CN110095434A - A method of phosphate radical is measured with Resonance Rayleigh Scattering Spectra - Google Patents
A method of phosphate radical is measured with Resonance Rayleigh Scattering Spectra Download PDFInfo
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- CN110095434A CN110095434A CN201910523137.8A CN201910523137A CN110095434A CN 110095434 A CN110095434 A CN 110095434A CN 201910523137 A CN201910523137 A CN 201910523137A CN 110095434 A CN110095434 A CN 110095434A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/51—Scattering, i.e. diffuse reflection within a body or fluid inside a container, e.g. in an ampoule
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N2021/6432—Quenching
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N2021/6495—Miscellaneous methods
Abstract
PO is measured with Resonance Rayleigh Scattering Spectra the invention discloses a kind of4 3‑Method, determination step are as follows: (1) prepare PO4 3‑Standard solution system, measuring Resonance Rayleigh Scattering peak intensity angle value at its 450nm is I；(2) preparation is free of PO4 3‑Placebo solution system, also measure its Resonance Rayleigh Scattering peak intensity angle value be I0；(3) Δ I=I-I is calculated0；(4) with Δ I to PO4 3‑Concentration work curve；(5) sample solution is prepared, measuring its Resonance Rayleigh Scattering peak intensity angle value is ISample, calculate Δ ISample=ISample‑I0；(6) according to working curve, the PO in sample is calculated4 3‑Concentration.The present invention is compared with existing method, this measuring method, which uses to be doped to containing the ammonium molybdate reacted with object, prepares new nitrating molybdenum carbon dots in carbon dots, the nitrating molybdenum carbon dots are to PO4 3‑With highly selective, and while reacting, is not required to again plus ammonium molybdate reaction object, method is easy, quickly, high sensitivity.
Description
Technical field
It is specifically a kind of to measure PO with Resonance Rayleigh Scattering Spectra the present invention relates to analytical chemistry field4 3-Method.
Background technique
Carbon dots (Carbon Dots, abbreviation CDs) are as a kind of novel small size carbon nanomaterial, because of its good light
The excellent characteristic such as stability, hypotoxicity, flexible modification, biocompatibility, highly-water-soluble and high photoluminescence quantum yield and
It is widely paid close attention to, currently, the method for synthesis carbon dots includes arc discharge method, laser ablation method, electrochemical synthesis, chemistry
Oxidizing process, combustion method, hydrothermal synthesis method, microwave process for synthesizing and template etc., meanwhile, in order to preferably highlight the Optimality of carbon dots
Matter modify to the carbon dots surface with various functions and then form codope carbon dots being used in actual analysis, by
In its excellent physics and chemical property, carbon dots have been applied successfully to detection metal ion, biological sample, neurotransmitter and agriculture
Medicine etc..Such as: there is document report to carry out highly sensitive and selectivity to Cr VI using N doping carbon dots (N-CDs) and examines
It surveys, in the case where ascorbic acid is not present, Cr(VI) it is imitated as quencher by self-filtering effect (IFE) and static quenching
The fluorescence of N-CDs should be quenched, the range of linearity of detection is 0.01-250 μm of ol/L, detection is limited to 5nmol/L；It is a kind of to use hydro-thermal
Synthetic method manufactures the carbon quantum dot of high fluorescence N doping, with high photostability, hypotoxicity and excellent biocompatibility etc.
Feature can be used as the fluorescence probe of cell imaging；A kind of carbon dots-Jenner based on novel fluorescence Resonance energy transfer (FRET)
The fluorescence probe of rice cluster hybridization (CDots-AuNCs) is led for measuring dopamine (DA) when adding DA into the probe solution
The fluorescent quenching at 610nm is caused, and the blue-fluorescence at 420nm restores, by the fluorescence intensity ratio for measuring 420 and 610nm
Variation, can detecte the DA of 5-180nmol/L, detection is limited to 2.9nmol/L；A kind of using unmarked biological plate is base
Organophosphorus pesticide is detected in the fluorescence and colorimetric bimodulus method of fluorescent carbon point (CDs) quenching of acetylcholinesterase (AChE) control
(OPs) method causes 5 due to reacting and generate thiocholine because of acetylthiocholine and AChE, 5- bis- thiobis (2- nitrobenzene
Formic acid) decomposition, form the thio -2- nitrobenzoic acid (TNBA) of 5- of yellow, meanwhile, with positive charge TNBA pass through dynamic
Quenching process is quenched the fluorescence of CDs, and with the presence of OPs, the enzymatic activity of AChE is blocked, cause fluorescence signal recovery and
With the reduction of color change, dual output analysis provides good absorbance intensity for quickly detection paraoxon (model analysis object)
Sensitivity, detection are limited to 0.4ng/mL.Through known to consulting literatures, there is not yet with nitrating molybdenum carbon dots (CDN/Mo) Resonance Rayleigh Scattering
Spectral detection PO4 3-The report of anion.
Resonance Rayleigh Scattering (Resonance Rayleigh Scattering, abbreviation RRS) spectrum is with high sensitivity, instrument
The advantages that device is simple, easy to operate and analysis is quick arouses widespread concern.The technology has been used for trace metal, non-
In metal, nanoparticle and Pharmaceutical Analysis.Such as: a kind of in the hydrochloric acid medium containing boric acid, Mo(VI) it is catalyzed bromide ion oxygen
Change iodide ion and generate iodine, then reacted with polyvinyl alcohol and generate blue-green compound, the Resonance Rayleigh Scattering at 670 nm is strong
There are good linear relationship between degree and a certain range of bromate concentration, the range of linearity is 1-30 μ g/L, and detection is limited to 0.5
The RRS method of the measurement bromate of μ g/L；It is a kind of based in the citric acid-sodium citrate buffer of pH 4.0, dodecane
Base benzene sulfonic acid sodium salt (SDBS) and tolusafranine (ST) can form ionic associate by electrostatic attraction and hydrophobic effect, anti-with polyethylene
Ternary association complex should be formed, the significant enhancing of Resonance Rayleigh Scattering (RRS) intensity is caused, measurement SDBS concentration is established and exists
Within the scope of 0.15-5.0 μ g/mL, the method for being limited to 8.6ng/mL is detected；One kind is in sulfuric acid medium, As(III) by NaBH4Also
Original shape is at AsH3Gas, then by Ce(IV)-I-The absorbent solution of catalysis captures, and leads to Ce(IV) concentration reduces and As particle increases
Adding, RRS and As(III) concentration is in a linear relationship in the range of 0.006-0.76 mg/L, and detection is limited to the side of 3.0 μ g/L
Method；There is researcher to coat glyphosate in CdTe/CdS quantum dot surface, has synthesized a kind of novel glyphosate functionalization CdTe/
CdS quantum dot (QDs), when improved QDs and calf thymus DNA (ct-DNA) interact, the RRS enhancing of system, QDs's
RRS intensity is directly proportional in the 0.482-90 μ g/mL range of linearity to ct-DNA concentration, and detection is limited to 0.146 μ g/mL；With one pot
The carbon dots (CDs) of method synthesis are as the nano-probe based on Resonance Rayleigh Scattering technology detection tannic acid (TA), prepared CDs
It can lead to the significant enhancing of scattered signal by hydrogen bond in conjunction with TA, establish a kind of 0.2-10.0 μm of ol/L TA's of measurement
Method, detection are limited to 9.0 nmol/L.
Phosphate is nutrient necessary to aquatile in natural environment, equally on inorganic chemistry, biochemistry and ground
It is also indispensable in terms of matter.However, excessive phosphate will lead to water eutrophication and aquatile quantity is lost
Weighing apparatus, causes serious influence to ecological environment.Therefore, resonance Rayleigh that is a kind of simple, sensitive and combining with carbon dots is developed to dissipate
Penetrating analysis method has great significance to the growth of human health, animals and plants.Detecting phosphatic method includes spectrophotometric
Method, chromatography, fluorescence analysis, electrochemical process and biosensor.Such as: have been reported that a kind of photoluminescent (PL) is visited
Needle, for based on the single-layer graphene quantum dot (s-GQDs-Al chelated with aluminium ion system3+) to phosphate anion (PO4 3-) into
Row detection enhances (AIEE) effect, Al by the transmitting of aggregation inducing3+The PL that s-GQD can be enhanced, with PO4 3-Addition,
s-GQDs-Al3+The PL of system fades away, and there are Al3+When, the PL intensity ratio (I/I of s-GQDs0) and PO4 3-Concentration exist
Proportional within the scope of 0.25-7.5 μm of ol/L, detection is limited to 0.1 μm of ol/L；One kind being based on Ce3+Mercaptopropionic acid (the MPA of modulation
The ZnS quantum dot (QDs) of the Mn doping of encapsulation, develops a kind of simple and quick room temperature phosphorimetry (RTP) for total-phosphorus detection
Sensor, the carboxyl electrostatic interaction on the surface ZnSQDs that the Mn that can be blocked with MPA is adulterated, this leads to the aggregation of QDs
And change RTP signal, phosphate and Ce3+High-affinity make Ce3+The surface dissociation of the ZnSQDs blocked from MPA, with phosphoric acid
Salt forms stable complex compound and recycles the RTP of QD, and total-phosphorus detection range is 8-320 mmol/L, and detection is limited to 2.71
mmol/L；A kind of saponification and ashing by Bio-diesel Samples establishes the side of phosphorus in spectrophotometry measurement biodiesel
Method, auxiliary agent KOH and K2SO4It is reacted with biodiesel and generates soap and soap ash, obtain soluble phosphoric acid potassium, this method Mo determination sample
The phosphorus content of product converts the podzolic process of soap for the catalysis podzolic process of biodiesel, and obtains higher phosphorus content, should
Method detection is limited to 0.37 mg/kg.Detection PO at present4 3-Method it is most commonly used be spectrophotometry and chromatography, however,
These methods have sensitivity it is not high, it is complicated for operation, vulnerable to interference the characteristics of.Since Resonance Rayleigh Scattering Spectral Method has letter
Just, feature quickly, sensitive and selectively good, but application nitrating molybdenum carbon dots Resonance Rayleigh Scattering Spectra measures PO4 3-Method also
It has not been reported.
Summary of the invention
The purpose of the present invention is for measurement PO4 3-Deficiency in the prior art, and a kind of Resonance Rayleigh Scattering light is provided
Spectrum measurement phosphate radical, that is, PO4 3-Method.This method is used to be doped in carbon dots containing the ammonium molybdate reacted with object and be prepared
New nitrating molybdenum carbon dots, the nitrating molybdenum carbon dots are to PO4 3-With highly selective, and while reacting, is not required to again plus ammonium molybdate reaction object, side
Method simplicity, quick, high sensitivity.
Realizing the technical solution of the object of the invention is:
It is a kind of to measure PO with Resonance Rayleigh Scattering Spectra4 3-Method, include the following steps:
(1) PO of known concentration is prepared4 3-Standard solution system: in one group of scale test tube, 50 μ L-200 μ L are sequentially added
The PO of 0.1000 mg/L4 3-Standard solution, 100 μ L-180 μ L 0.75mol/L H2SO4Solution, 150 μ L-300 μ L 25.67mg/
mL CDN/MoWith 100 μ L -180 μ L, 10 mg/mL tartaric acid, 1.5 mL are settled to secondary distilled water；
(2) it prepares placebo solution system: PO is not added with the method for step (1)4 3-Standard solution prepares placebo solution body
System；
(3) PO by step (1), (2) preparation is taken respectively4 3-Standard solution system and placebo solution system are poured into quartzy ratio
In color ware, on sepectrophotofluorometer, instrument parameter is set, scans the Resonance Rayleigh Scattering Spectra of acquisition system, measurement
Resonance Rayleigh Scattering peak intensity angle value at 450nm is I, while measuring the Resonance Rayleigh Scattering peak intensity of placebo solution system
Value is I0, calculate Δ I=I-I0；
(4) with Δ I to PO4 3-Concentration relationship work curve；
(5) sample solution is prepared according to the method for step (1), wherein the PO being added4 3-Standard solution replaces with sample solution, and
Resonance Rayleigh Scattering peak intensity angle value by the method measurement sample solution of step (3) is ISample, calculate Δ ISample= ISample- I0；
(6) working curve according to step (4), calculates sample solution PO4 3-Content.
Nitrating described in the technical program and molybdenum carbon dots (CDN/Mo) preparation method be: by 1.0g fructose, 1.2g urea and
50 mg/mL ammonium molybdate solution of 3mL ultrasonic dissolution in 9 mL secondary distilled waters, with micro-wave oven adjustment power 700W, heating
12min, cooled to room temperature add secondary distilled water to be settled to 30mL, and solution is centrifuged 15min in 10000rpm, takes supernatant
Liquid to get arrive CDN/Mo, CD is calculated with total carbonN/MoConcentration is 25.67 mg/mL.
Realizing the technical solution of the object of the invention is:
The technical program is PO in acid condition4 3-With nitrating molybdenum carbon dots (CDN/Mo) reacting generates phosphato-molybdic heteropolyacid, with
Addition PO4 3-Concentration increase, phosphato-molybdic heteropolyacid is attached to CDN/MoWhen surface, lead to resonance Rayleigh of the system at 450nm
Scattering strength linearly enhances, and Resonance Rayleigh Scattering phenomenon is more obvious, and can establish measurement trace PO4 3-Resonance Rayleigh Scattering analysis
New method.
The advantages of this method is: compared with the existing methods, this measuring method is used containing the molybdenum reacted with object
Sour ammonium is doped to and prepares new nitrating molybdenum carbon dots in carbon dots, the nitrating molybdenum carbon dots to phosphate radical have it is highly selective, and react when
It is not required to add ammonium molybdate reaction object again, easy, quick, the selective good, high sensitivity of method.
Detailed description of the invention
Fig. 1 is the Resonance Rayleigh Scattering Spectra figure in embodiment.
In figure, a. 75mmol/L H2SO4 +3.42mg/mL CDN/Mo+ 1 mg/mL tartaric acid；b. a+3.33μg/L
PO4 3-；c. a+6.67μg/L PO4 3-；d. a+10.0μg/L PO4 3-；e. a+11.33μg/L PO4 3-；f. a+13.33μg/L
PO4 3-。
Specific embodiment
The content of present invention is further elaborated below with reference to embodiment and attached drawing, but is not limitation of the invention.
Embodiment:
(1) PO of known concentration is prepared4 3-Standard solution system: this example sequentially adds 50 μ L, 100 μ L in 5 scale test tubes,
150 μ L, the PO of 170 0.1000 mg/L of μ L, 200 μ L4 3-Standard solution, 150 μ L 0.75mol/L H2SO4Solution, 200 μ L
25.67mg/mL CDN/MoWith 150 μ L, 10 mg/mL tartaric acid, 1.5 mL are settled to secondary distilled water；
(2) it prepares placebo solution system: PO is not added with the method for step (1)4 3-Standard solution prepares placebo solution body
System；
(3) PO by step (1), (2) preparation is taken respectively4 3-Standard solution system and placebo solution system are poured into quartzy ratio
In color ware, on F-7000 type sepectrophotofluorometer, instrument parameter measurement voltage is set as 400 V, slit is 5 nm, synchronous
The Resonance Rayleigh Scattering Spectra of acquisition system is scanned, the Resonance Rayleigh Scattering peak intensity angle value measured at 450nm is I, is measured simultaneously
The Resonance Rayleigh Scattering peak intensity angle value of placebo solution system is I0, calculate Δ I=I-I0；
(4) with Δ I to PO4 3-Concentration relationship work curve；Acquisition equation of linear regression is Δ I=6.24C-3.98, wherein
PO4 3- ConcentrationCUnit be μ g/L, the measurement range of linearity be 3.33-13.32 μ g/L, detect be limited to 0.45 μ g/L；
(5) sample measures: three kinds of samples of industrial wastewater are taken, it is accurate respectively to draw 10mL, and it first is filtered to remove suspended matter with filter paper, then
10 min are centrifuged at 10000 r/min, 100 μ L of Aspirate supernatant prepares sample solution according to the method for step (1), wherein plus
The PO entered4 3- Standard solution replaces with sample solution, and operates by step (2)-(3), calculates the Δ I of sampleSample= ISample
- I0；
(6) working curve according to step (4), calculates sample PO4 3-Content be 0.08 mg/L, 0.12 mg/L,
0.24 mg/L。
The verifying of this example detection method:
Each three parts, the PO that concentration is 3.33 μ g/L is added in supernatant samples after taking above-mentioned centrifugation4 3-Standard solution is added
Recovery experiment is marked, acquiring the rate of recovery is respectively 94.7%, 96.9%, 99.2%, relative standard deviation 2.1%, 2.9%, 3.5%.
Illustrate that this example detection method is accurate and reliable.
Claims (1)
1. a kind of measure PO with Resonance Rayleigh Scattering Spectra4 3-Method, characterized in that include the following steps:
(1) PO of known concentration is prepared4 3-Standard solution system: in one group of scale test tube, 50 μ L-200 μ L are sequentially added
The PO of 0.1000 mg/L4 3-Standard solution, 100 μ L-180 μ L 0.75mol/L H2SO4Solution, 150 μ L-300 μ L 25.67mg/
mL CDN/MoWith 100 μ L-180 μ L, 10 mg/mL tartaric acid, 1.5 mL are settled to secondary distilled water；
(2) it prepares placebo solution system: PO is not added with the method for step (1)4 3-Standard solution prepares placebo solution body
System；
(3) PO by step (1), (2) preparation is taken respectively4 3-Standard solution system and placebo solution system are poured into quartzy ratio
In color ware, on sepectrophotofluorometer, instrument parameter is set, scans the Resonance Rayleigh Scattering Spectra of acquisition system, measurement
Resonance Rayleigh Scattering peak intensity angle value at 450nm is I, while measuring the Resonance Rayleigh Scattering peak intensity of placebo solution system
Value is I0, calculate Δ I=I-I0；
(4) with Δ I to PO4 3-Concentration relationship work curve；
(5) sample solution is prepared according to the method for step (1), wherein the PO being added4 3-Standard solution replaces with sample solution, and
Resonance Rayleigh Scattering peak intensity angle value by the method measurement sample solution of step (3) is ISample, calculate Δ ISample= ISample- I0；
(6) working curve according to step (4), calculates sample solution PO4 3-Content.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5991367A (en) * | 1982-11-16 | 1984-05-26 | Fuaintetsuku Japan:Kk | Highly sensitive analysis of phosphate ion |
| CN101949846A (en) * | 2010-08-11 | 2011-01-19 | 昆明理工大学 | Leucomalachite green detection method |
| CN102495035A (en) * | 2011-12-06 | 2012-06-13 | 江南大学 | Quick and high-efficiency fluorescence detection method for phosphate ions |
| CN103293114A (en) * | 2012-02-22 | 2013-09-11 | 中国人民解放军海军工程大学 | Visual colorimetry for determination of phosphates |
| CN104359865A (en) * | 2014-11-05 | 2015-02-18 | 广西师范大学 | Resonance Rayleigh scattering spectra method measuring ammonia |
| CN104359879A (en) * | 2014-11-05 | 2015-02-18 | 广西师范大学 | Resonance Rayleigh scattering spectra method measuring tea polyphenol |
| CN108459009A (en) * | 2018-05-07 | 2018-08-28 | 广西师范大学 | A method of measuring phosphate radical with Surface enhanced Raman spectroscopy |
-
2019
- 2019-06-17 CN CN201910523137.8A patent/CN110095434A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5991367A (en) * | 1982-11-16 | 1984-05-26 | Fuaintetsuku Japan:Kk | Highly sensitive analysis of phosphate ion |
| CN101949846A (en) * | 2010-08-11 | 2011-01-19 | 昆明理工大学 | Leucomalachite green detection method |
| CN102495035A (en) * | 2011-12-06 | 2012-06-13 | 江南大学 | Quick and high-efficiency fluorescence detection method for phosphate ions |
| CN103293114A (en) * | 2012-02-22 | 2013-09-11 | 中国人民解放军海军工程大学 | Visual colorimetry for determination of phosphates |
| CN104359865A (en) * | 2014-11-05 | 2015-02-18 | 广西师范大学 | Resonance Rayleigh scattering spectra method measuring ammonia |
| CN104359879A (en) * | 2014-11-05 | 2015-02-18 | 广西师范大学 | Resonance Rayleigh scattering spectra method measuring tea polyphenol |
| CN108459009A (en) * | 2018-05-07 | 2018-08-28 | 广西师范大学 | A method of measuring phosphate radical with Surface enhanced Raman spectroscopy |
Non-Patent Citations (6)
| Title |
|---|
| BIN WANG等: "Synthesis of nitrogen- and iron-containing carbon dots,and their application to colorimetric and fluorometric determination of dopamine", 《MICROCHIM ACTA》 * |
| YINGSHI 等: "Resonance Rayleigh scattering technique for simple and sensitive analysis of tannic acid with carbon dots", 《SPECTROCHIMICA ACTA PART A: MOLECULAR AND BIOMOLECULAR SPECTROSCOPY》 * |
| 李俊芬等: "关于碳点性能提升的研究进展", 《分析科学学报》 * |
| 蒋治良等: "磷钼杂多酸-罗丹明S体系的共振散射光谱研究", 《化学学报》 * |
| 陈强: "比色法同时检测炉水中的硅酸根和磷酸根", 《化工管理》 * |
| 雷云等: "水热法合成氮、钴双掺杂的荧光碳点及其性能研究", 《分析仪器》 * |
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