1. 1) P.W.J.M.Boumans : Theory of Spectrochemical Excitation, Plenum Press, New York, (1966), 1.
2. 2) P.W.J.M.Boumans : Inductively Coupled Plasma Emission Spectroscopy, Part I, Wiley, New York, (1987), 100.
3. 3) A.Montaser and D.W.Golightly : Inductively Coupled Plasma in Analytical Atomic Spectroscopy, 2nd Ed., VCH, New York, (1992), 249.
4. 4) C.Vandecastele and C.B.Block : Modern Methods for Trace Element Determination, Wiley, New York, (1993), 138.
5. 5) A.Montaser : Inductively Coupled Plasma Mass Spectrometry, Willy-VCH, New York, (1998), 891.