*Note: Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.
Step |
Procedure |
1. |
Before adding to wells, equilibrate the SABC working solution and TMB substrate for at least 30 min at 37°C. When diluting samples and reagents, they must be mixed completely and evenly. |
2. |
Set Positive, negative control and test samples wells on the pre-coated plate respectively. One test sample need 5 wells, 5 positive and 5 negative control wells. If need to detect one sample A, you need 1×5 (remark number as A1,A2,A3,A4,A5)+10=15wells. If need to detect two samples, you need 2×5+10=20 wells, and so on. And then, record their positions. |
3. |
Add 100μl of positive and negative control working solution into the control wells. |
4. |
Seal the plate with a cover and incubate at 37°C for 90 min. |
5. |
Remove the cover and discard the plate content, clap the plate on the absorbent filter papers or other absorbent material. Wash plate 2 times. Do NOT let the wells completely dry at any time. |
6. |
Add 100μl of biotin labeled antibody working solution to the corresponding wells (e.g., add Biotin-anti-mouse IgG1 antibody to A1,B1,C1 and the corresponding negative and positive control Wells; Add biotin-anti-mouse IgG2A to A2,B2,C2, and corresponding negative and positive control wells, and so on). |
7. |
Seal the plate with a cover and incubate at 37°C for 30 mins. |
8. |
Remove the cover, and wash plate 3 times with Wash buffer. Add 100μl of SABC working solution into each well, cover the plate and incubate at 37°C for 30 min. |
9. |
Remove the cover and wash plate 5 times with Wash buffer, and each time let the wash buffer stay in the wells for 1-2 min. |
10. |
Add 90μl of TMB substrate into each well, cover the plate and incubate at 37°C in dark within 10-15 min. (Note: This incubation time is for reference use only, the optimal time should be determined by end user.) |
11. |
Add 50μl of Stop solution into each well and mix thoroughly. The color changes into yellow immediately. Read the OD. Absorbance at 450 nm in a microplate reader immediately after adding the stop solution. |