Chromatography Forum

Hello,
the measuring cell of my UV/Vis detector is very dirty, so hardly any energy gets through. I have already carried out a measuring procedure with nitric acid, water, acetone and acetonitrile. Minimal success could be observed. Do you know of any other cleaning procedures I could try?
(I changed the deuterium lamp on Friday).
Many thanks and best regards

After long exposure to intense UV, detector cells windows will "solarize" (often ending up looking like amethysts). Time to change the windows.

which brand is the UV detector, how many is energy of ref cell .