Simultaneous Determination of Nickel and Copper by H-Point Standard Addition MethodFirst-Order Derivative Spectrophotometry in Plant Samples After Separation and Preconcentration on Modified Natural Clinoptilolite as a New Sorbent

Author： Roohparvar Rasool   Taher Mohammad Ali   Mohadesi Alireza  

Publisher： AOAC International

ISSN： 1944-7922

Source： Journal of AOAC International, Vol.91, Iss.3, 2008-05, pp. : 637-645

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