N—B—N— sequence, R1 to R7 permitting the modification of the compound properties (fluorescence emission wavelength, quantitative fluorescent yield), at least one of the substituents S1 and S2 has a chromophore end group which permits an excitation of the molecule at wavelengths close to those of the substituent chromophore. A preferably selected from the chromophore substituents with a wavelength close to the ultraviolet which significantly increases the Stokes displacement.

The characteristics of the phosphor ZnS:Ag,Cl which has a considerably high fluorescence yield in response to incident particles thus allowing for their easy detection are used as such and combined with the finding that the fluorescence components in the range of shorter wavelengths are short-lived, which led to an improvement of counting characteristics, hence allowing for high-rate measurements of particles. When B370 was used as an optical filter to pick up fluorescence components shorter than 450 nm, the decay time of short-lived fluorescence components could be reduced from 370 ns to 200 ns.

The invention discloses a phenol antioxidant content measuring method with carbon quantum dots being a fluorescence indicator. Though the feature that fluorescence of the carbon quantum dots can be quenched by a benzoquinone material which is obtained from a reaction of a phenol antioxidant and reactive oxide free radicals, on the condition that the reactive oxide free radicals are excessive, thefluorescence quenching degree is in direction proportion to the concentration of a phenolic compound within a certain concentration range, and thereby, the concentration of phenolic substances can besensitively detected. The indicator carbon quantum dot synthesis method is simple, particularly, enteromorpha serves as the raw material of the carbon quantum dots, the cost of the raw material is further lowered, the fluorescence yield of the product is also high, and the detecting sensitivity is improved; the detecting method can be used for detecting the content of multiple phenolic antioxidants, the capability of capturing free radicals by different types of phenolic antioxidants can also be subjected to transverse evaluation, and the phenol antioxidant content measuring method has high value in the field of development of functional foods.

The present invention relates to a dinaphthyl ethylene derivative of formula (I), a process for preparing it, a film prepared from it useful in the manufacure of an organic light emitting device (OLED), an OLED including the film, and the use of the dinaphthyl ethylene derivative in the manufacture of an OLED.Wherein R1 to R16 are defined as in the specification.

The invention belongs to the technical field of nanomaterials and relates to an electrochemical preparation method of nitrogen-doped fluorescent carbon dots (NC-dots) with up-conversion and down-conversion functions. The method comprises the steps of by taking an organic solvent as a carbon source, taking an alkaline substance and the organic solvent as electrolytes and taking platinum sheets as a positive electrode and a negative electrode, setting the electrolysis potential to 2.0-30.0 volt in a constant-potential mode, and carrying out electrochemical carbonization on organic matters for 2-5 hours, thereby obtaining a reaction solution; collecting a product solution, neutralizing, standing, and precipitating, thereby obtaining a supernatant; adding alcohol to precipitate salts, so as to obtain a NC-dots alcoholic solution; evaporating and concentrating the NC-dots alcoholic solution, and dialyzing, thereby obtaining a NC-dots aqueous solution. The method has the advantages that the simplicity and convenience in NC-dots synthesis are realized, the NC-dots with monodispersity and uniform particle diameter are obtained, and the obtained NC-dots have higher fluorescence yield (QY= 26.8%) and have good up-converted and down-converted fluorescence.

The invention belongs to the field of material science and engineering and bioseparation engineering, and concretely relates to a preparation method for a fluorescent western-blotting magnetic composite microballoon. A miniemulsion polymerization method is employed to take phycocyanin as a molecular imprinting template and combine with a magnetically-sensitive fluorescent material, so that the phycocyanin molecular-imprinted-polymer magnetic fluorescent composite microballoon is obtained. By using the miniemulsion polymerization method, the molecular-imprinted-polymer microballoon integrates the magnetic and fluorescence double-responsive material, has specific recognition and autonomous adsorption on phycocyanin, is good in selectivity, high in adsorption efficiency, fast in speed, convenient and rapid for separation under the effect of an external magnetic field, and good in repeated usage performance, and is capable of realizing fluorescence real-time detection and fluorescence imaging at a relatively wide pH scope. Also the obtained magnetic core-shell blotting microballoon is regular in morphology and uniform in particle size. The preparation method has the advantages of low cost, simple and convenient operation, good reappearance and the like, and has wide application prospect.

The invention discloses preparation and application of a titanium dioxide composite photocatalytic system. A preparation method comprises the steps of (1) nanometer gold preparation; (2) nanometer gold-carbon quantum dot preparation; (3) nanometer gold-carbon quantum dot-titanium dioxide composite system preparation. Visible light is used for performing photocatalytic performance test on the prepared composite material; the excellent photocatalytic performance of the material is proved by degrading organic pollutants of nonyl phenol. By starting from the angle of the composite material, the nanometer gold-carbon quantum dots are used as a titanium dioxide sensitizer; in visible light, after the photolytic activity sensitizer absorbs energy, free electrons are excited out; the electrons aretransferred onto a conduction band of titanium dioxide and then take a reduction reaction with organic matters; a good degradation effect is achieved. Nontoxic and harmless carbon quantum dots are used for modifying the titanium dioxide; a titanium dioxide visible light photocatalytic system is built; the absorption capacity and the catalytic activity of the system are improved; the degradation efficiency on pollutants is enhanced.

The invention discloses a preparation method for copper-doped carbon quantum dots. The method comprises the following steps: Na2[Cu(EDTA)] with a saturated Schiff base planar structure is utilized asa carbon source and doping metal of the metal-doped carbon quantum dots, and after thermal decomposition is performed, the Na2[Cu(EDTA)] is converted into the copper-doped carbon quantum dots with copper coordination and a graphite structure. The quantum dots disclosed by the invention have a high fluorescence yield, and generate strong-oxidizing-performance hydroxyl free radicals .OH under visible light irradiation, the hydroxyl free radicals can penetrate cell walls of bacteria to enter the bacteria, prevent transportation of film-forming substances, and block respiratory systems and electron transmission systems of the bacteria, thereby effectively killing the bacteria; after the copper-doped carbon quantum dots are subjected to visible light irradiation for 45 min, a sterilization rateof the copper-doped carbon quantum dots to escherichia coli is 100%; and copper ions are a broad-spectrum bactericide, and the copper-doped carbon quantum dots are used as an effective photocatalystand generate active oxygen free radicals under visible light irradiation, and therefore a synergistic effect of the copper ions and the copper-doped carbon quantum dots enhances a photocatalytic sterilization effect on the escherichia coli.

The invention relates to a preparation method for a carbon quantum dot fluorescent probe used for detection of the concentration of nitric oxide in organisms. The carbon quantum dot is a powdery solidwith excellent water solubility, is synthesized from citric acid and L-cysteine through a microwave-assisted method, and has extremely high quantum yield which is up to 85%. The preparation method for the carbon quantum dot comprises the following steps: 1) dispersing and dissolving the citric acid and the L-cysteine in deionized water; 2) carrying out stirring and ultrasonic dispersion, and allowing the citric acid and the L-cysteine to be uniformly dispersed in a solution; 3) transferring a mixed solution into a microwave oven, and carrying out heating for 2 to 8 min; 4) carrying out cooling to a room temperature, adding water, and carrying out dissolving; 5) transferring an obtained solution into a centrifuge, and carrying out centrifuging at a high speed; and 6) subjecting a centrifuged solution to filtering and drying operations so as to prepare the carbon quantum dot. The carbon quantum dot prepared by using the method provided by the invention has the advantages of high fluorescence quantum yield, good chemical stability, photobleaching resistance and biological compatibility, and applicability to detection of the concentration of the nitric oxide in the organisms.

The invention provides a method for preparing gold-doped fluorescent carbon quantum dots. The method comprises the following steps: preparing an aqueous solution of a gold nanocluster-supported modified chitosan compound; and uniformly mixing the aqueous solution of the gold nanocluster-supported modified chitosan compound with an aqueous citric acid solution, and carrying out a hydrothermal reaction to obtain the gold-doped fluorescent carbon quantum dots. The double-fluorescence emission wavelength gold-doped fluorescent carbon quantum dots with the advantages of low toxicity, good biocompatibility, good water solubility, high fluorescence yield and good storage stability can be provided through the method.

The invention provides a 2,1,3-Benzothiadiazole-based D-A-A type near-infrared luminous compound and application thereof. The chemical structure of the 2,1,3-Benzothiadiazole-based D-A-A type near-infrared luminous compound is described in the description, wherein 2,1,3-Benzothiadiazole is taken as a main body, A is cyano, pyridine, sulfuryl or bis(2,4,6-trimethylphenyl) borane; D is diphenylamine, triphenylamine, 4,4'-dimethyl diphenylamine, 4,4'-dimethyl triphenylamine, 4,4'-dimethoxy diphenylamine or 4,4'-dimethoxy triphenylamine. The D-A-A type near-infrared luminous compound provided by the invention not only maintains the intense interaction of D-A, but also has higher fluorescence quantum yield. The luminescent spectrum and quantum yield of the luminous compound can be adjusted by adjusting the intensity of the D-A, so that the balance of the D-A is realized, and the efficiency of a near-infrared organic light emitting diode is further increased.

A brightness enhancement film used for coating quantum dots comprises a basal film. The basal film is coated with two layers of structures. A first layer of structure is thermal-curing molding acrylic resin containing the quantum dots and diffusion particles and is used for preventing water so as to protect quantum dot stability. A second layer of structure is UV epoxy resin which forms a prism structure through UV curing and is located on a first layer mechanism and is used for preventing oxygen so as to protect the quantum dot stability. In the invention, the acrylic resin and the epoxy resin are used to prevent water and oxygen, and the quantum dots are placed below the prism structure so that reflected large-angle incident light can be used to excite the quantum dots at a second time. Sensitivity of the quantum dots to water and oxygen is overcome and the quantum dots are fully excited. A fluorescence yield of the quantum dots is increased so that color display with a large color domain and high brightness is acquired.

The invention provides a synthesis method of high-fluorescence-efficiency Mn doping Cs2AgInCl6, and belongs to the technical field of semiconductor nanometer material preparation. According to the method, firstly, cesium chloride, silver chloride and indium chloride are mixed; then, grinding is performed; the mixture gradually becomes hard from puff white powder to be attached onto a container wall and then becomes soft; continuous grinding is performed until the mixture becomes the puff white powder again; next, manganese chloride is added; continuous grinding is performed until the pink ultra-dry manganese chloride is uniformly dispersed into a reaction system; when the pink color disappears, the grinding is stopped; the obtained product is cleaned by ethanol, and then dried for 2 hoursunder the vacuum conditions of 60 to 350 DEG C; high-fluorescence-efficiency Mn<2+> Cs2AgInCl6 is obtained. The synthesis method has the advantages that the operation is simple; the method is simple;the fluorescence quantum yield is high; the industrialized production can be easily realized, and the like.

The invention relates to a bis-heterocyclic triazene compound, and specifically relates to a 2,2'-bis(2-hydroxy-4-sulfonic-1-naphthylamine azoxyl)-5,5'-dimethyl-4,4'-bithiazole and a preparation method thereof. The preparation method comprises the following steps of: (1) preparation of 2,5-dibromohexanedione; (2) preparation of 2,2'-diamino-5,5'-dimethyl-4,4'-bithiazole; (3) preparation of 5,5'-dimethyl-4,4'-bithiazole-2,2'- bis-diazonium salt; (4) preparation of an objective product BHSNAADMBT. The technical scheme of the invention connects bithiazole heterocycle and naphthalene ring derivative with fluorescence property together to synthesize a reagent with double functional-analytical groups and large steric hindrance; and the compound of the invention not only has high reaction sensitivity with metal ions, but also has good selectivity. The reagent is a good photometric analysis developer and a novel fluorescence analytical reagent with high sensitivity and good selectivity as well.

The invention discloses fluorescently labeled polysaccharide. The fluorescently labeled polysaccharide is formed by covalently coupling polysaccharide to a fluorescent dye, and the fluorescent dye adopts the structure shown as a formula I in the specification. Polysaccharide molecules and fluorescent dye molecules form stable covalent bonds, so that the fluorescently labeled polysaccharide has high stability in serum and other detection environments, has high biocompatibility, and is suitable for detection of saccharide molecules inside and outside cells. Due to large Stokes shift of the fluorescent dye molecules, the fluorescently labeled polysaccharide also has the advantages of good fluorescent stability, high fluorescence quantum yield, and high signal-to-noise ratio of an imaging result. The invention discloses a preparation method of the fluorescently labeled polysaccharide. With the preparation method, a reaction condition is mild, the operation is simple, the reaction selectivity is high, and the fluorescently labeled polysaccharide with high yield can be prepared.

The invention relates to bis-triazene compound, in particular to a method for preparing 3, 3'-dihydroxy-4,4'-di(1,1'-dinaphthylamine azo group) azobenzene and application thereof. A molecular structural formula of the 3,3'-dihydroxy-4,4'-di(1,1'-dinaphthylamine azo group) azobenzene is shown as an illustration below. The method is characterized in that naphthylamine and 3,3'-dihydroxy-4,4'- dinaphthylamine azo group which have a fluorescent characteristic are combined together through a diazotization reaction and a coupling reaction, so that a conjugated system of the compound is increased to be a ditriazene reagent, and the fluorescent characteristic of the reagent is improved. The reagent is a fluorescent reagent which is high in sensitivity of detecting Ag (I) in an alkaline medium and good in selectivity. Therefore, the reagent is not only a good photometric analysis color reagent but also a fluorescent analysis reagent which is good in sensitivity and selectivity and low in detection limit, and can be used for detecting silver ions in the alkaline medium.

The present invention discloses a metal complex of a biscalix[4]arene derivative, having a chemical structure represented by formula II. The complex has a small toxicity and a high biocompatibility, is suitable for being covalently combined with nucleic acids, peptides, proteins or other biological molecules to form a fluorescent probe molecule having a high fluorescence quantum ratio, a long fluorescence lifetime and a low detection limit, is suitable for biomolecule detection in cells, tissues or living organisms, and has a broad application prospect in the field of biomedicines. The invention discloses a synthesis method of the complex. The method provides multiple selection routes for the synthesis of the complex, and has the advantages of simplicity and easiness in the synthesis routes, high yield in the obtained complex, and suitableness for large-scale production preparation of the complex.

The invention belongs to the field of nano-medicine and molecular imaging, and particularly relates to a fluorescent carbon dot for labeling of radionuclide iodine, a synthetic method of the fluorescent carbon dot and application in tumor imaging. The carbon dot is synthesized in one step and can be directly labeled with radionuclide iodine. A labeled product has excellent radiochemical stability and physicochemical stability and can be directly used for 124I-based PET (positron emission tomography), SPECT(125I-based single-photon emission computed tomography) imaging and 131I radiotherapy of a tumor region. The synthetic method of the fluorescent carbon dot is simple, price of raw materials is low, fluorescence efficiency is high, and biocompatibility is good; the fluorescent carbon dot has the advantage of rapid metabolism in vivo like small molecules, and can also be well enriched in the tumor region by effects of high permeability and long retention of nanoparticles to diagnose and treat a tumor.

The invention provides a manufacturing method of Mn-doped water-soluble group IIB-VIA nano particles, which comprises the following steps: using water as solvent to mix group IIB metal salt with manganese salt and sulfhydryl compounds, and regulating the pH value of the solution to 7.0-8.5; deoxidizing the mixed solution, adding group VIA non-metallic compounds, and heating under reflux in the presence of nitrogen gas; after the reaction is finished, cooling to room temperature, regulating the pH value of the reaction solution to 7-8, and concentrating the reaction solution; and regulating the pH value of the concentrated solution to 4-5, then adding precipitant, and carrying out centrifugal separation to obtain the Mn-doped water-soluble group IIB-VIA nano particles. Thus, efficient luminescent nano particles can be manufactured according to the manufacturing method of Mn-doped water-soluble group IIB-VIA nano particles.

The invention discloses a radiant scintillator type nuclear battery, and belongs to the technical field of nuclear energy utilization. The nuclear battery comprises a sealed shell, a radiant scintillator, a non-radiant scintillator, anti-reflection film and a semiconductor photovoltaic module. The radiant scintillator is surrounded by the non-radiant scintillator, and the anti-reflection film completely wraps the scintillators; the semiconductor photovoltaic module completely wraps the anti-reflection film, and the sealed shell is fixed to the outer wall of the semiconductor photovoltaic module. According to the radiant scintillator type nuclear battery, fluorescent materials and a radioactive source are integrated, the fluorescence yield is further increased, the damage caused by the external radioactive source to lattice structures of the scintillators is avoided, the size of the battery is reduced, the energy of the radioactive source is fully utilized, the output power of the battery is increased, and the battery is a novel way of the energy utilization of the radioactive source.

The invention discloses a metal complex of a double-cup[4]aromatic hydrocarbon derivative. The metal complex has a chemical structure as shown in formula II. The complex is small in toxicity, high inbiological compatibility, suitable for being covalently combined with biological molecules such as nucleic acid, peptide or proteins to form a fluorescent probe molecule with high fluorescent quantumrate, long fluorescent service life and low detection limit, suitable for detecting the biological molecules in cells, tissues or living bodies and wide in application prospect in the field of biological medicine. The invention discloses a synthetic method of the complex, provides various selection ways for the synthesis of the complex, is simple and easy in synthesizing a route, high in yield ofprepared complex and suitable for the mass production of the complex.

The invention provides a preparation method of II-VI family water-soluble selenide semiconductor quantum dots, which comprises the following specific steps: adding a stabilizer into solution containing soluble cadmium salt, soluble zinc salt or soluble mercury salt, then regulating the pH value of the solution to be be alkaline, then introducing hydrogen selenide gas under inert atmosphere, and reacting till the solution is pale yellow and transparent, thereby preparing solution of a precursor, wherein the molar ratio of the soluble cadmium salt, the soluble zinc salt or the soluble mercury salt to the stabilizer is 1: 3-1: 2. High-temperature and high-pressure fast growth is performed on the solution of the precursor, thereby preparing the II-VI family water-soluble selenide semiconductor quantum dots. For the preparation method, the operation is simple, the cost is low, the toxicity is small, and the prepared II-VI family water-soluble selenide semiconductor quantum dots can be directly used for biological fluorescent marking, clinical diagnosis and other experiments.

The invention discloses a method for improving the fluorescence yield and the stability of a bi-based perovskite nano material and a product. The method comprises the following steps: introducing long chain amine and a chloride source into a precursor raw material required by preparation of a quantum dot MA3Bi2Br9, and by regulating and controlling the adding ratios of the long chain amine and the chloride source which are introduced, finally obtaining a product shaped like (MAxOLA1-x)3Bi2ClyBr9-y. According to the method, under the intercalation action of the long chain amine, the shape and the appearance of the product can be changed from the quantum dot into a nano sheet, so that the stronger exciton confinement effect is achieved, and the fluorescence quantum yield can be increased; by the use of the high bond energy of a bismuth-chloride bond, the stability of the quantum dot MA3Bi2Br9 is improved, and surface defects are passivated, therefore, the fluorescence quantum yield of the final product is increased. After the improvement on constituents and the structure of the quantum dot MA3Bi2Br9, compared with the prior art, the method has the advantage of effectively improving the fluorescence yield and the stability of the bi-based perovskite nano material.

The invention discloses a preparation method of a gram-level nitrogen-doped graphene quantum dot capable of being used as fluorescent ink in the form of water and oil. The gram-level nitrogen-doped graphene quantum dot is prepared from cheap nitrilotriacetic acid as a raw material in reaction conditions of high temperature and high pressure environment by an oven commonly used in a laboratory as reaction equipment by the method of high temperature and pressure polymerization. The gram-level nitrogen-doped graphene quantum dot prepared by the method has the characteristics of uniform size, good dispersibility, high fluorescence yield, high purity and large yield and the like.

The invention discloses a novel method for ultrasonically and electrochemically synthesizing a water-soluble CdTe quantum dot, belonging to the field of material synthesis and solves the problems of low yield and strict reaction condition in a traditional aqueous-phase synthesis method of the quantum dot. By utilizing an ultrasonic electrochemical method and controlling test parameters such as reaction pH, current size, current pulse time, ultrasonic time, reaction temperature and response time, the semiconductor quantum dot CdTe can be synthesized once without the N2 protection and the preparation of a precursor, so that the purposes that the grain size of a monodisperse quantum dot is controllable and the fluorescence-emission wavelength is continuously adjustable are achieved. The semiconductor quantum dot CdTe obtained by utilizing the method has the advantages that the fluorescence-emission wavelength range is 509nm-560nm, the maximal quantum dot yield is 36%, a possibility is provided for applying the ultrasonic electrochemistry to the synthesis of other quantum dots, and the method has important significances to the application of the fields of solar cells, photocatalysis and sensors.

The invention relates to a method for detecting trivalent gold ions through a water-soluble fluorescence compound. The trivalent gold ions having different concentrations can be detected by employinga TPCANa aqueous solution to obtain a corresponding fluorescence curve; the trivalent gold ions concentration is taken as an abscissa, the relative fluorescence intensity (F0-F) / F0 is taken as ordinate, and the standard curve for detecting the concentration of the trivalent gold ions by TPCANa is obtained; in a scope of 40-175 [mu]mol / L, a linear regression equation is (F0-F) / F0=0.00688C-0.28209,a sample containing the trivalent gold ions is detected, the different fluorescence intensity can be detected for the trivalent gold ions with different concentrations by the TPCANa aqueous solution,and the result is substituted into the linear regression equation to obtain the trivalent gold ions concentration. The synthesized salt has good selectivity for identification of the trivalent gold ions, and has the advantages of wide linearity range, high sensitivity, simple synthetic method, and excellent water solubility.