Make the switch. Purify your proteins by HPLC. It's fast and efficient. And the Bio-Rad Protein Chromatography System is specially designed for protein and peptide purification. Moreover, it's easy to use. Make the switch now from conventional methods. Our system comes complete with 6 different columns providing a full array of protein and peptide purification techniques. You can separate proteins using: • • • • • •
High Performance Cation Exchange Chromatography
Activity
10
20 Minutes
Purification of yeast mitochondrial CI tetrahydrofolate synthetase isoenzyme. Sample courtesy of Karen Shannon, U.C. Berkeley, Dept. of Biochemistry. Sixty-eight percent of the enzyme activity eluted in the indicated fraction.
hydrophobic interaction hydroxylapatite reversed phase ion exchange affinity gel filtration
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These mechanisms allow high recovery of biologically active molecules in minutes. We back our Protein Chromatography System with in-depth technical assistance from our Protein Applications Department. Bio-Rad also offers state-of-the-art column technology through our leading R&D program in column development. You can depend on Bio-Rad for your protein HPLC needs. Let Bio-Rad make the switch easy for you.Call or write for our HPLC Systems brochure.
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Answers. CIRCLE 23 ON READER SERVICE CARD ANALYTICAL CHEMISTRY, VOL. 58, NO. 4, APRIL 1986 · 571 A