What is the absorbance maximum of Urea?

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William Letter

By itself, UV spectrophotometric methods are not selective for urea. By UV, extremely low abs,

Grzegorz Boczkaj

I support Whilliam's answer.

Rajesh Dev Sarkar you can simply find the absorbance spectrum of urea in the web.

regards,

Bruce Neagle

As I recall Urea is invisible in the UV. However (if I remember), there is a method in the AOAC to convert Urea to a Malonic acid derivative which has a yellow color.