Bovine Brucellosis antibody enzyme-linked immunoassay kit instruction manual

This kit is for research use only.
Detection range: 96T
purpose of usage:
This kit is used to determine the antibody content of brucellosis in bovine serum, plasma and related liquid samples.
Experimental principle
The kit uses a double antigen sandwich method to determine the antibody level of bovine brucellosis in the specimen. The microporous plate is coated with the purified bovine brucellosis antigen to prepare a solid phase antigen, and the brucellosis antibody is sequentially added to the micropores of the coated monoclonal antibody, and then combined with the HRP-labeled brucellosis antigen to form The antibody-antigen-enzyme-labeled antibody complex was thoroughly washed and added to the substrate TMB for color development. TMB is converted to blue under the catalysis of HRP enzyme and converted to the final yellow color by the action of an acid. The color depth is positively correlated with motilin (MTL) in the sample. The absorbance (OD value) was measured at a wavelength of 450 nm using a microplate reader, and the concentration of human motilin (MTL) in the sample was calculated from a standard curve.
Kit composition
30 times concentrated washing solution
20ml × 1 bottle
Stop solution
6ml × 1 bottle
Enzyme standard reagent
6ml × 1 bottle
Standard product (320pg/ml)
0.5ml × 1 bottle
Enzyme label coated plate
12 holes × 8
Standard dilution
1.5ml × 1 bottle
Sample diluent
6ml × 1 bottle
Instruction manual
1 copy
Developer A solution
6ml × 1 bottle
Sealing film
2 sheets
Developer B solution
6ml × 1 bottle
sealed bag
Specimen requirements
1. The specimens should be extracted as soon as possible after collection, and the extraction should be carried out according to the relevant literature. The experiment should be carried out as soon as possible after extraction. If the test cannot be performed immediately, the specimen can be stored at -20 °C, but repeated freezing and thawing should be avoided.
2. Samples containing NaN3 could not be detected because NaN3 inhibited horseradish peroxidase (HRP) activity.
1. Dilution of standard: This kit provides one original standard, which can be diluted in a small tube according to the following chart.
Standard No. 5
Add 150 μl of standard dilution to 150 μl of the original standard
Standard No. 4
Add 150 μl of standard dilution to 150 μl of standard #5
Standard No. 3
Add 150 μl of standard dilution to 150 μl of standard #4
Standard 2
Add 150 μl of standard dilution to 150 μl of Standard #3
Standard No. 1
150 μl of Standard 2 is added to 150 μl of standard dilution
2. Adding samples: set blank holes separately (the blank control wells are not added with the sample and the enzyme standard reagent, the other steps are the same), the standard holes, and the sample holes to be tested. Accurately load 50 μl of the standard on the enzyme-labeled plate, add 40 μl of the sample dilution to the well to be tested, and then add 10 μl of the sample to be tested (the final dilution of the sample is 5 times). Add the sample to the bottom of the well of the microplate, try not to touch the wall of the well, and shake gently to mix.
3. Incubation: The plate was sealed with a sealing film and incubated at 37 ° C for 30 minutes.
4. Liquor: 30 times concentrated washing solution diluted with distilled water 30 times and used
5. Washing: Carefully remove the sealing film, discard the liquid, dry it, fill each well with the washing solution, let stand for 30 seconds, then discard it, repeat 5 times, and pat dry.
6. Add enzyme: Add 50 μl of enzyme labeling reagent to each well, except for blank wells.
7. Incubation: The operation is the same as 3.
8. Wash: Operate the same as 5.
9. Color development: add 50 μl of color developer A, and then add 50 μl of color developer B, gently shake and mix, and color for 15 minutes at 37 °C.
10. Termination: 50 μl of stop solution was added to each well to stop the reaction (the blue color turned yellow).
11. Measurement: The absorbance (OD value) of each well was measured in sequence with a blank air conditioner of zero and a wavelength of 450 nm. The measurement should be carried out within 15 minutes after the addition of the stop solution.
Summary of operating procedures:
1. Prepare reagents, samples and standards
2. Add prepared samples and standards and react at 37 ° C for 30 minutes.
3. Wash the plate 5 times, add the enzyme standard reagent, and react at 37 ° C for 30 minutes.
4. Wash the plate 5 times, add the coloring solution A, B, and react at 37 ° C for 10 minutes.
5. Add stop solution
OD value within 6.15 minutes
7. Calculation
Taking the concentration of the standard as the abscissa and the OD as the ordinate, draw a standard curve on the coordinate paper, and find the corresponding concentration from the standard curve according to the OD value of the sample; multiply by the dilution factor; or use the concentration of the standard Calculate the linear regression equation of the standard curve with the OD value, substitute the OD value of the sample into the equation, calculate the sample concentration, and multiply by the dilution factor, which is the actual concentration of the sample.
1. The kit should be taken out from the refrigerated environment and should be used at room temperature for 15-30 minutes before use. If the enzyme label is unsealed after opening, the slats should be stored in a sealed bag.
2. Concentrated washing liquid may crystallize out. When diluted, it can be heated and dissolved in a water bath. The washing will not affect the result.
3. The sampler should be used for each step, and the accuracy should be corrected frequently to avoid test errors. It is best to control the loading time within 5 minutes. If the number of specimens is large, it is recommended to use a gun.
4. Please make a standard curve at the same time of each measurement, it is best to make a double hole. If the content of the substance to be tested in the specimen is too high (the OD value of the sample is larger than the OD value of the first hole of the standard well), please first dilute the sample dilution with a certain multiple (n times) and then measure it. When calculating, multiply the total dilution by the total dilution. Multiple (×n×5).
5. The sealing film is intended for single use only to avoid cross-contamination.
6. Please keep the substrate away from light.
7. Strictly follow the instructions of the manual, the test results must be based on the microplate reader reading.
8. All samples, washings and various wastes should be treated as infectious materials.
9. The different batch components of this reagent must not be mixed.
10. In the case of an English manual, the English manual shall prevail.
Storage conditions and expiration date
1. The kit is stored at: 2-8 °C.
2. Validity: 6 months

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