Terbutaline (TER) ELISA Kit
For reference only. Please follow the manual included in your kit for instructions.
Catalog Number
RDF-E091
The Terbutaline (TER) ELISA Kit (RDF-E091) is an enzyme-linked immunosorbent assay for quantitative detection of TER in Food samples with a standard range of 0.1-8.1ppb. This kit uses the Traditional ELISA format for colorimetric detection of natural TER in samples including Muscle,Serum,Liver,Urine. The kit is easy to use and comes with a pre-coated microplate and all necessary reagents and buffers. The standard curve generated in the experiment is used to calculate the concentration of TER in samples. For research use only.
Product Specifications
Product Name
Terbutaline (TER) ELISA Kit
Catalog Number
RDF-E091
Detection Range
0.1-8.1ppb
Species Reactivity
Food
Species
Food
Assay Length
45 minutes
Experimental Method
Competitive Inhibition
Detection Method
Colorimetric
Sample Type
Muscle,Serum,Liver,Urine
Storage
2-8°C,Avoid freeze
Shelf Life
12 monthes
Product Details
Intended Use
For the quantitative detection of Terbutaline (TER) concentration in muscle, serum, liver, and urine samples.
Assay Principle
This kit uses Competitive-ELISA as the method for the quantitative detection. It can detect Terbutaline (TER) in samples, such as muscle, serum, etc. This kit is composed of ELISA Microtiter plate, HRP conjugate, standard and other supplementary reagents. The microtiter plate provided in this kit has been pre-coated with coupled antigen. During the detection, TER in the samples or standard competes with coupled antigen on the solid phase supporter for sites of anti-TER antibody. Then Horseradish Peroxidase (HRP) conjugate is added to each well, and substrate reagent is added for color development. There is a negative correlation between the OD value of samples and the concentration of TER. The concentration of TER in the samples can be calculated by comparing the OD of the samples to the standard curve.
Application Data
Reagents and Materials Provided
| Reagent | Quantity |
|---|---|
| ELISA Microtiter Plate | 96 wells |
| Standard Liquid | 1 mL each (ppb=ng/mL=ng/g) (0 ppb, 0.1 ppb, 0.3 ppb, 0.9 ppb, 2.7 ppb, 8.1 ppb) |
| Sample Diluent | 30 mL |
| 11×Concentrated HRP Conjugate | 1 mL |
| HRP Conjugate Diluent | 10 mL |
| Substrate Reagent A | 6 mL |
| Substrate Reagent B | 6 mL |
| Stop Solution | 6 mL |
| 20×Concentrated Wash Buffer | 25 mL |
| Plate Sealer | 3 |
| Sealed Bag | 1 |
| Manual | 1 |
All reagent bottle caps should be tightly closed to prevent evaporation and microbial contamination.
Materials Required but not Supplied
- Equipment: Microplate reader, Vortex mixer, Water Bath, Centrifuge, Balance (sensibility 0.01 g).
- Micropipettes: single-channel 20-200 µL, 100-1000 µL, and multi-channel 30-300 µL.
- Reagents: Trichloroacetic Acid (C2HCl3O2), NaOH.
Storage
- Store the kit at 2-8℃. Do not freeze any kit components.
- Return any unused microwells to their original foil bag and reseal them together with the desiccant provided. Continue to store at 2-8℃.
- Shelf life is approximately 12 months from date of manufacture. Check packaging for expiry date.
Sample Preparation
- Serum (cattle, sheep):
- Take 200 μL of serum into centrifuge tube;
- Add 200 μL of Sample Diluent and vortex for 2 min;
- Incubate at 80℃ for 5 min in water bath;
- Restore samples to room temperature, and take 40 μL for detection.
- Muscle (livestock), liver:
- Homogenize the representative sample with a homogenizer and mix fully.
- Weigh 2±0.05 g of homogenate sample into a 50 mL centrifuge tube;
- Add 3 mL of Wash Buffer (Solution 3), then add 3 mL of Tissue Diluent (Solution 1) and fully vortex for 1 min;
- Centrifuge for 5 min at 4000 r/min;
- Take 1 mL of mediate layer clear liquid into a new centrifuge tube;
- Add 40 μL of 0.5 M NaOH Solution (Solution 2), and fully vortex for 10s to mix thoroughly;
- Centrifuge for 5 min at 4000 r/min;
- Take 40 μL for detection.
- Urine (swine):
- Take 50 μL of clear urine sample for analysis directly (if the urine sample is muddy, it should be filtered or centrifuged at 4000 r/min for 5 min until the urine sample become clear). Samples temporarily not used should be frozen.
- Take 40 μL for detection.
Reagent Preparation
Solution preparation:
Prepare solutions according to the number of samples. Avoid using all components in the kit at once.
Solution 1: Tissue Diluent (for livestock, liver sample)
Dissolve 1g of Trichloroacetic Acid with 100 mL of deionized water, mix fully.
Solution 2: 0.5 M NaOH Solution (for livestock, liver sample)
Dissolve 2 g of NaOH to 100 mL with deionized water, mix fully.
Solution 3: Wash Buffer
Dilute 20×Concentrated Wash Buffer with deionized water. (20×Concentrated Wash Buffer (V): Deionized water (V) = 1:19).
Solution 4: HRP Conjugate
Dilute 11×Concentrated HRP Conjugate with HRP Conjugate Diluent. (11×Concentrated HRP Conjugate (V): HRP Conjugate Dilution (V) = 1:10).
Note: Please use immediately, it cannot be stored.
Notes:- Bring all reagents and samples to room temperature before use.
- Turn on the microplate reader 30 min in advance to preheat the instrument and set the testing parameters.
- All experimental apparatus should be clean, and disposable pipette should be used and changed frequently to avoid cross-contamination during the experiment.
Assay Procedure
Bring all reagents and samples to room temperature (25℃) before use. All reagents should be mixed thoroughly by gently swirling before pipetting. Avoid foaming. Any unused Microtiter plate wells should be resealed as soon as possible and stored at 2-8℃.
- Number: number the samples and standards in order (multiple wells), and keep a record of the plate layout. Standards and Samples must be tested in duplicate.
- Add Sample: add 40 μL of Standard or Sample to each well, then add 80 μL of HRP Conjugate (Solution 4), into each well. Oscillate gently for 10 s to mix thoroughly and cover the plate with a plate sealer, then incubate at 25℃ for 30 min in the dark.
- Wash: Carefully remove the plate sealer, then remove the liquid from each well. Immediately add 260 μL of Wash Buffer (Solution 3) to each well and wash. Repeat wash procedure 4 times, 30 s intervals each time. Invert the plate and pat it against a thick sheet of absorbent paper (If there are bubbles in the wells, clean pipette tips can be used to pop them).
- Color Development: add 50 μL of Substrate Reagent A to each well, and then add 50 μL of Substrate Reagent B. Gently oscillate for 10 s to mix thoroughly. Incubate at 25℃ for 15 min in the dark (The reaction time can be extended according to the amount of color change).
- Stop Reaction: add 50 μL of Stop Solution to each well. Gently oscillate for 10 s to mix thoroughly.
- OD Measurement: determine the optical density (OD value) of each well at 450 nm (reference wavelength 630 nm) with a microplate reader. This step should be performed no later than 5 min after the reaction has been stopped.
Calculation of Results
Absorbance (%) = A/A₀×100%
- A: Average absorbance of standard or sample
- A₀: Average absorbance of 0 ppb Standard
- Drawing and calculation of standard curve
- Create a standard curve by plotting the absorbance percentage of each standard on the y-axis against the log concentration on the x-axis to draw a semi-logarithmic plot. Add the average absorbance value of each sample to the standard curve to calculate the corresponding concentration. If samples have been diluted, the concentration calculated from the standard curve must be multiplied by the dilution factor.
- We recommend using professional software for fast and accurate analysis of large numbers of samples.
Product Data
Reaction conditions (Incubation time and temperature)
25℃; 30 min, 15 min
Detection limit
Serum, Urine --- 0.5 ppb; Muscle, Liver ---1 ppb
Cross-reactivity
Sample recovery rate
90%±30%.