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    Documents | Sample Preparation By Mixed-Mode SPE Using ISOLUTE ® HAX

    Sample Preparation By Mixed-Mode SPE Using ISOLUTE ® HAX

    ISOLUTE HAX mixed-mode SPE sorbent is based on a combination of strong anion exchange and non-polar chemistries. Acidic drugs are retained by two primary retention mechanisms. This allows a rigorous interference elution regime to be used to elute interferences retained by either non-polar or anion exchange interactions alone. Only analytes with both non-polar and acidic characteristics are extracted usign the ISOLUTE HAX sorbent, providing an extremely pure final extract.

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