Certain features of will be down for maintenance the evening of Friday August 18th starting at 8:00 pm CDT until Saturday August 19th at 12:01 pm CDT.   Please note that you still have telephone and email access to our local offices. We apologize for any inconvenience.

UHPLC Analysis of IgA from Human Serum on BIOshell™ A400 Protein C4

UHPLC Analysis of IgA from Human Serum 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] 0.1% TFA in water; [B] 0.1% TFA in acetonitrile
gradient 30 to 60% B in 10 min; 60 to 100% B in 10 min
flow rate 0.2 ml/min
pressure 540 psi (37 bar)
sample IgA from human serum, 1 g/L, 0.05% TFA in water
injection 1 µl
detector UV, 215 nm


Analysis Note Human immunoglobulin A (IgA) can exist in two forms: a monomer (~150 kDa) in the serum and a dimer (~300 kDa) in mucosal secretory tissues. Serum IgA (monomeric) functions as an anti-inflammatory antibody by interacting with CD89 on immune effector cells. Serum IgA was chromatographically analyzed with a BIOshell A400 Protein C4 column. A secondary shoulder can be seen in the peak, indicating impurities and/or other variants may be present in the analytical standard.
Categories Analytical Chromatography, Proteins
Featured Industry Life Science and Biopharma
Legal Information BIOshell is a trademark of Sigma-Aldrich Co. LLC
suitability application for UHPLC


Related Links