Immobilized polysiloxanes as stationary phases for high-performance liquid chromatography and solid phase extraction |
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Authors: | Isabel Cristina S F Jardim Kenneth E Collins Carol H Collins |
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Institution: | Instituto de Química, Universidade Estadual de Campinas, Cx. Postal 6154, 13084-971, Campinas, SP, Brazil |
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Abstract: | Polysiloxanes immobilized onto the surfaces of porous silica particles have proven to be good stationary phases for the separation of multiresidues of pesticides and their metabolic/degradation products by reversed-phase high-performance liquid chromatography (RP-HPLC). Similar materials have proven effective for pre-concentration and clean-up procedures using solid phase extraction. The present paper describes the preparation and some applications of several of these packing materials. |
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Keywords: | Polysiloxanes High-performance liquid chromatography Solid phase extraction |
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