CaptureSelect CH1-XL Affinity Matrix is the improved version of CaptureSelect IgG-CH1 Affinity Matrix. The specificity is the same, but it features a wider elution range (pH 3.0–4.5), increased binding capacity, and improved stability at higher pH.

CaptureSelect CH1-XL Affinity Matrix recognizes the CH1 domain of human IgG antibodies, enabling purification of all subclasses (1, 2, 3, and 4) of human IgG and Fab fragments, independent of the light-chain isotype and source material.

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