Why does BD Perm/Wash needs to be made fresh everytime?

Valentina Grillo Alvarado @Valentina-Grillo-Alvarado

01 January 1970 1 1K Report

I am using it for intracellular staining. Why does it have to be made fresh every time?

Due to the presence of fetal bovine serum as one of its primary constituent it is suggested to prepare it fresh everytime

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