Bond Elut PRS is a strong cation exchange sorbent that is also relatively high in polarity. With no appreciable degree of hydrophobicity, in non-polar solvents, PRS is capable of polar and hydrogen bonding interactions. Due to the very low pKa of PRS, it is recommended for weaker cationic species such as pyridinium compounds.
"This solid phase extraction method is highly versatile and can be used for most applications in food analysis. In combination with liquid chromatography, it eliminates matrices prior to analysis. It is one of the best extraction techniques especially for high complex samples such as food, environmental etc."
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