I want to detect nitric oxide (NO) with flow cytometry. I found two agent which are 4,5-Diaminofluorescein diacetate solution and 5,6-Diaminofluorescein diacetate- Sigma-Aldrich. Which is the best? I will work with MDSC and detect their ıntracelluler NO production. I am waiting your suggestion.
http://www.sigmaaldrich.com/catalog/product/sigma/50277?lang=en®ion=TR
http://www.sigmaaldrich.com/catalog/product/sigma/d225?lang=en®ion=TR