Determination of iron species in food samples with dual direct immersion single-drop microextraction followed by graphite furnace atomic absorption spectrometry

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

“…Several of the entries in Table 1 (pre-concentration by LLE or SPE) are summaries of papers describing speciation analysis , including that of As in rice, 81,82 Cr in lettuce and water, 83,84 Fe in beverages, 85,86 Hg in food, water and blood, 87 Mn in food and water, 88 Te in beverages, 89 Tl in beverages, 90 and V in beverages. 91…”