I made ELISA test and read it after 50 min , the results made sense and it was OK
But i reread it after 1h and 45 min but the results are less than the first time . Why this happened?
Dear Yasmeen
Please take a look at the following link and file. I hope you get the answer.
https://www.researchgate.net/post/How_fast_should_an_ELISA_plate_be_read
Note: i use the pNPP substrate for the Alkaline phosphatase
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