• Rugged, high and low pH separations of polypeptides and peptides from pH 2-11.5 • Different selectivity possible at high and low pH • High efficiency and good recovery of hydrophobic peptides at high pH • Ideal for LC/MS with ammonium-hydroxide-modified mobile phase Agilent ZORBAX 300Å Extend-C18 is a wide-pore HPLC column for high efficiency separations of peptides from pH 2-11.5. The unique, bidentate bonded phase provides excellent lifetime and reproducibility at high and low pH. At high pH, retention and selectivity of peptides and polypeptides can change dramatically as a result of changes in charge on molecules. Excellent recoveries of hydrophobic polypeptides have been achieved at room temperature and high pH. LC/MS sensitivity of peptides and polypeptides can also be improved at high pH using a simple ammonium-hydroxide-containing mobile phase.
ZORBAX 300Å StableBond columns are an ideal choice for the reproducible separations of proteins and peptides for two reasons. Wide-pore, 300Å columns are necessary for an efficient separation of proteins and peptides, or other large molecules, in order to allow these analytes to completely access the bonded phase. Second, 300StableBond columns are unmatched in their durability at low pH, such as with TFA-containing mobile phases. For LC/MS separations at low pH, 300StableBond columns can also be used with formic acid and acetic acid mobile phase modifiers. These columns are available in five different bonded phases (C18, C8, C3, and CN) for selectivity and recovery optimization of proteins and polypeptides. To further increase sample recovery and improve efficiency for difficult proteins, 300StableBond columns can be used up to 80 °C. Capillary and nano columns can be used for either 1-D or 2-D proteomics separations.
ZORBAX 300Å StableBond columns are an ideal choice for the reproducible separations of proteins and peptides for two reasons. Wide-pore, 300Å columns are necessary for an efficient separation of proteins and peptides, or other large molecules, in order to allow these analytes to completely access the bonded phase. Second, 300StableBond columns are unmatched in their durability at low pH, such as with TFA-containing mobile phases. For LC/MS separations at low pH, 300StableBond columns can also be used with formic acid and acetic acid mobile phase modifiers. These columns are available in five different bonded phases (C18, C8, C3, and CN) for selectivity and recovery optimization of proteins and polypeptides. To further increase sample recovery and improve efficiency for difficult proteins, 300StableBond columns can be used up to 80 °C. Capillary and nano columns can be used for either 1-D or 2-D proteomics separations.
ZORBAX 300Å StableBond columns are an ideal choice for the reproducible separations of proteins and peptides for two reasons. Wide-pore, 300Å columns are necessary for an efficient separation of proteins and peptides, or other large molecules, in order to allow these analytes to completely access the bonded phase. Second, 300StableBond columns are unmatched in their durability at low pH, such as with TFA-containing mobile phases. For LC/MS separations at low pH, 300StableBond columns can also be used with formic acid and acetic acid mobile phase modifiers. These columns are available in five different bonded phases (C18, C8, C3, and CN) for selectivity and recovery optimization of proteins and polypeptides. To further increase sample recovery and improve efficiency for difficult proteins, 300StableBond columns can be used up to 80 °C. Capillary and nano columns can be used for either 1-D or 2-D proteomics separations. Features • Four different bonded phases for reversed-phase selectivity optimization of peptides and proteins • Exceptional stability and long lifetime at low pH with TFA containing mobile phases • Excellent reproducibility • Available in capillary and nano column dimensions for proteomics and other LC/MS applications
ZORBAX 300Å StableBond columns are an ideal choice for the reproducible separations of proteins and peptides for two reasons. Wide-pore, 300Å columns are necessary for an efficient separation of proteins and peptides, or other large molecules, in order to allow these analytes to completely access the bonded phase. Second, 300StableBond columns are unmatched in their durability at low pH, such as with TFA-containing mobile phases. For LC/MS separations at low pH, 300StableBond columns can also be used with formic acid and acetic acid mobile phase modifiers. These columns are available in five different bonded phases (C18, C8, C3, and CN) for selectivity and recovery optimization of proteins and polypeptides. To further increase sample recovery and improve efficiency for difficult proteins, 300StableBond columns can be used up to 80 °C. Capillary and nano columns can be used for either 1-D or 2-D proteomics separations. Features • Four different bonded phases for reversed-phase selectivity optimization of peptides and proteins • Exceptional stability and long lifetime at low pH with TFA containing mobile phases • Excellent reproducibility • Available in capillary and nano column dimensions for proteomics and other LC/MS applications
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