CN107121401A - A kind of field quick detection and the Electrospun nano-fibers support for going iron ions - Google Patents
A kind of field quick detection and the Electrospun nano-fibers support for going iron ions Download PDFInfo
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- CN107121401A CN107121401A CN201710216058.3A CN201710216058A CN107121401A CN 107121401 A CN107121401 A CN 107121401A CN 201710216058 A CN201710216058 A CN 201710216058A CN 107121401 A CN107121401 A CN 107121401A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 238000001514 detection method Methods 0.000 title claims abstract description 49
- 239000002121 nanofiber Substances 0.000 title claims abstract description 33
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 25
- -1 iron ions Chemical class 0.000 title claims abstract description 20
- VFLDPWHFBUODDF-FCXRPNKRSA-N curcumin Chemical compound C1=C(O)C(OC)=CC(\C=C\C(=O)CC(=O)\C=C\C=2C=C(OC)C(O)=CC=2)=C1 VFLDPWHFBUODDF-FCXRPNKRSA-N 0.000 claims abstract description 66
- 235000012754 curcumin Nutrition 0.000 claims abstract description 37
- 239000004148 curcumin Substances 0.000 claims abstract description 34
- 229940109262 curcumin Drugs 0.000 claims abstract description 33
- VFLDPWHFBUODDF-UHFFFAOYSA-N diferuloylmethane Natural products C1=C(O)C(OC)=CC(C=CC(=O)CC(=O)C=CC=2C=C(OC)C(O)=CC=2)=C1 VFLDPWHFBUODDF-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000012528 membrane Substances 0.000 claims abstract description 18
- 229920000642 polymer Polymers 0.000 claims abstract description 16
- 238000001179 sorption measurement Methods 0.000 claims abstract description 8
- 238000002203 pretreatment Methods 0.000 claims abstract description 7
- 239000002062 molecular scaffold Substances 0.000 claims description 32
- 238000010521 absorption reaction Methods 0.000 claims description 20
- 238000004847 absorption spectroscopy Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 235000013305 food Nutrition 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 6
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 239000008346 aqueous phase Substances 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N EtOH Substances CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 3
- 229920002494 Zein Polymers 0.000 claims description 3
- 229920002301 cellulose acetate Polymers 0.000 claims description 3
- 239000005019 zein Substances 0.000 claims description 3
- 229940093612 zein Drugs 0.000 claims description 3
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 2
- 235000003392 Curcuma domestica Nutrition 0.000 claims description 2
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 2
- 235000003373 curcuma longa Nutrition 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 2
- 235000013976 turmeric Nutrition 0.000 claims description 2
- SDGKUVSVPIIUCF-UHFFFAOYSA-N 2,6-dimethylpiperidine Chemical compound CC1CCCC(C)N1 SDGKUVSVPIIUCF-UHFFFAOYSA-N 0.000 claims 1
- 244000008991 Curcuma longa Species 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 239000012071 phase Substances 0.000 claims 1
- 238000010041 electrostatic spinning Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 5
- 230000004044 response Effects 0.000 abstract description 5
- 150000002500 ions Chemical class 0.000 abstract description 3
- 238000002464 physical blending Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 16
- 229920002521 macromolecule Polymers 0.000 description 8
- 238000009987 spinning Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 238000005352 clarification Methods 0.000 description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical group CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000003891 environmental analysis Methods 0.000 description 4
- 210000003128 head Anatomy 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 235000021393 food security Nutrition 0.000 description 3
- 230000000873 masking effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 244000163122 Curcuma domestica Species 0.000 description 1
- 108020004711 Nucleic Acid Probes Proteins 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000001636 atomic emission spectroscopy Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000002853 nucleic acid probe Substances 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Substances [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0015—Electro-spinning characterised by the initial state of the material
- D01D5/003—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
-
- 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
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
-
- 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
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
- G01N2021/317—Special constructive features
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- Physics & Mathematics (AREA)
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
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- Mechanical Engineering (AREA)
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Abstract
The present invention discloses a kind of field quick detection and removes the Electrospun nano-fibers support of iron ions.High molecular polymer and curcumin are subjected to physical blending, Electrospun nano-fibers film is prepared into using electrostatic spinning technique.Under the conditions of certain ph etc., prepared Electrospun nano-fibers film can be with quick adsorption Fe3+, the color of nano fibrous membrane is changed into brown from yellow, and the response time is 30s, and naked eyes detection is limited to 1mM, to Fe3+Removal ability can reach 515mg/g nano fibrous membranes.Prepared Electrospun nano-fibers film can realize simple, quick field quick detection Fe3+, detection and the removing method of ion have been expanded, the limitations such as traditional large-scale instrument is expensive, instrument size is big, detection time-consuming, sample pre-treatments complexity are compensate for, and preparation technology is simple, it is with low cost, it is easy to promote.
Description
Technical field
The purpose of the present invention aims to provide a kind of field quick detection and goes the Electrospun nano-fibers branch of iron ions
Frame, this support can be used for the field such as environmental analysis and food security field quick detection.
Background technology
Current iron ion often mainly uses atomic absorption spectrography (AAS), atomic emission spectrometry, X-ray glimmering with detection method
The large scale equipments such as light spectroscopic methodology, inductively coupled plasma mass spectrometry are detected.These methods also have some limitations, such as instrument
Device is expensive, instrument size is big, time-consuming for detection, sample pre-treatments complexity etc..Thus it is necessary that exploitation can be used for scene
Quick detection and the method for going iron ions.
Field quick detection technology is easy, quick, efficient, economical, can preferably meet environmental analysis and food security is existing
The requirement of field quick detection, can make up the shortcoming of traditional large-scale instrument detection method.The current conventional quick detection in iron ion scene
Method includes Fluorescent Nucleic Acid Probe method, decorated by nano-gold method, chemical sensor method etc., and these methods have low test limit, Gao Ling
Sensitivity, the features such as can in real time be detected to sample.Due to compared to detecting material in the methods such as fluorescence nucleic acid molecules, nanogold
Potential pollution can be brought by being dispersed in solution, and Electrospun nano-fibers support is due to can be by support after detection is finished
Take out, sample detection liquid is significantly polluted from sample detection liquid so as to not result in, thus tool in quick detection at the scene
There is obvious advantage.
Detect and go in the research and development of iron ions in Electrospun nano-fibers support, journey silk waits (A of CN 104345043)
Polyacrylonitrile/silver nitrate nano fiber is prepared using electrostatic spinning process, polyacrylonitrile/silver nanoparticle is obtained through sodium borohydride reduction
Fiber membrane, then be placed in alkaline tetraethyl orthosilicate/ethanol solution, Surface coating silica is obtained by hydrolysis
Polyacrylonitrile/silver/silicon dioxide optical sensing nano fiber scaffold, the support can detect Fe3+、Cu3+、Hg3+、Cd3+、
Mn3+、Ni3+、Fe3+, lowest detection is limited to 0.17nM.Such support preparation method is cumbersome, and complex process is preparation-obtained to receive
Rice fibrous framework can detect different kinds of ions simultaneously, thus ion is easily interfered in detection.It is therefore desirable to develop
The Electrospun nano-fibers support of iron ions is only detected and gone under specified conditions.
The content of the invention
The purpose of the present invention aims to provide a kind of field quick detection and goes the Electrospun nano-fibers branch of iron ions
Frame, this support can be used for the field such as environmental analysis and food security field quick detection.
Can be used in the present invention, and goes the Electrospun nano-fibers support of iron ions to prepare at field quick detection
Journey is as follows：
1) prepared by electrostatic spinning solution：At room temperature, by macromolecule polymer solution that mass fraction is 4-12%, (solvent is
DMF etc.) stirring is to dissolving in constant temperature blender with magnetic force, and rotating speed is 200-600rpm, mixing time 2-
6h；Then, rotating speed is adjusted to 50-100rpm, stirring to solution clarification, transparent, bubble-free.Made with the stirring of 50-100rpm rotating speeds molten
Liquid clarification, transparent, bubble-free；Weigh 30-200mg curcumins/g high molecular polymers to be slowly added dropwise into above-mentioned solution, tinfoil paper
The processing of paper lucifuge, continuing the stirring of 50-100rpm rotating speeds makes curcumin and macromolecule polymer solution mix to uniform, and the time is
20-60min。
2) electrospun nanofibers film：The nano fibrous membrane of doping curcumin is prepared using electrostatic spinning technique.
Response parameter is as follows：It is 10-20cm to control the distance that temperature is 25-40 DEG C, humidity is 30%-40%, receiver and spinning head,
Static spinning high-voltage scope is that flow rate of liquid is 10-50 μ L/min in 15-30kV, syringe, and the reception time is 2-4h.
3) prepared by nano fiber scaffold：Nanofiber is made on nano fibrous membrane using a diameter of 0.4-1cm card punch
Support, diameter or the length of side are 0.4-1cm, and thickness is 1-5mm, and quality is about 0.5-5mg.
In nano fiber scaffold, curcumin is distributed in inside nanofiber and on surface, and surface is smooth, and color is bright Huang
Color, is added to Fe3+Fe can be adsorbed after in solution3+And brown is quickly turned to, naked eyes lowest detection is limited to 2mmol/L, and it is to Fe3+
Equilibrium adsorption capacity (removal amount) be 65-515mg/g nano fibrous membranes.
High molecular polymer includes：Polyacrylonitrile, cellulose acetate, zein, PLA, polylactic acid-glycollic acid, first
The common hydroxyethyl methacrylate of base methyl acrylate and the common hydroxy-ethyl acrylate of methyl methacrylate etc..
Nano fiber scaffold adds Fe3+Solution in pH1-2, in 30s i.e. color from bright xanthochromia be brown, visually to Fe3+
The lowest detection of solution is limited to 1mmol/L.
Nano fiber scaffold visual color is bright yellow, and its ultraviolet-visible absorption spectroscopy maximum absorption wave is a length of
426nm, nano fiber scaffold absorption Fe3+The a length of 461nm of its ultraviolet-visible absorption spectroscopy maximum absorption wave afterwards.
Fe in environment water and food is carried out using the nano fiber scaffold3+The method of detection is as follows：Quality is prepared first
Several parts of close load curcumin nano fibrous frameworks, prepare a series of standard Fe of concentration gradients3+Solution, pipettes 1mL standards Fe3 +Solution, which is added to, to be placed in the container for carrying curcumin nano fibrous framework, and 1min takes out, and dries 20min, and measurement UV, visible light is inhaled
Spectrogram is received, peak value is recorded, quality amendment is carried out, peak value and standard Fe when making ultravioletvisible absorption 461nm3+Solution concentration
Curve.Subsequent basis《Water and effluent monitoring analysis method (fourth edition)》With standard GB/T/T 5009.90-2003 (in food
Iron, magnesium, the measure of manganese) aqueous phase solution is prepared into the progress pre-treatment of required test sample, 1mL samples are taken, 1 load turmeric is added
Plain nano fiber scaffold, 1min takes out, and dries 20min, measures ultraviolet-visible absorption spectroscopy figure, records peak value, carries out quality and repaiies
Just, Fe in the 1mL samples is extrapolated according to standard curve3+Concentration, then extrapolate Fe in surveyed environment water or food3+It is dense
Degree.
The load capacity of curcumin in the bracket is 30-200mg/g nanofibers, the nanometer in the nano fiber scaffold
Fe in fibrous framework3+Equilibrium adsorption capacity (removal amount) is 65-515mg/g nano fibrous membranes.
Preparation technology of the present invention is simple, prepares with low cost, it is easy to promote, can be used for field quick detection.
Brief description of the drawings
Fig. 1 is the nanofiber preparation flow figure of load curcumin.
Fig. 2 is the nanofiber and Fe of load curcumin3+Cause what the ginger-colored color of nanofiber surface changed to show
It is intended to.
Curve is polymer molecule, and grey Y shape figure is curcumin, and grey post is nanofiber, and triangular graph is iron ion,
Black Y shape figure is to cause color change to be brown after being combined with iron ion.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out real premised on technical solution of the present invention
Apply, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following embodiments.
Embodiment 1
Concrete operations are as follows：
At room temperature, by mass fraction, for 8% polyacrylonitrile macromolecule polymer solution, (solvent is N, N- dimethyl formyls
Amine etc.) stirring is to dissolving in constant temperature blender with magnetic force, and rotating speed is 200-600rpm, mixing time 2-6h；Then, rotating speed is adjusted to
50-100rpm, stirring to solution clarification, transparent, bubble-free.With 50-100rpm rotating speeds stirring make solution clarify, it is transparent, without gas
Bubble；Weigh 30mg curcumins/g high molecular polymers to be slowly added dropwise into above-mentioned solution, the processing of masking foil lucifuge continues 50-
The stirring of 100rpm rotating speeds makes curcumin and macromolecule polymer solution mix to uniform, and the time is 40min.
Then, the nano fibrous membrane for the curcumin that adulterates is prepared using electrostatic spinning technique.Response parameter is as follows：Control temperature
It is 15cm for the distance that 25-40 DEG C, humidity are 30%-40%, receiver and spinning head, static spinning high-voltage scope is 20kV,
Flow rate of liquid is 20 μ L/min in syringe, and the reception time is 3h.
Then, nano fiber scaffold, diameter or the length of side are made on nano fibrous membrane using a diameter of 0.6cm card punch
For 0.6cm, thickness is 1mm, and quality is about 0.7mg.
In nano fiber scaffold, curcumin is distributed in inside nanofiber and on surface, and surface is smooth, and color is bright Huang
Color, is added to Fe3+Fe can be adsorbed after in solution3+And brown is quickly turned to, naked eyes lowest detection is limited to 2mmol/L, and it is to Fe3+
Equilibrium adsorption capacity (removal amount) be 65mg/g nano fibrous membranes.
Nano fiber scaffold adds Fe3+Solution in pH1-2, in 30s i.e. color from bright xanthochromia be brown, visually to Fe3+
The lowest detection of solution is limited to 1mmol/L.
Nano fiber scaffold visual color is bright yellow, and its ultraviolet-visible absorption spectroscopy maximum absorption wave is a length of
426nm, nano fiber scaffold absorption Fe3+The a length of 461nm of its ultraviolet-visible absorption spectroscopy maximum absorption wave afterwards.
Fe in environment water and food is carried out using the nano fiber scaffold3+The method of detection is as follows：Quality is prepared first
Close about 0.7mg several parts of load curcumin nano fibrous frameworks, prepare a series of standard Fe of concentration gradients3+Solution (0.5,
1,2,5,10,20,50,100,200,500,1000mmol/L) 1mL standards Fe, is pipetted3+Solution is added to placement load curcumin and received
In the container of rice fibrous framework, 1min takes out, and dries 20min, measures ultraviolet-visible absorption spectroscopy figure, records peak value, carries out matter
Amount amendment, peak value and standard Fe when making ultravioletvisible absorption 461nm3+The curve of solution concentration.Subsequent basis《Water and waste water prison
Survey analysis method (fourth edition)》With standard GB/T/T 5009.90-2003 (iron in food, magnesium, manganese measure) to it is required survey
Test agent carries out pre-treatment and is prepared into aqueous phase solution, takes 1mL samples, adds 1 load curcumin nano fibrous framework, and 1min takes
Go out, dry 20min, measure ultraviolet-visible absorption spectroscopy figure, record peak value, carry out quality amendment, extrapolated according to standard curve
Fe in the 1mL samples3+Concentration, then extrapolate Fe in surveyed environment water or food3+Concentration.
Embodiment 2
Concrete operations are as follows：
At room temperature, by mass fraction, for 12% cellulose acetate macromolecule polymer solution, (solvent is N, N- dimethyl
Formamide etc.) stirring is to dissolving in constant temperature blender with magnetic force, and rotating speed is 200-600rpm, mixing time 2-6h；Then, rotating speed
It is adjusted to 50-100rpm, stirring to solution clarification, transparent, bubble-free.With 50-100rpm rotating speeds stirring make solution clarify, it is transparent,
Bubble-free；Weigh 200mg curcumins/g high molecular polymers to be slowly added dropwise into above-mentioned solution, the processing of masking foil lucifuge continues
The stirring of 50-100rpm rotating speeds makes curcumin and macromolecule polymer solution mix to uniform, and the time is 30min.
Then, the nano fibrous membrane for the curcumin that adulterates is prepared using electrostatic spinning technique.Response parameter is as follows：Control temperature
It is 15cm for the distance that 25-40 DEG C, humidity are 30%-40%, receiver and spinning head, static spinning high-voltage scope is 20kV,
Flow rate of liquid is 20 μ L/min in syringe, and the reception time is 3h.
Then, nano fiber scaffold, diameter or the length of side are made on nano fibrous membrane using a diameter of 0.8cm card punch
For 0.8cm, thickness is 1mm, and quality is about 0.9mg.
In nano fiber scaffold, curcumin is distributed in inside nanofiber and on surface, and surface is smooth, and color is bright Huang
Color, is added to Fe3+Fe can be adsorbed after in solution3+And brown is quickly turned to, naked eyes lowest detection is limited to 2mmol/L, and it is to Fe3+
Equilibrium adsorption capacity (removal amount 515) be 80mg/g nano fibrous membranes.
Nano fiber scaffold adds Fe3+Solution in pH1-2, in 30s i.e. color from bright xanthochromia be brown, visually to Fe3+
The lowest detection of solution is limited to 1mmol/L.
Nano fiber scaffold visual color is bright yellow, and its ultraviolet-visible absorption spectroscopy maximum absorption wave is a length of
426nm, nano fiber scaffold absorption Fe3+The a length of 461nm of its ultraviolet-visible absorption spectroscopy maximum absorption wave afterwards.
Fe in environment water and food is carried out using the nano fiber scaffold3+The method of detection is as follows：Quality is prepared first
Close about 0.9mg several parts of load curcumin nano fibrous frameworks, prepare a series of standard Fe of concentration gradients3+Solution (0.5,
1,2,5,10,20,50,100,200,500,1000mmol/L) 1mL standards Fe, is pipetted3+Solution is added to placement load curcumin and received
In the container of rice fibrous framework, 1min takes out, and dries 20min, measures ultraviolet-visible absorption spectroscopy figure, records peak value, carries out matter
Amount amendment, peak value and standard Fe when making ultravioletvisible absorption 461nm3+The curve of solution concentration.Subsequent basis《Water and waste water prison
Survey analysis method (fourth edition)》With standard GB/T/T 5009.90-2003 (iron in food, magnesium, manganese measure) to it is required survey
Test agent carries out pre-treatment and is prepared into aqueous phase solution, takes 1mL samples, adds 1 load curcumin nano fibrous framework, and 1min takes
Go out, dry 20min, measure ultraviolet-visible absorption spectroscopy figure, record peak value, carry out quality amendment, extrapolated according to standard curve
Fe in the 1mL samples3+Concentration, then extrapolate Fe in surveyed environment water or food3+Concentration.
Embodiment 3
Concrete operations are as follows：
At room temperature, by mass fraction, for 10% zein macromolecule polymer solution, (solvent is N, N- dimethyl methyls
Acid amides etc.) stirring is to dissolving in constant temperature blender with magnetic force, and rotating speed is 200-600rpm, mixing time 2-6h；Then, rotating speed is adjusted
To 50-100rpm, stirring to solution clarification, transparent, bubble-free.Make solution clarification, transparent, nothing with the stirring of 50-100rpm rotating speeds
Bubble；Weigh 100mg curcumins/g high molecular polymers to be slowly added dropwise into above-mentioned solution, the processing of masking foil lucifuge continues 50-
The stirring of 100rpm rotating speeds makes curcumin and macromolecule polymer solution mix to uniform, and the time is 40min.
Then, the nano fibrous membrane for the curcumin that adulterates is prepared using electrostatic spinning technique.Response parameter is as follows：Control temperature
It is 20cm for the distance that 25-40 DEG C, humidity are 30%-40%, receiver and spinning head, static spinning high-voltage scope is 30kV,
Flow rate of liquid is 40 μ L/min in syringe, and the reception time is 3h.
Then, nano fiber scaffold, diameter or the length of side are made on nano fibrous membrane using a diameter of 0.6cm card punch
For 0.6cm, thickness is 2mm, and quality is about 1.5mg.
In nano fiber scaffold, curcumin is distributed in inside nanofiber and on surface, and surface is smooth, and color is bright Huang
Color, is added to Fe3+Fe can be adsorbed after in solution3+And brown is quickly turned to, naked eyes lowest detection is limited to 2mmol/L, and it is to Fe3+
Equilibrium adsorption capacity (removal amount) be 251mg/g nano fibrous membranes.
Nano fiber scaffold adds Fe3+Solution in pH1-2, in 30s i.e. color from bright xanthochromia be brown, visually to Fe3+
The lowest detection of solution is limited to 1mmol/L.
Nano fiber scaffold visual color is bright yellow, and its ultraviolet-visible absorption spectroscopy maximum absorption wave is a length of
426nm, nano fiber scaffold absorption Fe3+The a length of 461nm of its ultraviolet-visible absorption spectroscopy maximum absorption wave afterwards.
Fe in environment water and food is carried out using the nano fiber scaffold3+The method of detection is as follows：Quality is prepared first
Close about 1.5mg several parts of load curcumin nano fibrous frameworks, prepare a series of standard Fe of concentration gradients3+Solution (0.5,
1,2,5,10,20,50,100,200,500,1000mmol/L) 1mL standards Fe, is pipetted3+Solution is added to placement load curcumin and received
In the container of rice fibrous framework, 1min takes out, and dries 20min, measures ultraviolet-visible absorption spectroscopy figure, records peak value, carries out matter
Amount amendment, peak value and standard Fe when making ultravioletvisible absorption 461nm3+The curve of solution concentration.Subsequent basis《Water and waste water prison
Survey analysis method (fourth edition)》With standard GB/T/T 5009.90-2003 (iron in food, magnesium, manganese measure) to it is required survey
Test agent carries out pre-treatment and is prepared into aqueous phase solution, takes 1mL samples, adds 1 load curcumin nano fibrous framework, and 1min takes
Go out, dry 20min, measure ultraviolet-visible absorption spectroscopy figure, record peak value, carry out quality amendment, extrapolated according to standard curve
Fe in the 1mL samples3+Concentration, then extrapolate Fe in surveyed environment water or food3+Concentration.
It is the preferred embodiment of the present invention above, it is noted that parameter area or change in conversion above-described embodiment
The material of discoloration can be reacted to be other with iron ion by changing curcumin, what the present invention also can be achieved on, however it is not limited to above-mentioned reality
Apply example.A kind of Fe that the present invention is previously mentioned3+The electrospun scaffolds of field quick detection can be used for environmental analysis and food inspection
The quick analysis in scene in survey, and preparation technology is simple, it is with low cost, it is easy to promote.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (6)
1. a kind of field quick detection and the Electrospun nano-fibers support for going iron ions, it is characterised in that doping turmeric
The Electrospun nano-fibers film of element can be prepared into circular, square etc. for field quick detection and removal Fe3+Membrane-like branch
Frame, diameter or the length of side are 0.4-1cm, and thickness is 1-5mm, and quality is 0.5-5mg, curcumin be distributed in inside nanofiber and
On surface, surface is smooth, and color is bright yellow, is added to Fe3+Fe can be adsorbed after in solution3+And brown is quickly turned to, naked eyes are most
Low detection is limited to 2mmol/L, and it is to Fe3+Equilibrium adsorption capacity (removal amount) be 65-515mg/g nano fibrous membranes.
2. field quick detection according to claim 1 and the Electrospun nano-fibers support for going iron ions, it is special
Levy and be, the high molecular polymer includes：Polyacrylonitrile, cellulose acetate, zein, PLA, PLA-ethanol
The common hydroxyethyl methacrylate of acid, methyl methacrylate and the common hydroxy-ethyl acrylate of methyl methacrylate etc..
3. field quick detection according to claim 1 and the Electrospun nano-fibers support for going iron ions, it is special
Levy and be, the nano fiber scaffold adds Fe3+Solution is in pH1-2, and i.e. color is brown from bright xanthochromia in 30s, and naked eyes are right
Fe3+The lowest detection of solution is limited to 2mmol/L.
4. field quick detection according to claim 1 and the Electrospun nano-fibers support for going iron ions, it is special
Levy and be, the nano fiber scaffold visual color is bright yellow, its ultraviolet-visible absorption spectroscopy maximum absorption wave is a length of
426nm, the nano fiber scaffold adsorbs Fe3+The a length of 461nm of its ultraviolet-visible absorption spectroscopy maximum absorption wave afterwards.
5. field quick detection according to claim 1 and the Electrospun nano-fibers support for going iron ions, it is special
Levy and be, Fe in environment water and food is carried out using the nano fiber scaffold3+The method of detection is as follows：Quality phase is prepared first
Several parts of near load curcumin nano fibrous frameworks, prepare a series of standard Fe of concentration gradients3+Solution, pipettes 1mL standards Fe3+
Solution, which is added to, to be placed in the container for carrying curcumin nano fibrous framework, and 1min takes out, and dries 20min, and measurement UV, visible light is inhaled
Spectrogram is received, peak value is recorded, quality amendment is carried out, peak value and standard Fe when making ultravioletvisible absorption 461nm3+Solution concentration
Curve.Subsequent basis《Water and effluent monitoring analysis method (fourth edition)》With standard GB/T 5009.12-2010 (Pb in food
Measure) pre-treatment carried out to required test sample be prepared into aqueous phase solution, take 1mL samples, adding 1, to carry curcumin nano fine
Dimensional scaffold, 1min takes out, and dries 20min, measures ultraviolet-visible absorption spectroscopy figure, records peak value, quality amendment is carried out, according to mark
Directrix curve extrapolates Fe in the 1mL samples3+Concentration, then extrapolate Fe in surveyed environment water or food3+Concentration.
6. field quick detection according to claim 1 and the Electrospun nano-fibers support for going iron ions, it is special
Levy and be, the load capacity of curcumin in the bracket is 30-200mg/g nanofibers, the nanometer in the nano fiber scaffold
Fe in fibrous framework3+Equilibrium adsorption capacity (removal amount) is 65-515mg/g nano fibrous membranes.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717705A (en) * | 2022-03-25 | 2022-07-08 | 吴江市康佳纺织有限公司 | Warm-keeping fiber with velvet, fabric and preparation process of warm-keeping fiber |
-
2017
- 2017-04-04 CN CN201710216058.3A patent/CN107121401A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| AMORNRAT SAITHONGDEEA,等: ""Electrospun curcumin-loaded zein membrane for iron(III) ions sensing"", 《SENSORS AND ACTUATORS B:CHEMICAL》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717705A (en) * | 2022-03-25 | 2022-07-08 | 吴江市康佳纺织有限公司 | Warm-keeping fiber with velvet, fabric and preparation process of warm-keeping fiber |
| CN114717705B (en) * | 2022-03-25 | 2023-12-08 | 吴江市康佳纺织有限公司 | Thermal fiber with velvet and fabric and preparation process thereof |
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