The quantitation of proteins due to their absorbance at ~280 nm (UV region)is due to the large absorbtivity of the ________ amino acids.
A)anionic
B)dansylated
C)cleaved
D)polar
E)aromatic

Question

Quizplus · Accepted Answer

Aromatic amino acids, such as tryptophan, tyrosine, and phenylalanine, have strong absorbance at ~280 nm, making them ideal for quantitating total protein concentration in a sample.

The Quantitation of Proteins Due to Their Absorbance at ~280