Application of three-variables Doehlert matrix for optimisation of an on-line pre-concentration system for zinc determination in natural water samples by flame atomic absorption spectrometry

Author： dos Santos W.N.L.   Santos C.M.C.   Ferreira S.L.C.  

Publisher： Elsevier

ISSN： 0026-265X

Source： Microchemical Journal, Vol.75, Iss.3, 2003-12, pp. : 211-221

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