Industrial Samples
Quality control of finished products of steel industry and other products such as alloys requires accurate analysis. For that an analysis an alloy or steel is be dissolved in acid (HCl, HNO3, HClO4 or a mixture of these) and a solution is prepared for analysis by AAS. Care must be taken to eliminate excess of acid. A typical example is described in following lines.
Determination of molybdenum in steel:
Weighed amount of sample is dissolved in aqua regia and finally in dil HCl. Final volume is made up to fixed volume in a volumetric flask by adding doubly distilled water. Mol ybdenum can be determined in acet ylene-air or acetylene-N2O flame selecting a wavelength of 313.26 nm. Let us take up an example.