Comparison of Spectrophotometric Methods for Determination of Iron in Acid Cleaning, and Passivating Stainless Steel Solution by UV-VIS, ICP/MS, and FAAS

Generally, more sophisticated techniques such as, flame atomic absorption (AAS), inductively coupled plasma spectrometer (ICP-MS), and UV/Visible Spectrophotometer were used to determine trace iron metals in pickling (acid cleaning), passivating stainless steel solutions. Simple novel spectrophotometric methods are described for simultaneous determination of iron. While these provide excellent sensitivity selectivity. The results found be satisfactory agreement (shows no significant difference) with those acquired by the spectrophotometer (FAAS), UV-Vis Spectrometer, ICP/MS techniques. shows that concentration very close each other (less than 5.0%)