E s p e c t r o f o t o m e t r o ⟶ [ C r ] [ U r e a ] [ G l ] ⟶ d e t e c t o r {\displaystyle {\begin{array}{c}Espectrofotometro\end{array}}\longrightarrow {\begin{array}{c}\left[Cr\right]\\\left[Urea\right]\\\left[Gl\right]\end{array}}\longrightarrow {\begin{array}{c}detector\end{array}}}