CN100570323C - A kind of ractopamine column and its production and use - Google Patents
A kind of ractopamine column and its production and use Download PDFInfo
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- CN100570323C CN100570323C CNB2006101038980A CN200610103898A CN100570323C CN 100570323 C CN100570323 C CN 100570323C CN B2006101038980 A CNB2006101038980 A CN B2006101038980A CN 200610103898 A CN200610103898 A CN 200610103898A CN 100570323 C CN100570323 C CN 100570323C
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Abstract
The invention discloses a kind of extraction β 2-excitant (Ractopamine) immune affinity column.Immune affinity column provided by the present invention is used for extracting the forbidden drug β 2-excitant (Ractopamine) in feed and the livestock products, comprises that β 2-excitant (Ractopamine) specific antibody, coupling have plastic column, sample-loading buffer, leacheate and the eluent of β 2-excitant (Ractopamine) specific antibody Sepharose4B, loading affinitive material.β 2-excitant of the present invention (Ractopamine) immune affinity column is easy to use, but has β 2-excitant (Ractopamine) residual in high specific rapid extraction feed and the livestock products.
Description
Technical field
The invention belongs to forbidden drug and livestock products veterinary drug residue check and analysis technical field in the feed.Particularly, the present invention relates to a kind of immune affinity chromatographic column and its production and use of β 2-excitant-Ractopamine.
Background of invention
Ractopamine (Ractopamine) belongs to β 2-excitant, is a kind of phenyl ethyl amine medicine, and its substitute as " clenbuterol hydrochloride " illegally is used for herding at present and produces.
When Ractopamine high residue during in viscera tissue, toxic reaction appears, symptom shows as Skeletal Muscle Contraction to be increased, destroy the fusion between quick muscle fiber and the slow switch fibers, cause muscular tremor, four limbs and muscle are particularly evident, and other toxicity symptoms comprise tachycardia, arrhythmia cordis, stomachache, myalgia, feel sick and dizzy etc. the serious harm health.Therefore China bans use of, and China Ministry of Agriculture No. 176 bulletin regulation Ractopamine is the medicine of forbidding using in feed and animal drinking water.But because its economic benefit is obvious, so in the herding fish production, still have illegal use.Given this, Rct opamine residue in the animal food being carried out the strictness detection is very important
But at present used conclusive evidence method is to the sample requirement height, and complex pretreatment has limited the efficient of monitoring.In the real work, because the complicated component of biological specimen, and most of sampling amount is seldom, and this specificity and sensitivity to analytical approach has proposed very high requirement.Therefore, be necessary to set up a kind of swift to operate, and have very high specificity and sensitivity of method.
The immunoaffinity chromatography technology be a kind of be the analytical approach that immune response and chromatographic technique combine, on purifying substances an efficient height, purifying substances purity height, technology fast, can make immunoassay technology (as ELISA etc.) and chromatographic technique obtain complementation aspect specificity, separating power, speed and the sensitivity, avoid the deficiency of the direct working sample of immunoassay
Immune affinity column is the technology that eighties of last century is applied in analysis field the nineties, but the Ractopamine that extracts in the sample with immune affinity column does not appear in the newspapers.Therefore, the inventor has succeeded in developing a kind of have high specific and sensitivity and ractopamine column swift to operate by a large amount of tests.
Summary of the invention
The object of the invention provides immune affinity column of a kind of rapid extraction β 2-excitant-Ractopamine and its production and use.
Principle of the present invention is according to the specific reaction of antigen-antibody and the characteristic that can dissociate, extracts the β 2-excitant Rct opamine residue in feed and the livestock products with β 2-excitant-Ractopamine antibody.
On the one hand, the invention provides a kind of method for preparing ractopamine column, this method comprises the following steps: that this method comprises the following steps:
A) the Ractopamine specific antibody is mixed with the Sepherose4B glue of cyanogen bromide-activated, stir with rotary drum, coupling is spent the night; Sintered glass filter suction filtration coupling glue, the PBS wash-out is binding antibody not, each 5 milliliters, washes 4 times; Seal not binding site with the 1M monoethanolamine, add excess ethyl alcohol amine and hatched 2.5 hours, the suction filtration monoethanolamine is taken out with coupling buffer and to be washed, and then uses HAC, the alternately washing totally 4 times of Tris-Hcl damping fluid, each 5ml;
B) mucilage binding after the coupling is gone in the affinity chromatography plastic column, dress is annotated the 1ml/ post, slightly firmly compresses, and promptly gets described ractopamine column.
In a preferred embodiment of the invention, preparation method's concrete operations of described ractopamine column are:
Get Sepherose 4B (100-120 order) weight in wet base 4g (6ml), use 0.1M pH9.5Na
2CO
3Solution soaked 4 hours.Take by weighing cyanogen bromide 0.8g in the ventilating kitchen and be dissolved in 1.2ml Na
2CO
3(2g solution 3ml damping fluid), electromagnetic agitation 10 minutes.Under the ice bath electromagnetic agitation, cyanogen bromide solution is added among the Sepherose4B, finish in 2 minutes, drip 2N NaOH, make the pH value remain on 11, ice bath reaction 10 minutes.
Reacted Sepherose4B is poured in the Buchner funnel, with the Na of precooling
2CO
3Wash in 2-3 minute for solution 4-10 ℃ and finish, take out the liquid of washing 25 times of volumes and prepare crosslinking protein.
Under 4 ℃, antibody (polyclonal antibody or the monoclonal antibody) solution that embodiment 1 is prepared mixes with the Sepherose4B glue of cyanogen bromide-activated, stirs with rotary drum, and coupling reaction is spent the night.
Sintered glass filter suction filtration coupling glue, the PBS wash-out is binding antibody not, each 5 milliliters, washes 4 times.Measure antibody content respectively.
(ethanolamine) seals not binding site with the 1M monoethanolamine, adds excess ethyl alcohol amine and hatches 2.5 hours.The suction filtration monoethanolamine is taken out with coupling buffer and to be washed.And then with alternately HAC, the Tris-Hcl damping fluid is washed 4 times, each 5ml.
At last, the mucilage binding after the coupling is gone in the affinity chromatography plastic column, dress is annotated the 1ml/ post, slightly firmly compresses, and promptly obtains ractopamine column of the present invention.
On the other hand, the invention provides a kind of ractopamine column, this immune affinity column comprises that coupling has the Sepharose4B and the plastic column that loads this affinitive material of Ractopamine specific antibody.
Wherein said Ractopamine specific antibody is monoclonal antibody or polyclonal antibody.Ractopamine specific antibody of the present invention prepares by following method: 1) prepare Ractopamine and carrier protein couplet thing by the haptenic immunization method of micromolecule; And, 2) with this conjugate as immunogen immune animal (for example, rabbit), separation of serum, purifying obtains polyclonal antibody; Perhaps 3) immune mouse obtains monoclonal antibody by hybridoma technology.
Wherein said carrier protein includes but not limited to, for example the blue albumen of bovine serum albumin(BSA) (BSA), human serum albumins, ovalbumin and key hole copper (keyhole limpet hemocyanin, KLH).The conjugate of described Ractopamine and carrier protein adopts diazotising method or multi-anhydride method and the coupling of mixed anhydride method integrated processes.
The preservation condition of immune affinity column of the present invention is: and the phosphate buffer of 0.01% merthiolate (PBS, 0.01mol/L, pH7.4), 4 ℃ of preservations.
In addition, for making things convenient for rig-site utilization, immune affinity column of the present invention can further include sample-loading buffer, leacheate and eluent.
In a preferred embodiment of the invention, described sample-loading buffer be PBS (0.02MPB-0.05MNaCl, PH7.2), described leacheate be PBST (0.02MPB-0.05MNaCl-0.2%Tween20, PH7.2); Described affinity post eluent is methyl alcohol/1M acetate (V/V is 97/3).
On the other hand, the invention provides a kind of using method of ractopamine column, this method comprises:
A) immune affinity column and sample-loading buffer, leacheate and the eluent of 4 ℃ of preservations of taking-up are back to room temperature, with the abundant drip washing affinity column of sample-loading buffer, remove and store albumen and the antiseptic that contains among the Buffer;
B) sample to be checked that will handle well be diluted to sample-loading buffer volume required, last sample, after the sample solution drip-dry, leacheate drip washing cylinder discards, rubber pipette bulb dries up solution in the post;
C) with the Ractopamine of eluent wash-out specificity combination, collect eluent, preserve to be checked.
The present invention uses feed, pork and live pig urine to carry out recovery experiment, and the result shows the recovery of ractopamine column between 80%-110%, and the recovery has reached the recovery requirement of analytical approach.
Therefore, on the other hand, the invention provides the purposes of described ractopamine column Rct opamine residue in extracting animal derived product and animal metabolism thing.
In the specific embodiments, described animal derived product is a pork.
In another specific embodiments, described animal metabolism thing is a pig urine.
It is in order further to understand the present invention better that following embodiment is provided, and never content of the present invention and protection domain is constituted any restriction.
Embodiment
The preparation of embodiment 1 anti-Ractopamine antibody
1.1 anti-Ractopamine Polyclonal Antibody Preparation
With reference to conjugate synthetic method in the prior art (Shelver W L, et al., Journal of Immunoassay, 2000,21 (1): 1-23; Hong X Z, et al, 1993:3-4,11-14; Brunswick D J, et al., Life Sciences, 1978,22:137-146), synthetic Ractopamine-carrier protein couplet thing.Concrete operations are as follows, take by weighing hydrochloric acid Ractopamine 68mg (about 0.2mmol), join 4ml and contain in the pyridine solution of 22.8mg (about 0.2mmol) glutaric anhydride, stirring at room reaction 22 hours.After reaction was finished, nitrogen dried up pyridine.With 8ml solvent (DMF and 1, the 4-dioxan mixes at 1: 1) dissolving Rac-glutaric anhydride semialdehyde, add 52.4 μ l (about 0.2mmol) tri-n-butylamine, stir 10min in the ice, add isobutyl chlorocarbonate 28.8 μ l (about 0.2mmol), change stirring at room reaction 1 hour over to.
The hydrochloric acid Ractopamine solution of activation dropwise joins in 10ml, the 0.1M pH 8.5 ice-cold carrier protein dobell's solutions, adds in 1 hour, and the stirring at room reaction is spent the night.Carrier consumption: BSA:50mg, KLH:100mg.Conjugate is crossed the SephadexG-25M chromatographic column and is purified.Measure carrier concn as conjugate concentration with ultraviolet absorption method.The conjugate of purifying adds equivalent glycerine-20 ℃ preservation.
Select 5 of healthy, anosis, male, the purebred New Zealand white rabbit of body weight 1.5kg.Head exempts from syringe the method for taking out to be mixed into water in oil emulsion with Freund's complete adjuvant and immunogene by 1: 1, every rabbit 0.25mg immunogene, and the subcutaneous multi-point injection in back, the injected dose multi-point average distributes.Every two all booster immunizations once, use incomplete Freund, dosage, method are exempted from head.From immunity for the third time, back 10 days of immunity, auricular vein is got blood 1ml, and room temperature is solidified behind the 2h 4 ℃ and is spent the night, and the 8000r/min separation of serum is in order to the detection antibody titer.Tire when no longer raising, do not add back 7 days of adjuvant last immunity (the 8th time), the arteria carotis bloodletting, isolate anti-whole serum, the saturated ammonium sulfate solution precipitation with 40% gets thick polyclonal antibody, separate with the DE-52 ion-exchange chromatography then and remove other haemocyanins, get pure polyclonal antibody.
Measure by indirect ELISA and indirect competitive ELISA, the result shows that the polyclonal antibody that the present invention prepares has very high tiring and good specificity.
1.2 anti-Ractopamine MONOCLONAL ANTIBODIES SPECIFIC FOR
1.2.1 the diazotising of Ractopamine
In a test tube, get Clenizole Hydrochloride and be dissolved in the deionized water, with 1M hydrochloric acid pH is transferred to 1.5, under dark 4 ℃ of conditions, slowly drip the deionized water of sodium nitrite and stirring constantly.Reaction mixture was placed 30 minutes.
1.2.2 the coupling of diazotizing clenbuterol and HAS
To slowly join in the above-mentioned solution among the 0.1mol/L PB (pH 7.5) of BSA, the sodium hydroxide solution with 1M in the course of reaction makes pH keep 7.5, reacts back 4 ℃ of placements and spends the night.
The further chromatographic column of SephadexG-25M gel is removed micromolecule
1.2.3 immune animal and Fusion of Cells to 8 ages in week female Balb/c mouse (body weight 18～22g), first immunisation is with 100 μ gCL-BSA and equivalent Fu Shi Freund's complete adjuvant mixing, lumbar injection.First is got spleen and merges with 10 μ gCL-BSA intrasplenic injections after 3 weeks after 3 days.Second batch use 100 μ gCL-BSA and equivalent freund 's incomplete adjuvant mixing again after, the lumbar injection supplementary immunization, the spleen fusion is got according to a conventional method with 10 μ g CL-BSA intrasplenic injections in 3 week backs after 3 days.When microscopy hybridoma clonal growth reaches 1/3～1/2 visual field, get supernatant and screen.
1.2.4 hybridoma screening and antibody test are envelope antigen with CL-BSA, with the cell hole of the anti-CL antibody of indirect noncompetitive ELISA method screening secretion, with indirect competition inhibition ELISA method conclusive evidence.With the positive contrast of the serum of immune mouse, with the negative contrast of the supernatant of Sp2/0 cellular incubation, the criterion in positive cell hole is (A
Test-A
Blank)/(A
Contrast-A
Empty In vain) 〉=2.1.
1.2.5 hybridoma cloning adopts accurate counting dilution method in the culture flask, the positive colony cell is blown even, gets a droplet to culture flask, accurate counting number of cells under the inverted microscope, dilution is 70/ml, gets 20 times of 1ml dilutions again, and inoculation goes in 96 well culture plates to carry out subclone.Till the culture supernatant in all cells hole all is positive.
1.2.6 the production of monoclonal antibody is adopted in the animal body and is induced monoclonal antibody method.The hybridoma that piping and druming is cultivated, the centrifugal 10min of 1000r/min abandons supernatant, with the hybridoma mixing that suspends, and cell number is transferred to 2 * 10 with physiological saline
6/ ml, every Balb/c mouse peritoneal injection 0.5ml hybridoma, and, collect ascites after 10～14 days simultaneously in offside lumbar injection 0.5ml norphytane and incomplete freund adjuvant potpourri (mixing at 1: 1).
1.2.7 Purification of Monoclonal Antibodies adopts ammonium sulfate precipitation method that ascites is carried out purifying or purifies with ion exchange process.
The preparation of embodiment 2 ractopamine columns
Present embodiment is the preparation of ractopamine column
Get Sepherose 4B (100-120 order) weight in wet base 4g (6ml), use 0.1M pH9.5Na
2CO
3Solution soaked 4 hours.Take by weighing cyanogen bromide 0.8g in the ventilating kitchen and be dissolved in 1.2ml Na
2CO
3(2g solution 3ml damping fluid), electromagnetic agitation 10 minutes.Under the ice bath electromagnetic agitation, cyanogen bromide solution is added among the Sepherose4B, finish in 2 minutes, drip 2N NaOH, make the pH value remain on 11, ice bath reaction 10 minutes.
Reacted Sepherose4B is poured in the Buchner funnel, with the Na of precooling
2CO
3Wash in 2-3 minute for solution 4-10 ℃ and finish, take out the liquid of washing 25 times of volumes and prepare crosslinking protein.
Under 4 ℃, antibody (polyclonal antibody or the monoclonal antibody) solution that embodiment 1 is prepared mixes with the Sepherose4B glue of cyanogen bromide-activated, stirs with rotary drum, and coupling reaction is spent the night.
Sintered glass filter suction filtration coupling glue, the PBS wash-out is binding antibody not, each 5 milliliters, washes 4 times.Measure antibody content respectively.
(ethanolamine) seals not binding site with the 1M monoethanolamine, adds excess ethyl alcohol amine and hatches 2.5 hours.The suction filtration monoethanolamine is taken out with coupling buffer and to be washed.And then with alternately HAC, the Tris-Hcl damping fluid is washed 4 times, each 5ml.
At last, the mucilage binding after the coupling is gone in the affinity chromatography plastic column, the dress post, the 1ml/ post slightly firmly compresses, and promptly gets described ractopamine column.
Preservation condition: the phosphate buffer of 0.01% merthiolate (PBS, 0.01mol/L, pH7.4), 4 ℃ of preservations.
Embodiment 3
Residual with Ractopamine immunity in the ractopamine column extraction feed of embodiment 2 described method preparations.
Get 6 parts in blank (being defined as the Ractopamine feminine gender in advance after testing) feed, every part of 5g; Get 3 parts, every part adds Ractopamine, and making it add concentration is 20mg/kg, other 3 parts as blank.
Above-mentioned feed sample with 80% methyl alcohol extracting, is got a certain amount of extract nitrogen and dried up back with sample-loading buffer dissolving, affinity post in the preparation.
The immune affinity column that will take out from 4 ℃ of refrigerators and all reagent room temperatures were placed 1 hour, with the abundant drip washing affinity column of sample-loading buffer 5ml * 6 times, removed and stored albumen and the antiseptic that contains among the Buffer.
With blank and each 5ml of interpolation sample of feed to be checked, sample is 5 times in the circulation, (access the sample effluent and go up this affinity column once more).After the sample solution drip-dry, with leacheate drip washing 5 times, each 1ml, rubber pipette bulb dries up solution in the post.
Add the 1ml eluent earlier and soaked the affinity post 10 minutes, dry up solution in the post with rubber pipette bulb then; Add the 1ml eluent again and soaked 3 minutes, divide wash-out 4 times with the 2ml eluent at last, promptly each 0.5ml.The shared eluent 4ml of whole elution process.
GC/MS (NY/XQ421-2003) standard method detects Ractopamine eluent content.
The Ractopamine content of measuring feed interpolation sample is between the 90-110ng, because the column capacity of this affinity post is 110ng, the result shows that this affinity post satisfies the extraction requirement.
Embodiment 4
Get 12 parts of feminine gender (being defined as the Ractopamine feminine gender in advance after testing) porks, per 5 parts of 5g; Earlier with after the pork homogenate, get 9 parts, divide 3 groups, every group is added Ractopamine concentration and is respectively 50ug/kg, 80ug/kg, 100ug/kg as positive, other 3 parts as negative control.
With above-mentioned pork sample 10ml80% dissolve with methanol, centrifuging and taking supernatant, nitrogen dry up the back and dissolve affinity post in the preparation with sample-loading buffer.
The immune affinity column that will take out from 4 ℃ of refrigerators and all reagent room temperatures were placed 1 hour, with the abundant drip washing affinity column of sample-loading buffer 5ml * 6 times, removed and stored albumen and the antiseptic that contains among the Buffer.
With negative pork extract to be checked and each 5ml of interpolation sample extracting solution, sample is 5 times in the circulation, (access the sample effluent and go up this affinity column once more).After the sample solution drip-dry, with leacheate drip washing 5 times, each 1ml, rubber pipette bulb dries up solution in the post.
Add the 1ml eluent earlier and soaked the affinity post 10 minutes, dry up solution in the post with rubber pipette bulb then; Add the 1ml eluent again and soaked 3 minutes, divide wash-out 4 times with the 2ml eluent at last, promptly each 0.5ml.The shared eluent 4ml of whole elution process.
GC/MS (NY/XQ421-2003) standard method detects Ractopamine eluent content.
The average recovery rate of measuring pork interpolation sample is between the 90-110%, shows that this method satisfies the analytical approach requirement.
Embodiment 5
Residual with Ractopamine immunity in the ractopamine column extraction live pig urine sample of embodiment 2 described method preparations.
With 12 parts of known blank (being defined as the Ractopamine feminine gender in advance after testing) urine samples, per 5 parts of 10ml get wherein 9 parts, divide 3 groups, every group is added Ractopamine concentration and is respectively 1ug/kg, 5ug/kg, 10ug/kg as positive, other 3 parts as negative control.With centrifugal 20 minutes of above-mentioned sample 4000rpm, each sample was got the 3ml supernatant, and it is 7.1～7.3 standby to transfer pH to cause with 1M NaOH.With 10 times of the urine sample dilution of sample-loading buffer after with above-mentioned processing, therefrom respectively get 5ml, prepared post.
The immune affinity column that will take out from 4 ℃ of refrigerators and all reagent room temperatures were placed 1 hour, with the abundant drip washing affinity column of sample-loading buffer 5ml * 6 times, removed and stored albumen and the antiseptic that contains among the Buffer.
With each 5ml of urine sample that handles well, sample is 5 times in the circulation, (access the sample effluent and go up this affinity column once more).After the sample solution drip-dry, leacheate is washed 5 times, each 1ml, and rubber pipette bulb dries up solution in the post.
Add the 1ml eluent earlier and soaked the affinity post 10 minutes, dry up solution in the post with rubber pipette bulb then; Add the 1ml eluent again and soaked 3 minutes, divide wash-out 4 times with the 2ml eluent at last, promptly each 0.5ml.The shared eluent 4ml of whole elution process.
GC/MS (NY/XQ421-2003) standard method detects Ractopamine eluent content.
Measuring the positive average recovery rate that adds urine sample is between the Ractopamine 80-110%, shows that this method satisfies the analytical approach requirement.
Claims (7)
1. method for preparing ractopamine column, this method comprises the following steps:
A) the Ractopamine specific antibody is mixed with the Sepharose4B glue of cyanogen bromide-activated, stir with rotary drum, coupling is spent the night; Sintered glass filter suction filtration coupling glue, the phosphate buffer wash-out is binding antibody not, each 5 milliliters, washes 4 times; Seal not binding site with the 1M monoethanolamine, add excess ethyl alcohol amine and hatched 2.5 hours, the suction filtration monoethanolamine is taken out with coupling buffer and to be washed, and then uses HAC, the alternately washing totally 4 times of Tris-Hcl damping fluid, each 5ml;
B) mucilage binding after the coupling is gone in the affinity chromatography plastic column, dress is annotated the 1ml/ post, slightly firmly compresses, and promptly gets described ractopamine column.
2. according to the ractopamine column of the described method preparation of claim 1, this immune affinity column comprises that coupling has the Sepharose4B and the plastic column that loads it of Ractopamine specific antibody, and sample-loading buffer, leacheate and eluent.
3. the described ractopamine column of claim 2, wherein said Ractopamine specific antibody is polyclonal antibody or monoclonal antibody.
4. the described ractopamine column of claim 2, wherein said sample-loading buffer is PBS, and described leacheate is PBST, and described eluent is that volume ratio is methyl alcohol/1M acetate mixture of 97: 3, wherein said PBS is 0.02MPB-0.05MNaCl, PH7.2; Described PBST is 0.02MPB-0.05MNaCl-0.2%Tween20, PH7.2.
5. the using method of the described ractopamine column of claim 2, this method comprises:
A) immune affinity column and sample-loading buffer, leacheate and the eluent of 4 ℃ of preservations of taking-up are back to room temperature, with the abundant drip washing affinity column of sample-loading buffer, remove the albumen and the antiseptic that contain in the store buffer liquid;
B) sample to be checked that will handle well be diluted to sample-loading buffer volume required, last sample, after the sample solution drip-dry, leacheate drip washing cylinder discards, rubber pipette bulb dries up solution in the post;
C) with the Ractopamine of eluent wash-out specificity combination, collect eluent, preserve to be checked.
6. the purposes of the described ractopamine column of claim 2 is characterized in that described purposes is for extracting the Rct opamine residue in feed and animal derived product and the animal metabolism thing.
7. the described purposes of claim 6, wherein said animal metabolism thing is a urine.
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| CN101907624A (en) * | 2010-07-29 | 2010-12-08 | 中国农业科学院农业质量标准与检测技术研究所 | Immune affinity chromatographic column for rhodamine 6G and preparation method and application thereof |
| CN102346185A (en) * | 2010-07-29 | 2012-02-08 | 中国农业科学院农业质量标准与检测技术研究所 | Immune affinity chromatographic column for rhodamine B, its preparation method and its purpose |
| CN103100237B (en) * | 2012-12-31 | 2015-12-02 | 南宁市蓝光生物技术有限公司 | Micro high efficiency Ractopamine immunoaffinity purification enriching column preparations and applicatio |
| CN104117228B (en) * | 2013-04-28 | 2016-06-22 | 北京华安麦科生物技术有限公司 | A kind of 6-(10-hydroxy-6-oxo-trans-1-undecenyl)-.beta.-resorcylic acid lactone immune affinity column and its production and use |
| CN108490082A (en) * | 2017-11-02 | 2018-09-04 | 苏州大学 | A kind of Ractopamine specific immunity affinity chromatography chromatography glue and its preparation method and application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1645134A (en) * | 2005-01-26 | 2005-07-27 | 上海大学 | Detection for zearalenone |
| CN1687783A (en) * | 2005-05-24 | 2005-10-26 | 中国农业大学 | Affinity chromatography-enzyme linked immunity test method for ractopamine and dedicated kit |
| EP1657235A3 (en) * | 2004-11-10 | 2006-06-07 | Randox Laboratories Ltd. | Phenethanolamine-derived haptens, immunogens and conjugates comprising them and antibodies recognising said immunogenes and conjugates |
| CN1790025A (en) * | 2005-12-08 | 2006-06-21 | 华南农业大学 | Test paper for lateral flow immunochromatographic semi-quantitative detection of ractopamine |
-
2006
- 2006-08-08 CN CNB2006101038980A patent/CN100570323C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1657235A3 (en) * | 2004-11-10 | 2006-06-07 | Randox Laboratories Ltd. | Phenethanolamine-derived haptens, immunogens and conjugates comprising them and antibodies recognising said immunogenes and conjugates |
| CN1645134A (en) * | 2005-01-26 | 2005-07-27 | 上海大学 | Detection for zearalenone |
| CN1687783A (en) * | 2005-05-24 | 2005-10-26 | 中国农业大学 | Affinity chromatography-enzyme linked immunity test method for ractopamine and dedicated kit |
| CN1790025A (en) * | 2005-12-08 | 2006-06-21 | 华南农业大学 | Test paper for lateral flow immunochromatographic semi-quantitative detection of ractopamine |
Non-Patent Citations (1)
| Title |
|---|
| 莱可多巴胺残留检测方法研究进展. 于洪侠，杨曙明.中国兽药杂志，第38卷第11期. 2004 * |
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