How to draw standard curve of elisa kit?_Questions_SUNLONG BIOTECH CO., LTD-杭州圣隆生物科技有限公司

How to draw standard curve of elisa kit?

Sunlong Biotech / 2023-10-23

4th degree Polynomial Fit!

Curveexpert:Curve expert

Normally people draw ELISA standard curve by using specialized tools for curve fitting, such as: Curve Expert 1.3

Below is "Curve Exert1.3" software, for example, draw the ELISA standard curve as follows:

1. Start "Curve Expert1.3" (Curve Expert1.3 free download. Zip)

2. X-axis: input values corresponding to the concentration, Y-axis: input the OD values of standard, as shown:

3.Click [Run] button, the following dialog box appears

4 Click [ok] button, the following two dialog boxes appear, then close the dialog box below

5. A list of some curves appears at the upper right corner of the dialog box, from "1" Start to click the name of curves, then the corresponding fitting curve will appear in the lower right corner.

6. Double click the best fitting curve for ELISA test, the dialog box appears as follows:

Note: select curve equation with the best coefficient (the "r" value) for computing. In the following dialog box, the "r" value at the upper right corner (close to 1 means the better fitting)

7. Press [Ctrl] key + [L] key, the following dialog box appears:

8. Enter the standard OD values, click [Calculate] button, you can get the actual content of the target protein. (N-fold diluted samples, calculate the value should be multiplied by N).

9. If you would like to have the curve fitting equation of ELISA, right-click blank space of the dialog box in step 6, choose "Information"

10.Get the following dialog box: Click "Copy"