HPLC Analysis of Plasma Proteins on BIOshell™ A400 Protein C4

HPLC Analysis of Plasma Proteins on BIOshell™ A400 Protein C4


column BIOshell A400 Protein C4; 10 cm x 2.1 mm I.D., 3.4 µm particles (66825-U)
column temp. 75 °C
mobile phase [A] 75:25 (0.1% TFA in water): (0.1% TFA in acetonitrile); [B] 25:75 (0.1% TFA in water): (0.1% TFA in acetonitrile)
gradient 15% to 32.5% B in 5 min; 32.5% to 100% B in 3 min
flow rate 0.3 mL/min
pressure 870 psi (60 Bar)
sample Mixture of plasma proteins, 100 µg/mL, 0.1% trifluoroacetic acid
injection 1 µL
detector UV, 215 nm


Analysis Note Proteins can be critical molecules to monitor in assessing a particular disease or illness. The abundance of a particular protein (or isoforms thereof) may be indicative of a disease. Likewise, post-translational modifications to a protein may be crucial in the pathology of a disease. For such reasons, the ability to resolve and analyze all these different proteins in a clinical sample from a patient may be of paramount importance. This application demonstrates the ability of the BIOshell A400 Protein C4 column to resolve a mixture of plasma proteins to baseline resolution using a typical water/acetonitrile mobile phase solution supplemented with trifluoroacetic acid.
Categories Analytical Chromatography, Proteins
Featured Industry Life Science and Biopharma
Legal Information BIOshell is a trademark of Sigma-Aldrich Co. LLC
Other Notes The broad peak seen after 8 min represents impurities from the standards. Prealbumin, under acidic conditions, dissociates into four subunits.
suitability application for HPLC


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