Abstract
An accurate, precise and rapid method has been presented for the atomic absorption spectrophotometric determination of Mn, Cu, Ni, Cr, Mo, V, Ti and Al in steel.
The sample is dissolved in acid. The solution prepared to volume and aliquot is subjected to the atomic absorption analysis of Mo, V, Ti and Al by nitrous-oxide acetylene flame and other elements by air acetylene flame referring to the calibration curves.
Influenced by large amounts of Fe and other elements, the determination of Cr and Mo should be done in the presence of the suppressor, NH4Cl for Cr and K2SO4 for Mo.
On the determination of Ti, Al was added both for the enhancement of sensitivity and the suppression of other elements.
The apparatus employed was a Nippon Jarrell- ash AA-I type with a water cooling fish tail burner having a solot 0.4mm by 50mm.
