Bifunctional magnesium oxide crystal successively as adsorbent and matrix modifier for preconcentration and determination of arsenic by graphite furnace atomic absorption spectrometry
Keywords: اسپکتروسکوپی جذب اتمی، طیف سنجی جذب اتمی; Arsenic; Atomic absorption spectrometry; Preconcentration; Magnesium oxide crystal; Bifunctional adsorbent;