SEARCH Articles Figures Tables Absorption Extraction of Heavy Hydrocarbons and Water Vapor from Natural Gas Absorption and extraction Absorption high extraction ratio drugs Atomic absorption analysis, trace metal extraction Countercurrent absorption extraction Electrothermal Atomic Absorption Spectrometric Determination of Trace Metals in Sea Water with On-line Sorbent Extraction Separation and Preconcentration Electrothermal atomic absorption extraction SEPARATION COLUMNS (DISTILLATION, ABSORPTION, AND EXTRACTION) Selectivities in chemically enhanced absorption or extraction Solvent extraction atomic absorption