How Solid Phase Extraction Minimizes the Use of Hazardous Solvents

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Courtesy of Horizon Technology, Inc.

According to water analysis expert Bob Johnson, CEO of Horizon Technology, Inc., the search for contaminants in water sources is creating more contamination than the original material it was intended to remove. Common techniques for isolating pollutants in defined volumes of water include Liquid-Liquid Extraction (LLE) and Continuous Liquid-Liquid Extraction (CLLE). These labor intensive techniques involve the use of relatively large amounts of organic solvents. Ironically, the final step in the quantification of harmful pollutants involves the evaporation of these solvents, which often escape into the environment in vapor or liquid forms.

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