A system configured for extracting an analyte from a sample, the system comprising: a reaction chamber comprising a reaction vessel , the reaction vessel comprising: a reaction vessel column configured for receiving the sample and a reaction solution, a mixer located at a bottom end of the reaction vessel configured for mixing the sample with the reaction solution, a reaction vessel filter located at the bottom end of the reaction vessel configured for retaining insoluble components from a reaction mixture of the sample and the reaction solution and passing soluble components from the reaction mixture, and a reaction vessel drain located at the bottom end of the reaction vessel and below the reaction vessel filter configured for draining the soluble components from the reaction mixture, including a dissolved analyte, from the reaction vessel ; a purification chamber located below the reaction chamber comprising a purification vessel , the purification vessel comprising; a purification vessel column configured for receiving the soluble components from the reaction mixture, including the dissolved analyte, from the reaction vessel drain, a selective sorbent disposed in the purification vessel configured for retaining contaminants from the soluble components from the reaction mixture and passing a purified analyte, and a purification vessel drain : located at a bottom end of the purification vessel and below the selective sorbent configured for draining the purified analyte from the purification vessel ; an evaporation chamber located below the purification chamber comprising an evaporation container , the evaporation container configured for receiving the purified analyte from the purification vessel drain ; and a heater (H) configured for heating the evaporation chamber and evaporating a solvent from the purified analyte. a reaction chamber comprising a reaction vessel , the reaction vessel comprising: a reaction vessel column configured for receiving the sample and a reaction solution, a mixer located at a bottom end of the reaction vessel configured for mixing the sample with the reaction solution, a reaction vessel column configured for receiving the sample and a reaction solution, a mixer located at a bottom end of the reaction vessel configured for mixing the sample with the reaction solution, a reaction vessel filter located at the bottom end of the reaction vessel configured for retaining insoluble components from a reaction mixture of the sample and the reaction solution and passing soluble components from the reaction mixture, and a reaction vessel drain located at the bottom end of the reaction vessel and below the reaction vessel filter configured for draining the soluble components from the reaction mixture, including a dissolved analyte, from the reaction vessel ; a purification chamber located below the reaction chamber comprising a purification vessel , the purification vessel comprising; a purification vessel column configured for receiving the soluble components from the reaction mixture, including the dissolved analyte, from the reaction vessel drain, a selective sorbent disposed in the purification vessel configured for retaining contaminants from the soluble components from the reaction mixture and passing a purified analyte, and a purification vessel drain : located at a bottom end of the purification vessel and below the selective sorbent configured for draining the purified analyte from the purification vessel ; an evaporation chamber located below the purification chamber comprising an evaporation container , the evaporation container configured for receiving the purified analyte from the purification vessel drain ; and a heater (H) configured for heating the evaporation chamber and evaporating a solvent from the purified analyte. <EOS>