HPLC Ion Pair Reagents

Thermo Scientific™ Pierce™ Heptafluorobutyric Acid (HFBA)

Bottles and ampules of 99.5%-pure HFBA (MW 214.04, CAS 375-22-4), valid for use as an ion-pairing agent in reverse-phase peptide separations (HPLC).

Thermo Scientific™ Pierce™ Trifluoracetic Acid (TFA)

Bottles of 99.5%-pure TFA (MW 114.02, CAS 76-05-01) liquid (sold by weight); for HPLC use as an ion-pairing agent in reverse-phase peptide separations.

Thermo Scientific™ Pierce™ Formic Acid

A high-purity solvent supplied in glass ampules as a convenient, contamination-free alternative for preparing elution solvents for HPLC separations of protein and peptides.

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