Q. The absorbance of a solution of tryptophan measured at 280 nm in a cuvette of 2.0 cm path length is 0.56 at pH 7. The molar extinction coefficient (e) for tryptophan at 280 nm is 5600 M-1cm-1 at pH 7. The concentration of tryptophan (in µM) in the solution is
Ans: 0.32 to 0.32
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