Answer / faneendrarao

In UV region below 200nm is a vaccum UV where there is a
characteristic UV absorptions taking place by atmospheric
Oxygen. Thats why we dont perform analysis in Vaccum UV
egion

Answer / anjali

Bec all analysis on uv is above 200 nm and in uv electronic excitation is occur ie pi to pi*; n to pi* this happen on 200 to 400 uv region according to wordward fisher rule so we analysis in 200 to 400 nm in uv

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