The absorption spectra in the PCE options with and without a steel sample plus the blank Answer made up of steel had been recorded at room temperature employing a UV-Vis spectrophotometer (Jasco model V-730, Tokyo, Japan). The spectra have been measured within the vary from 200 to 800 nm. DXM https://2-fahcl16125.pages10.com/2-fa-hcl-an-overview-64888905