CN107247042A - With the method for the aromatic hydrocarbons indirect fluoroscopic examination mercury ion of symmetry copolymerization post 5 and iodide ion - Google Patents
With the method for the aromatic hydrocarbons indirect fluoroscopic examination mercury ion of symmetry copolymerization post 5 and iodide ion Download PDFInfo
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- BQPIGGFYSBELGY-UHFFFAOYSA-N mercury(2+) Chemical compound [Hg+2] BQPIGGFYSBELGY-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 150000004945 aromatic hydrocarbons Chemical class 0.000 title claims abstract description 47
- 238000007334 copolymerization reaction Methods 0.000 title claims abstract description 43
- XMBWDFGMSWQBCA-UHFFFAOYSA-M iodide Chemical compound [I-] XMBWDFGMSWQBCA-UHFFFAOYSA-M 0.000 title claims abstract description 22
- 229940006461 iodide ion Drugs 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 21
- 150000001768 cations Chemical class 0.000 claims abstract description 13
- 238000010791 quenching Methods 0.000 claims abstract description 10
- 230000000171 quenching effect Effects 0.000 claims abstract description 10
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 74
- 229960001760 dimethyl sulfoxide Drugs 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 150000001450 anions Chemical class 0.000 claims description 10
- 229910001914 chlorine tetroxide Inorganic materials 0.000 claims description 5
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Chemical compound [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 claims description 5
- -1 Cd2 + Chemical compound 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 17
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 abstract description 6
- 150000001875 compounds Chemical class 0.000 abstract description 6
- 229910052740 iodine Inorganic materials 0.000 abstract description 6
- 239000011630 iodine Substances 0.000 abstract description 6
- 238000010534 nucleophilic substitution reaction Methods 0.000 abstract description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract description 3
- 125000001246 bromo group Chemical group Br* 0.000 abstract description 2
- 239000003446 ligand Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 42
- 102100024736 ATP-dependent RNA helicase DDX19B Human genes 0.000 description 37
- 101000830477 Homo sapiens ATP-dependent RNA helicase DDX19B Proteins 0.000 description 37
- 238000002189 fluorescence spectrum Methods 0.000 description 14
- 238000002474 experimental method Methods 0.000 description 8
- 229910052753 mercury Inorganic materials 0.000 description 7
- 239000012153 distilled water Substances 0.000 description 6
- 238000004448 titration Methods 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910000497 Amalgam Inorganic materials 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- AUYYCJSJGJYCDS-LBPRGKRZSA-N Thyrolar Chemical class IC1=CC(C[C@H](N)C(O)=O)=CC(I)=C1OC1=CC=C(O)C(I)=C1 AUYYCJSJGJYCDS-LBPRGKRZSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 150000002497 iodine compounds Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 208000030159 metabolic disease Diseases 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000005495 thyroid hormone Substances 0.000 description 1
- 229940036555 thyroid hormone Drugs 0.000 description 1
- 238000002211 ultraviolet spectrum Methods 0.000 description 1
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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"
- G01N21/643—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" non-biological material
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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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Abstract
The method that the present invention relates to the use of the aromatic hydrocarbons indirect of symmetry copolymerization post 5 identification mercury ion and iodide ion, belongs to cation detection technical field.5 benzene ring units of the aromatic hydrocarbons of symmetry copolymerization post 5 provide a good fluorescence signal group, and bromine atoms easily occur nucleophilic substitution with iodide ion and generate new compound（DBP5I）, and compound containing iodine easily with mercury ion ligand complex so that DBP5I fluorescent quenching.Therefore, using this property, mercury ion and iodide ion can be recognized indirectly.
Description
Technical field
The present invention relates to the method for a kind of aromatic hydrocarbons indirect of use symmetry copolymerization post 5 identification mercury ion and iodide ion, belong to
Cation detection technical field.
Background technology
Mercury is applied in industrial chemicals, electrical equipment, silver amalgam and battery by substantial amounts of at present, in its natural state
Mercury and the oxide of mercury have very big harmfulness to human body and natural environment.In order to detect and monitor various feelings
A kind of mercury under condition, it is necessary to effective method.In the method for various detection mercury ions, fluorescence probe method has highly sensitive
Degree, maneuverable feature, are increasingly paid close attention to by people.Up to the present, the fluorescence probe of many mercury ions has been
Through being synthesized, but most sensor all contains sulphur atom, and sulphur atom easily forms Hg-S keys with mercury, and causes identification
Process is irreversible, it is difficult to circulate.And the sensor of most of sulfur-bearing is all highly susceptible to disturb and influenceed in sulfur-rich environment,
It is difficult to the effect for playing detection mercury ion.Therefore being accomplished by a kind of fluorescent optical sensor without element sulphur is used to detect mercury ion.
Iodine is one of important element of synthesized human thyroid hormone, lacks the absorption surplus of iodine and iodine and can all influence body
Normal function, or even bring major disease, the abnormal development of such as brain, physique is short and small, physical efficiency is not enough and metabolic disorder.
Therefore, the detection of the content of iodine in environment and food is also very necessary.Because iodide ion its own charge density is loose and
Itself ionic radius is bigger than normal, therefore iodide ion sensor annoyings many researchers all the time.However, iodide ion easily occurs
Nucleophilic substitution, therefore, it can this characteristic using it to detect iodide ion.
Post aromatic hydrocarbons is used as macrocyclic host compound of new generation.Shown in terms of host-guest chemistry very outstanding
Effect.Due to containing multiple phenyl ring, therefore show outstanding fluorescence radiation performance.By the modification to post aromatic hydrocarbons structure, permitted
The fluorescence chemical sensor of multifunction is developed well.
The content of the invention
The purpose of the present invention is glimmering using symmetry copolymerization 5 aromatic hydrocarbons indirects of post there is provided one kind according to the property of post aromatic hydrocarbons
The method that light detects mercury ion and iodide ion.
First, the structure of the aromatic hydrocarbons of symmetry copolymerization post 5
The aromatic hydrocarbons of symmetry copolymerization post 5, labeled as DBP5.5 benzene ring units of the aromatic hydrocarbons of symmetry copolymerization post 5 provide one well
Fluorescence signal group, bromine atoms easily occur nucleophilic substitution with iodide ion and generate new compound（DBP5I）, and the change containing iodine
Compound easily with mercury ion ligand complex so that DBP5I fluorescent quenching.Therefore, using this property, it can recognize indirectly
Mercury ion and iodide ion.The structural formula of symmetry post aromatic hydrocarbons is as follows：
2nd, the fluorescence identifying performance of the aromatic hydrocarbons of symmetry copolymerization post 5
1st, to cationic fluorescent recognition performance
0.5mL DBP5 dimethyl sulphoxide solution is pipetted respectively（2×10-3 mol·L-1）With 0.5mL I−Dimethyl sulfoxide (DMSO)
Solution（5×10-3 mol·L-1）DBP5I solution is labeled as in a series of 10 mL colorimetric cylinders, and by the mixed solution.Then
Respectively Fe is added in the solution3+, Hg2+, Ca2+, Co2+, Ni2+, Cd2+, Pb2+, Zn2+, Cr3+, Mg2+, Ag+Dimethyl sulfoxide (DMSO)
Solution（5×10-4 mol·L-1）0.5 mL, plus distilled water 0.5mL, then be diluted to dimethyl sulfoxide (DMSO) 5mL, now DBP5I
Concentration be 2 × 10-4mol·L-1, cation concn is 0.25 times of DBP5I concentration.Placed 1 minute or so after well mixed,
Observe response of the acceptor to each cation.
It was found that, in DBP5I solution, it is separately added into after above-mentioned cationic solution, in corresponding ultraviolet spectra,
There is absworption peak at 295nm.In its corresponding fluorescence emission spectrum, Hg2+Addition emission peaks of the DBP5I at 328nm is disappeared
Lose（Fig. 1）, and the addition of remaining cation has no significant effect to the fluorescence spectrum of DBP5I solution.Accordingly, Hg2+Addition make
The fluorescent quenching of DBP5I solution, and the addition of remaining cation does not influence on the fluorescence of DBP5I solution.
2nd, the titration experiments of the aromatic hydrocarbons of symmetry copolymerization post 5 and mercury ion
Pipette 2.0mL DBP5I DMSO (aqueous 10%) solution（2.0×10-4mol/L）In quartz cell, with accumulation sample-adding method
It is gradually added into Hg2+ Dimethyl sulphoxide solution, survey its fluorescence emission spectrum in 25 DEG C（Fig. 2）.Titration experiments explanation, DBP5I's
Fluorescence intensity is by Hg2+The influence of concentration, weakens along with the increase of iron concentration.And obtained according to titration experiments
DBP5I is to Hg2+The detection of fluorescence spectrum be limited to 3.73 × 10−8mol/L.Thus illustrate, DBP5I can single selective fluorescence
Mercury ion is recognized, and it is very high to the detection sensitivity of mercury ion, and therefore, DBP5 has potential in terms of indirect detection mercury ion
Application value.
Fig. 3 is the Hg of various concentrations2+（0 ~ 0.08 times）In the presence of DBP5I fitting a straight line figure.Fitting a straight line figure can be clear
Clear clear reflection DBP5I fluorescence intensity is in 0 ~ 0.08 times of Hg2+Variation tendency in concentration range.Pass through fitting a straight line figure
It can be found that Hg2+In 0 ~ 0.08 times of equivalent, Hg2+Fluorescence intensity with DBP5I is in following linear relationship：
Y=- 2205.4269X+311, R2=0.9936
Y --- the aromatic hydrocarbons+I of symmetry copolymerization post 5-Fluorescence intensity：Unit：a.u.
X——Hg2+Relative concentration, unit：mol/L.
3rd, the cation interference free performance detection of the aromatic hydrocarbons of symmetry copolymerization post 5
In order to determine DBP5I to Hg2+Detection results, we have carried out following test again：Two groups of 10ml colorimetric cylinders are taken to add respectively
Enter 0.5mL DBP5 solution and 0.5mL I−Solution, then be separately added into the dimethyl sulphoxide solution of the various cations of 0.5mL（4
×10-3mol·L−1）, plus distilled water 0.5mL, 5mL scales are then diluted to dimethyl sulfoxide (DMSO).Add respectively again in another set
0.5mL Hg2+, 0.5mL Fe are separately added into each colorimetric cylinder3+, Ca2+, Co2+, Ni2+, Cd2+, Pb2+, Zn2+, Cr3+,
Mg2+, Ag+Dimethyl sulphoxide solution（5×10-4 mol·L-1）, plus distilled water 0.5mL, then it is diluted to dimethyl sulfoxide (DMSO)
5mL scales.Observed after above-mentioned solution is well mixed.
Above-mentioned solution left standstill is after 1 minute, and 25 DEG C are surveyed its fluorescence emission spectrum.As a result find, add above-mentioned ten kinds of cations
Afterwards, DBP5I fluorescent quenchings at 328nm, this and Hg2+Influence to DBP5I is consistent.So as to illustrate such DBP5 compound
Indirect detection Hg2+Do not disturbed by other cations（See Fig. 4）.
Experiment shows, in the aqueous DMSO solution of the aromatic hydrocarbons of symmetry copolymerization post 5, and the percentage by volume of water is 5 ~ 15%, symmetrically
Property the aromatic hydrocarbons of copolymerization post 5 concentration be 1 × 10-4~4×10-4mol·L-1, the aromatic hydrocarbons+I of symmetry copolymerization post 5−Can high sensitivity list
One Selective recognition Hg2+, and Hg2+Concentration and BTAP5 fluorescence intensity be in above-mentioned linear relationship.
4、DBP5+Hg2+Research to Anion Recognition performance
0.5 mL DBP5 DMSO solution (2 × 10 is pipetted respectively-3 mol·L-1) in a series of 10 mL colorimetric cylinders, respectively
Add 0.5 mL Hg2+DMSO solution (2 × 10-3 mol·L-1) form mixed system DBP5+Hg2+, F is then separately added into again−, Cl−, Br−, I−, AcO−, H2PO4 −, HSO4 −, ClO4 −, CN−、NO3 −DMSO solution (4 × 10-3 mol·L-1) 0.5 mL,
Plus distilled water 0.5mL, then it is diluted to 5mL with DMSO.Now acceptor DBP5+Hg2+Concentration is 2 × 10-4mol·L-1, anion is dense
Spend for 2 times of acceptor density.Observe acceptor DBP5+Hg2+Response to each anion.
As a result find, in fluorescence spectrum, only I−Addition cause DBP5+Hg2+Fluorescent quenching of the solution at 328nm
（λ ex=295nm）, and the addition of other anion, DBP5+Hg2+The fluorescence spectrum of solution does not have any obvious change（Fig. 5）,
Illustrate DBP5+Hg2+To I−Very strong single-minded selectivity is shown, therefore can high selectivity, highly sensitive fluorescence identifying I−。
5、DBP5+Hg2+With I−Titration experiments
Pipette 2.0mL DBP5+Hg2+Solution（2.0×10-4mol/L）In quartz cell, I is gradually added into accumulation sample-adding method−'s
Dimethyl sulphoxide solution, its fluorescence emission spectrum is surveyed in 25 DEG C（Fig. 6）.Titration experiments explanation, DBP5+Hg2+Fluorescence intensity by
To I−The influence of concentration, increases along with the increase of iodide ion concentration.And obtain DBP5+Hg according to titration experiments2+To I−The detection of fluorescence spectrum be limited to 3.51 × 10−7mol/L.Thus illustrate, DBP5+Hg2+Can single selective fluorescence identifying iodine from
Son, and it is very high to the detection sensitivity of iodide ion, therefore, DBP5+Hg2+Have in iodide ion context of detection and potentially apply valency
Value.
Fig. 7 is the I of various concentrations−（0 ~ 1.2 times）In the presence of DBP5+Hg2+Fitting a straight line figure.Fitting a straight line figure can be clear
Clear clear reflection DBP5+Hg2+Fluorescence intensity in 0 ~ 1.2 times of I−Variation tendency in concentration range.Pass through fitting a straight line figure
It can be found that I−In 0 ~ 1.2 times of equivalent and DBP5+Hg2+Fluorescence intensity be in preferable linear relationship：
Y=- 168.068X+321.191, R2=0.9950
Y——DBP5+Hg2+Fluorescence intensity：Unit：a.u.
X——I−Relative concentration, unit：mol/L.
6、DBP5+Hg2+Anion interference free performance detection
In order to determine DBP5+Hg2+To I−Detection results, we have carried out following test again：Take two groups of 10ml colorimetric cylinders difference
Add the 0.5mL DBP5+Hg2+Solution, then it is separately added into the dimethyl sulphoxide solution of the various anion of 0.5mL（4.0×10- 3mol·L−1）, plus distilled water 0.5mL, 5mL scales are then diluted to dimethyl sulfoxide (DMSO).Add 0.5mL in another set respectively again
I−, 0.5mL F are separately added into each colorimetric cylinder−, Cl−, Br−, AcO−, H2PO4 −, HSO4 −, ClO4 −, CN−, NO3 −Two
Methyl sulfoxide solution（4.0×10-3 mol·L-1）, plus distilled water 0.5mL, 5mL scales are then diluted to dimethyl sulfoxide (DMSO).
Observed after above-mentioned solution is well mixed.
Above-mentioned solution left standstill surveys its fluorescence emission spectrum after 1 minute in 25 DEG C.As a result find, add above-mentioned nine kinds of the moon from
After son, DBP5+Hg2+The fluorescent quenching at 328nm, this and I−To DBP5+Hg2+Influence be consistent.So as to illustrate such
DBP5+Hg2+Compound test I−Do not disturbed by other anion（See Fig. 8）.
Experiment shows, in the aqueous DMSO solution of the aromatic hydrocarbons of symmetry copolymerization post 5, and the percentage by volume of water is 5 ~ 15%, symmetrically
Property the aromatic hydrocarbons of copolymerization post 5 concentration be 1 × 10-4~4×10-4mol·L-1, the aromatic hydrocarbons+I of symmetry copolymerization post 5−Can high sensitivity list
One Selective recognition I−, and I−Concentration and BTAP5+ Hg2+Fluorescence intensity be in above-mentioned linear relationship.
Brief description of the drawings
Fig. 1 is DBP5I（DBP5+I−）And fluorescence spectrum when adding 11 kinds of cation（Excitation wavelength：295nm, hair
The long 328nm of ejected wave）.
Fig. 2 is the Hg of various concentrations2+（0 ~ 0.4 times）In the presence of DBP5I fluorescence spectrum.
Fig. 3 is the Hg of various concentrations2+（0 ~ 0.08 times）In the presence of DBP5I fitting a straight line figure.
Fig. 4 is the interference free performance that DBP5I is recognized to mercury ion；1 ~ 22 represents DBP5I, Hg respectively2+、Fe3+、Ca2+、Co2 +、Ni2+、Cd2+、Pb2+、Zn2+、Cr3+、Mg2+And Ag+。
Fig. 5 is DBP5+Hg2+And its fluorescence spectrum when adding 2 times of anion（Excitation wavelength：295nm, transmitted wave
It is long：328nm）.
Fig. 6 is the I of various concentrations−Acceptor DBP5+Hg in the presence of (0 ~ 2.4 times)2+Fluorescence spectrum.
Fig. 7 is the I of various concentrations−（0 ~ 1.2 times）In the presence of DBP5+Hg2+Fitting a straight line figure.
Fig. 8 is DBP5+Hg2+The interference free performance recognized to iodide ion；1 ~ 20 represents DBP5, DBP5+Hg respectively2++I−、F−、Cl−、Br−、AcO−、H2PO4 −、HSO4 −、ClO4 −、CN−、NO3 −。
Embodiment
Below by specific embodiment to the aromatic hydrocarbons of symmetry copolymerization post 5 of the present invention（DBP5）Indirect detects Hg2+、I−Side
Method is described further.
Embodiment 1, detection Hg2+
Pipette DBP5 DMSO solution（2×10-3 mol·L-1）In a series of 10 mL colorimetric cylinders, I is first separately added into−'s
DMSO solution（5×10-3 mol·L-1）；Fe is separately added into again3+, Hg2+, Ca2+, Co2+, Ni2+, Cd2+, Pb2+, Zn2+, Cr3+, Mg2 +, Ag+Dimethyl sulphoxide solution（5×10-4 mol·L-1）If, the fluorescent quenching of solution, that illustrate addition is Hg2+If,
The fluorescence of solution does not change, then what explanation was added is other cations.
Embodiment 2,
Detect I−Ion
Pipette DBP5 DMSO solution（2×10-3 mol·L-1）In a series of 10 mL colorimetric cylinders, Hg is first separately added into2+'s
DMSO solution（2×10-3 mol·L-1）；It is separately added into F thereto again−, Cl−, Br−, I−, AcO−, H2PO4 −, HSO4 −, ClO4 −,
CN−、NO3 −Solution（4×10-3 mol·L-1）If, the fluorescent quenching of solution, that illustrate addition is I−；If the fluorescence of solution is not
Change, then what explanation was added is other anion.
Claims (10)
1. with the method for the aromatic hydrocarbons indirect fluoroscopic examination mercury ion of symmetry copolymerization post 5, it is characterised in that：In a series of symmetry
In the aqueous DMSO solution of the aromatic hydrocarbons of copolymerization post 5, I is first added−；Cation Fe is separately added into again3+, Hg2+, Ca2+, Co2+, Ni2+, Cd2 +, Pb2+, Zn2+, Cr3+, Mg2+, Ag+Dimethyl sulphoxide solution, if the fluorescent quenching of solution, illustrate add be mercury ion,
If the fluorescence of solution does not change, illustrate addition is other cations.
2. as claimed in claim 1 with the method for the aromatic hydrocarbons indirect fluoroscopic examination mercury ion of symmetry copolymerization post 5, its feature exists
In：I−Addition be 2 ~ 3 times of the aromatic hydrocarbons mole of symmetry copolymerization post 5.
3. as claimed in claim 1 or 2 with the method for the aromatic hydrocarbons indirect fluoroscopic examination mercury ion of symmetry copolymerization post 5, its feature
It is：In the aqueous DMSO solution of the aromatic hydrocarbons of symmetry copolymerization post 5, the concentration of the aromatic hydrocarbons of symmetry copolymerization post 5 is 1 × 10-4~4×10-4mol·L-1。
4. as claimed in claim 1 or 2 with the method for the aromatic hydrocarbons indirect fluoroscopic examination mercury ion of symmetry copolymerization post 5, its feature
It is：
Hg2+With the aromatic hydrocarbons+I of symmetry copolymerization post 5−Fluorescence intensity be in following linear relationship：
Y=- 2205.4269X+311, R2=0.9936
Y --- the aromatic hydrocarbons+I of symmetry copolymerization post 5-Fluorescence intensity：Unit：a.u.
X——Hg2+Relative concentration, unit：mol/L.
5. as claimed in claim 1 with the method for the aromatic hydrocarbons indirect fluoroscopic examination mercury ion of symmetry copolymerization post 5, its feature exists
In：In the aqueous DMSO solution of the aromatic hydrocarbons of symmetry copolymerization post 5, the percentage by volume of water is 5 ~ 15%.
6. with the method for the aromatic hydrocarbons indirect fluoroscopic examination iodide ion of symmetry copolymerization post 5, it is characterised in that：In a series of symmetry
The aqueous DMSO solution of the aromatic hydrocarbons of copolymerization post 5（The percentage by volume of water is 10%）, first it is separately added into Hg2+；It is separately added into thereto again
F−, Cl−, Br−, I−, AcO−, H2PO4 −, HSO4 −, ClO4 −, CN−, NO3 −Solution, if the fluorescent quenching of solution, illustrates what is added
It is I−；If the fluorescence of solution does not change, illustrate addition is other anion.
7. as claimed in claim 6 with the method for the aromatic hydrocarbons indirect fluoroscopic examination iodide ion of symmetry copolymerization post 5, its feature exists
In：Hg2+Addition be 1 ~ 2 times of the aromatic hydrocarbons mole of symmetry copolymerization post 5.
8. the method for the aromatic hydrocarbons indirect fluoroscopic examination iodide ion of symmetry copolymerization post 5, its feature are used as claimed in claims 6 or 7
It is：In the aqueous DMSO solution of the aromatic hydrocarbons of symmetry copolymerization post 5, the concentration of the aromatic hydrocarbons of symmetry copolymerization post 5 is 1 × 10-4~4×10-4 mol·L-1。
9. the method for the aromatic hydrocarbons indirect fluoroscopic examination iodide ion of symmetry copolymerization post 5, its feature are used as claimed in claims 6 or 7
It is：I−With the aromatic hydrocarbons+Hg of symmetry copolymerization post 52+Fluorescence intensity be in following linear relationship：
Y=- 168.068X+321.191, R2=0.9950
Y——DBP5+Hg2+Fluorescence intensity：Unit：a.u.
X——I−Relative concentration, unit：mol/L.
10. the method for the aromatic hydrocarbons indirect fluoroscopic examination iodide ion of symmetry copolymerization post 5, its feature are used as claimed in claims 6 or 7
It is：In the aqueous DMSO solution of the aromatic hydrocarbons of symmetry copolymerization post 5, the percentage by volume of water is 5 ~ 15%.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107827818A (en) * | 2017-11-20 | 2018-03-23 | 西北师范大学 | The application of gelator and organogel of the one kind based on post [5] aromatic hydrocarbons |
| CN108088828A (en) * | 2017-12-22 | 2018-05-29 | 西北师范大学 | A kind of twin columns aromatic hydrocarbons mercury ion fluorescent sensor and its preparation and application |
| CN108640198A (en) * | 2018-05-02 | 2018-10-12 | 南京工业大学 | A method of hexavalent chromium in water body is removed based on absorption method |
| CN110441279A (en) * | 2019-08-29 | 2019-11-12 | 云南民族大学 | A kind of application of phosphonic acids column [5] aromatic hydrocarbons in identification ferrous ion, copper ion or aluminium ion |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107827818A (en) * | 2017-11-20 | 2018-03-23 | 西北师范大学 | The application of gelator and organogel of the one kind based on post [5] aromatic hydrocarbons |
| CN107827818B (en) * | 2017-11-20 | 2021-04-20 | 西北师范大学 | Gel factor based on column [5] arene and application of organogel |
| CN108088828A (en) * | 2017-12-22 | 2018-05-29 | 西北师范大学 | A kind of twin columns aromatic hydrocarbons mercury ion fluorescent sensor and its preparation and application |
| CN108088828B (en) * | 2017-12-22 | 2020-07-28 | 西北师范大学 | Double-column aromatic mercury ion fluorescent sensor and preparation and application thereof |
| CN108640198A (en) * | 2018-05-02 | 2018-10-12 | 南京工业大学 | A method of hexavalent chromium in water body is removed based on absorption method |
| CN110441279A (en) * | 2019-08-29 | 2019-11-12 | 云南民族大学 | A kind of application of phosphonic acids column [5] aromatic hydrocarbons in identification ferrous ion, copper ion or aluminium ion |
| CN110441279B (en) * | 2019-08-29 | 2021-10-22 | 云南民族大学 | Application of phosphonic acid column [5] arene in recognition of ferrous ions, copper ions or aluminum ions |
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