Rotating coiled columns in the speciation analysis of natural samples: Dynamic fractionation of element forms in soils, sludges, and bottom sediments

Longterm study of transformation of potentially toxic element pollution in soil/water/sediment system by means of fractionation with sequential extraction procedures

“…• Elaboration of flow-through extraction chambers equipped with membrane filters for sequential extraction of 0,25 -5 g or 5-25 mg solid sample which can connected directly to element analytical detectors [34,35]. [38,39]. There is a hard risk of (cross)contamination due to the numerous operation and reagents' applications.…”

“…→ Reduction of number of operations and reagentapplications which was achieved by continuous flow systems [34][35][36][37][38][39][40][41][42][43][44][45].…”

Atomic spectrometry update. Environmental analysis

“…Rotating coiled columns are gaining in popularity as an alternative to sequential extraction for fractionation of trace elements in soils and sediment. Their utility has been reviewed (57 references) by Fedotov 186 who, together with Savonina and Wennrich, also compared microcolumns and RCCs for partitioning of Se in soil and sediment, 187 and of As and Sb in soil and sludge 188 with detection by ICP-AES.…”

Integrated Assessment of Affinity to Chemical Fractions and Environmental Pollution with Heavy Metals: A New Approach Based on Sequential Extraction Results

“…To date, a large number of sequential extraction schemes have been proposed. Each of them has advantages and limitations due to the non-selectivity of the reagents and incomplete extraction of chemical forms [10][11][12][13], the number of fractionation stages, duration of laboratory manipulations, sample-reagent ratio [14,15], redistribution of HMs between phases, and risk of cross-contamination [16,17]. A detailed analysis of the limitations of various schemes for sequential extraction of HMs has been provided in some works [18][19][20].…”