CN105906522A - Amantadine artificial antigen and preparation method and application thereof - Google Patents

Amantadine artificial antigen and preparation method and application thereof Download PDF

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Publication number
CN105906522A
CN105906522A CN201610280030.1A CN201610280030A CN105906522A CN 105906522 A CN105906522 A CN 105906522A CN 201610280030 A CN201610280030 A CN 201610280030A CN 105906522 A CN105906522 A CN 105906522A
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amantadine
antigen
preparation
formula
application
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秦誉
丁亚芳
李延山
张秀芹
吴雨洋
王照鹏
杨柳
李向梅
聂丽
贾良曦
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BEIJING WDWK BIOTECHNOLOGY Co Ltd
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BEIJING WDWK BIOTECHNOLOGY Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C231/00Preparation of carboxylic acid amides
    • C07C231/02Preparation of carboxylic acid amides from carboxylic acids or from esters, anhydrides, or halides thereof by reaction with ammonia or amines
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C233/00Carboxylic acid amides
    • C07C233/01Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C233/02Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
    • C07C233/09Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to carbon atoms of an acyclic unsaturated carbon skeleton
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/435Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • C07K14/76Albumins
    • C07K14/765Serum albumin, e.g. HSA
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/435Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • C07K14/76Albumins
    • C07K14/77Ovalbumin
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/795Porphyrin- or corrin-ring-containing peptides
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K16/00Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
    • C07K16/44Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material not provided for elsewhere, e.g. haptens, metals, DNA, RNA, amino acids
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/53Immunoassay; Biospecific binding assay; Materials therefor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/53Immunoassay; Biospecific binding assay; Materials therefor
    • G01N33/577Immunoassay; Biospecific binding assay; Materials therefor involving monoclonal antibodies binding reaction mechanisms characterised by the use of monoclonal antibodies; monoclonal antibodies per se are classified with their corresponding antigens

Abstract

The invention discloses an amantadine hapten, a corresponding artificial antigen and a preparation method and application of the amantadine hapten and the corresponding artificial antigen. The amantadine hapten is a product as shown in formula 1, and the amantadine antigen can be obtained by connecting the product with carrier protein. The amantadine antigen can be used for preparing an amantadine specific antibody. The preparation method is simple and practicable, low in cost and high in hapten yield. The amantadine artificial antigen has the advantages that the specific antibody aiming at amantadine can be produced by immunizing animals, the amantadine artificial antigen can be used for preparing an enzyme-linked immunosorbent assay kit for detecting amantadine residues, and the amantadine artificial antigen is simple, fast, large in sample processing amount, high in sensitivity, high in specificity, and the like.

Description

A kind of amantadine artificial antigen and preparation method and application
Technical field
The invention belongs to technical field of food safety detection, be specifically related to a kind of amantadine haptens, antigen preparation side Method and application thereof.
Background technology
Amantadine (Amantadine, 1-adamantanamine) is synthesized in nineteen sixty, also known as amantadine, three ring last of the ten Heavenly stems Amine, it is 1-amantadine or the organic compound of 1-aminoadamantan, it is meant that its structure composition is an adamantane main chain With four methine positions have a substituted-amino.For white crystalline powder, bitter, soluble in water or ethanol.It is mainly used in By the prevention of the respiratory tract infection caused by influenza A virus and for the treatment of influenza a virus infection patient, the U.S. in Asia flu within popular 1966, ratify its as preventive medicine, and confirmed as on the basis of preventive medicine in 1976 treatment Medicine, is also used for parkinson's syndrome in addition;Its antiviral spectrum is narrower, has obvious inhibiting effect to influenza A, can after medication Substantially reduce the death rate.2005, report, Chinese poultry resource peasant household used amantadine to protect bird anti-avian influenza, Rising at that time, regulator of Chinese Government has forbidden that it uses as veterinary drug.
Curative effect and the security of adult patients are the most extensively admitted by amantadine.But therapeutic dose with have side effects Dosage very close to, to People and have chronic heart and lung diseases or the dosage of kidney trouble person and drug dosage schedule to be difficult to determine, because of These popularization and application the most clinically.In Japan, amantadine is always as Parkinsonian curative, until ability quilt in 1998 Approval is for the treatment of influenza A virus infectious diseases.Common adverse reactions has central nervous system and gastrointestinal reaction, table Now for having a dizzy spell, absent minded, have a headache, have a sleepless night, anxiety and anorexia, feel sick, after drug withdrawal, bad reaction is immediately Disappearing, rare bad reaction has constipation, mouth and nose to be dried.The Ministry of Agriculture sends " disease-resistant about examination amantadine etc. for 2005 The emergency notice of cytotoxic drug ", it is distinctly claimed amantadine, Rimantadine etc. and stops immediately producing, managing and use, offender is by raw Produce, manage false veterinary drug and use disabling veterinary drug to process.Therefore, for guaranteeing the safety of animal derived food and export abroad trade Development, sets up accurately and reliably, and highly sensitive qualitative-and-quantitative method is the most necessary.
The external enzyme linked immunological kit having developed detection amantadine, but the kit of domestic production is accurately Property, sensitivity, the aspect such as specific can't be fully achieved the requirement of detection.Amantadine haptens disclosed by the invention, anti- Originally it was that development amantadine antibody and amantadine enzyme linked immunological kit provide raw material further.Amantadine enzyme linked immunological Reaction kit utilizes competitiveness enzyme-linked immune response principle, firm to tissue (beef, chicken and pork) and other Gold Samples The residual of alkanamine quantitatively detects.
Summary of the invention
It is an object of the invention to provide a kind of amantadine haptens, antigen preparation procedure and application thereof.
The amantadine haptens that the present invention provides, is compound shown in formula 1:
Formula 1.
The invention also discloses the preparation method of product shown in formula 1, comprise the steps:
0.94g adamantanamine hydrochloride is dissolved in 30ml anhydrous pyridine, adds maleic anhydride 0.49g, after dissolving, adds 4-diformazan ammonia Yl pyridines 10mg, 70 DEG C of back flow reaction 3h, rotation is evaporated off pyridine, adds deionized water 10ml, and pH5.0 adjusted by glacial acetic acid, separates out a large amount of Precipitation, filters, water washing and precipitating, dried haptens.
The amantadine antigen that the present invention provides, is conjugate product shown in formula 1 and carrier protein couplet obtained.
The present invention also protects the preparation method of described amantadine antigen, comprises the steps:
Weigh 5.57mg haptens and be dissolved in 1ml DMF, add EDC 4.3mg, NHS 5.2mg, reaction 2h is stirred at room temperature;50mg BSA is dissolved in 5ml 0.1M sodium bicarbonate buffer liquid, is added dropwise in protein solution by above-mentioned pharmacological activation, was stirred at room temperature At night, PBS 4 degree dialyses 72 hours, and period changes dislysate 6 times.Dislysate is aseptically crossed the filter membrane in 0.22 μm aperture, Being sub-packed in ampere bottle ,-20 degree preserve.
Coating antigen is prepared with method.
Common carrier albumen all can use, including bovine serum albumin(BSA) (BSA), ovalbumin (OVA), human serum albumins (HSA), mouse serum albumin (MSA), thyroprotein (TG) or hemocyanin (KLH) etc..
Described amantadine antigen can prepare amantadine specific antibody as immunogen immune animal, it is also possible to makees ELISA Plate is prepared for coating antigen.
Described antibody specific can be monoclonal antibody.
Product shown in formula 1, described amantadine antigen, described antibody all can be applicable to detect amantadine.
The present invention also disclosed the enzyme linked immunological applying amantadine antigen and amantadine monoclonal antibody to prepare Kit.
Described enzyme-linked immunologic detecting kit, be by be coated with the ELISA Plate of amantadine antigen, enzyme labelled antibody working solution, Amantadine serial standards, substrate nitrite ion, stop buffer, concentration redissolution liquid, concentrated cleaning solution.
The present invention relies on immunology, immunochemistry general principle and retention analysis technological means, design, synthesized micromolecule mesh Mark analyte haptens, and and carrier protein couplet, prepare effective artificial antigen.Preparation method of the present invention is simple and feasible, cost Relatively low, yield of hapten is higher.The amantadine artificial antigen of the present invention, can be created for amantadine by immune animal Specific antibody, the amantadine residual in quickly detection food.
Accompanying drawing explanation
Fig. 1 is amantadine haptenic Mass Spectrometer Method result.
Fig. 2 is the MALDI-TOF-MAS figure of BSA.
Fig. 3 is the MALDI-TOF-MAS figure of amantadine antigen " amantadine haptens+BSA ".
Fig. 4 is amantadine enzyme-linked immunologic detecting kit calibration curve.
Detailed description of the invention
Below example facilitates a better understanding of the present invention, but does not limit the present invention.Experiment in following embodiment Method, if no special instructions, is conventional method.Test material used in following embodiment, if no special instructions, is certainly Routine biochemistry reagent shop is commercially available.
The haptenic preparation of embodiment 1, amantadine
One, the haptenic preparation of amantadine
0.94g adamantanamine hydrochloride is dissolved in 30ml anhydrous pyridine, adds maleic anhydride 0.49g, after dissolving, adds 4-diformazan ammonia Yl pyridines 10mg, 70 DEG C of back flow reaction 3h, rotation is evaporated off pyridine, adds deionized water 10ml, and pH5.0 adjusted by glacial acetic acid, separates out a large amount of Precipitation, filters, water washing and precipitating, dried haptens.
Two, the haptenic qualification of amantadine
Products obtained therefrom is carried out Mass Spectrometric Identification ,-MS:M-1=248.7(Fig. 1).
Result shows its chemical structural formula as shown in Equation 1, is amantadine haptens.
Formula 1.
Embodiment 2, the preparation of amantadine artificial antigen and qualification
One, the synthesis of amantadine immunizing antigen
Weigh 5.57mg haptens and be dissolved in 1ml DMF, add EDC 4.3mg, NHS 5.2mg, reaction 2h is stirred at room temperature; 50mg BSA is dissolved in 5ml 0.1M sodium bicarbonate buffer liquid, is added dropwise in protein solution by above-mentioned pharmacological activation, was stirred at room temperature At night, PBS 4 degree dialyses 72 hours, and period changes dislysate 6 times.Dislysate is aseptically crossed the filter membrane in 0.22 μm aperture, Being sub-packed in ampere bottle ,-20 degree preserve.
Coating antigen is prepared with method.
Two, the qualification of amantadine artificial antigen
Immunogene MALDI-TOF-MS qualification result display coupling ratio is: R=(AMD-MH-BSA)-(BSA)/249.7= (73828.009-67485.901)/249.7=25.40(Fig. 2 and Fig. 3).I.e. in immunogene, described amantadine haptens (formula I) mol ratio with bovine serum albumin(BSA) (BSA) coupling is 25.40:1.
Embodiment 3, the preparation of enzyme mark monoclonal antibody and specificity identification
One, the preparation of amantadine monoclonal antibody
1, by the above-mentioned immunogene prepared by 100 μ g/ only, with physiological saline solution immunogene and Freund's complete adjuvant equal-volume Mixing, the female mouse of neck dorsal sc injection immunity 6 ~ 8 week old Balb/c, after initial immunity the 7th, 14,28 days with immunogene and Freund Freund's incomplete adjuvant equal-volume mixes, each supplementary immunization once, merge first 3 days with immune complex 100 μ g/ only, be not added with Freund assistant Agent supplementary immunization again is once.
2, carry out according to a conventional method, take the splenocyte of immune mouse and be in the murine myeloma cell of exponential phase (SP2/0) mixing, the fusion agent (PEG4000) being then slowly added to preheating in 45s merges, and suspends with HAT culture medium Uniformly, add appropriate feeder cells, be incubated at 96 well culture plates, in 37 DEG C, 5%CO2Incubator is cultivated, uses after 5 days HT culture medium partly changes liquid, entirely changes liquid when 9 days.
3, after cell merges, when cell grows to the 1/4 of culture hole area, use substep screening method screening hybridoma thin Born of the same parents.Primary election uses indirect ELISA method, and with envelope antigen, (with square formation method conventional titration, it is most preferably coated concentration and the positive in advance Serum dilution) coated elisa plate, add measured hole culture supernatant, hatch, after cleaning, add sheep anti-mouse igg-HRP and IgM- HRP, OPD carry out chromogenic reaction.The positive Kong Zaiyong indirect competitive ELISA method screening filtered out, first by cell conditioned medium and 100 The amantadine equal-volume mixing of μ g/mL, 37 DEG C of water-bath effect 30min, it is then added in the ELISA Plate being coated.Use simultaneously PBS replaces amantadine and compares, and remaining step is ibid.If the OD after amantadine blocks450Nm value drops to control wells Less than 50%, then it is judged to the positive, is all positive hole through 2 ~ 3 detections, carries out subcloning with limiting dilution assay immediately.
4,2 ~ 3 subclones are built the hybridoma after strain and expands cultivation, collect supernatant indirect ELISA and measure effect Valency, frozen;And only take 8 ~ 10 week old Balb/c mouse peritoneal injecting fluid paraffin 0.5mL/, lumbar injection hybridoma after 7 ~ 10 days Cell 1 ~ 2 × 106/ only, and extract mouse ascites, centrifuging and taking supernatant after 7 ~ 10 days, measure titer, and frozen standby.
Two, the preparation of enzyme labelled antibody
1, weigh horseradish peroxidase (HRP) 2 mg to be dissolved in 0.5 mL water, add 0.5 mL 0.06 mol/L NaIO4 Solution, 4 DEG C of lucifuge effect 30 min;
2, the ethylene glycol 0.5mL of 160 mmol/L, room temperature effect 30 min are added;
3, add amantadine monoclonal antibody 2 mg of step one preparation, in the bag filter that after mixing, loading processed, put 1000 mL's Dialysing in 0.05 mmol/L sodium carbonate buffer, 4 DEG C overnight;
4, during dislysate is drawn to the centrifuge tube of 10 mL, the NaBH of 0.25mL 5g/L is added4Solution, mixes rearmounted 4 DEG C of 2 h;
5, adding isopyknic saturated ammonium sulfate solution, after 4 DEG C of effect 30 min, at 4 DEG C, 3000 r/min are centrifuged 25 min, abandon Supernatant;
6, precipitation is dissolved in the PBS of 1.5 mL0.02 mol/L pH 7.4, sucks in bag filter, at 0.02mol/L pH 7.4 PBS, 4 DEG C overnight (PBS is changed 3 times in midway);
7, by during in bag filter, liquid is drawn to microcentrifugal tube, at 4 DEG C, 10000r/min is centrifuged 30min, by supernatant sucking-off, adds Equivalent glycerine, mixing ,-20 DEG C save backup.
Three, the mensuration of enzyme mark amantadine antibody titer
Amantadine standard items are purchased from Sigma company.
The working concentration of the monoclonal antibody of amantadine envelope antigen and step one preparation, amantadine is determined by square formation titration The working concentration of envelope antigen is 2.5 μ g/mL, and the working concentration of monoclonal antibody is 1:60000.
Doing experimental solutions with the amantadine standard solution of variable concentrations, its concentration is as follows: 0,0.5,1.5,4.5, 13.5、40.5μg/L.Use 8 groups of parallel tests (n=8).
Competitive ELISA method:
(1) with the antigen coated ELISA Plate of amantadine of above-mentioned working concentration, by amantadine standard items experimental solutions and enzyme mark Antibody-solutions is simultaneously introduced in ELISA Plate micropore, and arrange blank well (changing the antibody-solutions of interpolation into high purity water, other one simultaneously Cause) and negative control hole (standard items experimental solutions PBS solution being replaced, other is consistent), 25 DEG C of light protected environment react 30min;
(2) pour out liquid in hole, wash 3 ~ 5 times with cleaning solution, ELISA Plate is upside down on blotting paper and pats dry;
(3) add substrate chromophoric solution in ELISA Plate micropore, 25 DEG C of light protected environment react 15min;
(4) add stop buffer, mixing of vibrating gently, at wavelength 450nm, measure OD value with ELIASA.
With OD value as ordinate, with the log10 value of amantadine experimental solutions concentration as abscissa, draw semilog standard Curve map.Calibration curve has complete reverse-s shape shape, and has upper mounting plate and lower platform, the parallel determination number of times 8 of calibration curve Secondary, experimental repeatability is good, and relative standard deviation (coefficient of variation) is all within 10%.
Half amount of suppression (IC is drawn according to calibration curve50), determine detection sensitivity.
Inhibiting rate is with being calculated as follows:
In formula: ODmax: for being not added with light absorption value during standard items, ODx is light absorption value during standard items x, and ODmin is blank The light absorption value in hole.
Being calculated amantadine antibody half amount of suppression (IC50) in buffer solution by above-mentioned formula is 1.3 μ g/L.
Embodiment 4, the enzyme linked immunological kit of detection amantadine and preparation thereof
One, enzyme linked immunological kit is made up of following substances:
1, the haptenic ELISA Plate of amantadine it is coated;
2, enzyme mark amantadine antibody working solution: enzyme labelled antibody solution described in embodiment 3;
3, amantadine standard items: amantadine standard solution concentration is respectively 0,0.5,1.5,4.5,13.5,40.5 μ g/L;
4, substrate nitrite ion: be made up of A liquid and B liquid, A liquid is the aqueous solution of 2% urea peroxide, and B liquid is 1% tetramethyl benzidine (TMB) the aqueous solution;
5, stop buffer: 0.2M aqueous sulfuric acid;
6, concentrated cleaning solution: every 1 liter of described cleaning solution is prepared as follows and obtained: by 10mL Tween-20,5g nitrine Change sodium and the mixing of 990mL phosphate buffer, obtain described cleaning solution;The concentration of described phosphate buffer is 0.01M pH value It is 7.4;
Two, ELISA Plate and the preparation thereof of AMD-OVA it are coated with
It is coated the polystyrene ELISA Plate of AMD-OVA: with the carbonate solution of 0.05M by antigen diluent to 2.5 μ g/mL, be coated 96 hole polystyrene ELISA Plates, every hole 100 μ L, 37 DEG C of incubation 2h, incline and be coated liquid, wash 3 times with cleaning solution, each 10s, Pat dry, in every hole, then add 150 μ L confining liquids, 37 DEG C of incubation 2h, liquid in hole of inclining, seal by aluminium film vacuum after drying Preserve.
It is coated buffer solution: the sodium carbonate buffer of pH9.6,0.05mo1/L;
Confining liquid: every 1 liter of confining liquid is prepared as follows: by 5mL horse serum, 1g sodium azide, the mixing of 30g casein, Dissolve with phosphate buffer and be settled to 1000mL, obtaining confining liquid;Wherein, the concentration of phosphate buffer is 0.02M, PH value is 7.2.
Three, kit test method
(1) sample pre-treatments
Chicken, pork, duck, egg (coefficient of dilution: 2)
1, the sample after 2 ± 0.01 g homogeneous is accurately weighed in 50 mL centrifuge tubes;
2,1 mL 1% acetic acid solution, 7mL acetonitrile, violent whirling motion 3 min are added;
3, under room temperature (25 ± 2 DEG C), 4000 g are centrifuged 5min;
4,2 mL supernatants are taken in clean centrifuge tube;
5,60-70 DEG C of water-bath nitrogen dries up;
6,0.5mL sample diluting liquid, violent whirling motion 30 s are added;
7, take 200 L of supernatant liquid in new centrifuge tube, add 200 L sample diluting liquids, violent whirling motion 30 s;
8, take 50 L to detect.
(2) detect with kit
1, the making of calibration curve
In the ELISA Plate micropore be coated with AMD-OVA, add amantadine standard solution 50 μ L, be subsequently adding enzyme labelled antibody Working solution 50 μ L/ hole, vibration mixes gently, with reacting 30min in the rearmounted 25 DEG C of light protected environment of cover plate membrane cover plate.Carefully take off Uncap plate film, liquid in hole is dried, add wash operating solution 250mL/ hole, fully wash 4 ~ 5 times, every minor tick 10s, sprinkle Cleaning solution in plate hole, pats dry with blotting paper.Addition substrate A liquid 50 μ L/ hole, substrate B liquid 50 μ L/ hole, mixing of vibrating gently, 25 DEG C Insulating box lucifuge colour developing 15min, every hole adds stop buffer 50 μ L, mixing of vibrating gently, with ELIASA, measures every hole absorbance Value.
With the absorbance values of the standard solution of each concentration divided by the extinction of first standard solution (0 standard) Angle value (B0) it is multiplied by 100% again, obtain percentage absorbance.With the semilog value of amantadine standard concentration (μ g/L) as X Axle, percentage absorbance is Y-axis, draws canonical plotting.The calibration curve obtained is as shown in Figure 4.
Percentage absorbance (%)=(B/B0) × 100%
2, the mensuration of Gold Samples firm alkanamine concentration
With the absorbance values (B) of each test sample solution divided by the absorbance of first standard solution (0 standard) (B0) it is multiplied by 100% again, obtain percentage absorbance.The percentage absorbance of each test sample solution corresponding, then can be from Reading the absorbance of test sample solution on calibration curve, the concentration value further according to standard solution converses in sample solution The residual quantity of amantadine, is multiplied by the extension rate of each sample pretreatment process the most again, can calculate the firm alkane of Gold Samples The concentration of amine.
Four, kit Detection results is evaluated
(1) degree of accuracy and precision test
To without the chicken meat sample of amantadine adds amantadine standard items, make amantadine standard items ends in the sample Concentration is respectively 1,2,4 μ g/L;Sample after adding carries out pre-treatment according to method described in experiment three respectively, is detected Sample solution.
From the kit of three different batches, 3 kits of each extraction detect, institute in detection method such as experiment three Stating, each experiment is repeated 5 times, and calculates the coefficient of variation respectively.Result is shown in Table 1 respectively.
Table 1 degree of accuracy and Precision test result
Variation within batch coefficient: with the coefficient of variation of each parallel samples in once measuring.
Interassay coefficient of variation: same sample, in the coefficient of variation of different batches measurement result, takes its mean value.
Result shows: the average TIANZHU XINGNAO Capsul of chicken meat sample 86.9 ~ 97.3%, variation within batch coefficient 6.4 ~ 13.6%, interassay coefficient of variation is at 9.8 ~ 10.1 %.
(2) kit storage life
Kit preservation condition is 2 ~ 8 DEG C, and through the mensuration of 15 months, the maximum absorbance value (0 standard) of kit, 50% pressed down Concentration processed, amantadine add practical measurement value all within normal range (NR).During transport and using, have anon-normal Often preservation condition occurs, places 9 days, be accelerated senile experiment under conditions of being preserved at 37 DEG C by kit, and result shows this The indices of kit complies fully with requirement.Occur in view of kit freezing situation, kit is put into-20 DEG C of refrigerators cold Freezing 9 days, measurement result also indicates that kit indices is the most normal.Can show that kit can be at 2 ~ 8 DEG C from result above At least can preserve more than 12 months.
(3) cross reacting rate test
Select to carry out cross reaction test, by the calibration curve of various medicines with AMD structure or intimate other drug Respectively obtain its 50% inhibition concentration.The kit cross reacting rate to other analog is calculated with following formula.Friendship with other drug Fork reactivity is the least, illustrates that amantadine enzyme-linked immunologic detecting kit is the best to the detection of amantadine.Result is shown in Table 2.
Table 2 amantadine kit cross reacting rate
Result of the test shows, kit of the present invention to the cross reacting rate of amantadine be 100%, Amoxicillin, Cloxacillin, OXA, the cross reacting rate of Ceftiofur are respectively less than 1%, so the best to amantadine of kit, the i.e. present invention Kit can detect amantadine.

Claims (10)

1. an amantadine haptens, for product shown in formula 1:
Formula 1.
The preparation method of product shown in formula 1 the most according to claim 1, comprises the steps: 0.94g amantadine hydrochloric acid Salt is dissolved in 30ml anhydrous pyridine, adds maleic anhydride 0.49g, after dissolving, adds DMAP 10mg, and 70 DEG C of backflows are anti- Answering 3h, rotation that pyridine is evaporated off, add deionized water 10ml, pH5.0 adjusted by glacial acetic acid, separates out a large amount of precipitation, filters, water washing and precipitating, dry Haptens is obtained after dry.
3. an amantadine antigen, is conjugate product shown in formula 1 and carrier protein couplet obtained.
Amantadine antigen the most according to claim 3, it is characterised in that described carrier protein includes bovine serum albumin In vain, ovalbumin, human serum albumins, mouse serum albumin, thyroprotein or hemocyanin.
5. the preparation method of amantadine antigen described in claim 3, comprises the steps: that weighing 5.57mg haptens is dissolved in 1ml DMF, adds EDC 4.3mg, NHS 5.2mg, and reaction 2h is stirred at room temperature;50mg BSA is dissolved in 5ml 0.1M sodium acid carbonate and delays Rushing liquid, be added dropwise in protein solution by above-mentioned pharmacological activation, stirred overnight at room temperature, PBS 4 DEG C dialyses 72 hours, and period changes Dislysate 6 times;Dislysate is aseptically crossed the filter membrane in 0.22 μm aperture, is sub-packed in ampere bottle ,-20 DEG C of preservations, with Method prepares coating antigen.
6. amantadine antigen application in preparing amantadine specific antibody described in claim 3.
7. the specific antibody that amantadine antigen described in application claim 3 prepares.
8. antibody described in amantadine antigen, claim 7 described in product, claim 3 described in claim 1 is at detection Buddha's warrior attendant Application in alkanamine.
9. specific antibody described in amantadine antigen, claim 7 described in product, claim 3 described in application claim 1 The enzyme-linked immunologic detecting kit prepared.
10. enzyme-linked immunologic detecting kit described in claim 9, it is characterised in that it includes: be coated with amantadine antigen ELISA Plate, enzyme labelled antibody working solution, amantadine serial standards, substrate nitrite ion, stop buffer, concentration redissolution liquid, concentration are washed Wash liquid.
CN201610280030.1A 2016-04-29 2016-04-29 Amantadine artificial antigen and preparation method and application thereof Pending CN105906522A (en)

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CN106565846A (en) * 2016-10-13 2017-04-19 华中农业大学 Monoclonal antibody and enzyme-linked immunosorbent assay kit for detecting amantadine and rimantadine
CN106565846B (en) * 2016-10-13 2019-11-01 华中农业大学 For detecting the monoclonal antibody and enzyme linked immunological kit of amantadine and Rimantadine
CN108152499A (en) * 2017-12-06 2018-06-12 华南农业大学 A kind of antigen of amantadine, antibody and its enzyme-linked immunologic detecting kit
CN111533665A (en) * 2020-05-29 2020-08-14 深圳市金阅科技有限责任公司 Rimantadine hapten, rimantadine complete antigen, preparation method thereof and test strip

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