Description
Product Name: | Rat Ang1-7 (Angiotensin 1-7) ELISA Kit |
Product Code: | AEES00693 |
Assay Type: | Competitive |
Format: | 96T |
Assay Time: | 2.5h |
Reactivity: | Rat |
Detection Range: | 15.63-1000 pg/mL |
Sensitivity: | 9.38 pg/mL |
Sample Volume: | 50μL |
Specificity: | This kit recognizes Ang1-7 in samples. No significant cross-reactivity or interference between Ang1-7 and analogues was observed. |
Reproducibility: | Both intra-CV and inter-CV are < 10%. |
Application: | This ELISA kit applies to the in vitro quantitative determination of Ang1-7 concentrations in. |
This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with Ang1-7. During the reaction, Ang1-7 in the sample or standard competes with a fixed amount of Ang1-7 on the solid phase supporter for sites on the Biotinylated Detection Ab specific to Ang1-7. Excess conjugate and unbound sample or standard are washed away, and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well and incubated. Then a TMB substrate solution is added to each well. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns from blue to yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The concentration of Ang1-7 in tested samples can be calculated by comparing the OD of the samples to the standard curve.
Precision
Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Ang1-7 were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Ang1-7 were tested on 3 different plates, 20 replicates in each plate.
Intra-assay Precision | Inter-assay Precision | |||||
Sample | 1 | 2 | 3 | 1 | 2 | 3 |
n | 20 | 20 | 20 | 20 | 20 | 20 |
Mean (pg/mL) | 50.05 | 150.48 | 436.34 | 46.79 | 150.27 | 427.32 |
Standard deviation | 2.53 | 8.29 | 13.61 | 3.13 | 7.62 | 16.37 |
CV (%) | 5.05 | 5.51 | 3.12 | 6.69 | 5.07 | 3.83 |
Recovery
The recovery of Ang1-7 spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.
Sample Type | Range (%) | Average Recovery (%) |
Serum(n=8) | 93-107 | 100 |
EDTA plasma(n=8) | 87-100 | 93 |
Cell culture media(n=8) | 95-107 | 101 |
Kit Components: | An unopened kit can be stored at 2-8℃ for 1 month. If the kit is not supposed to be used within 1 month, store the components separately according to the following conditions once the kit is received.
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1. | Add 50μL standard or sample to the wells, immediately add 50μL Biotinylated Detection Ab working solution to each well. Incubate for 45 min at 37°C |
2. | Aspirate and wash the plate for 3 times |
3. | Add 100μL HRP conjugate working solution. Incubate for 30 min at 37°C. Aspirate and wash the plate for 5 times |
4. | Add 90μL Substrate Reagent. Incubate for 15 min at 37°C |
5. | Add 50μL Stop Solution |
6. | Read the plate at 450nm immediately. Calculation of the results |