Background:

Arachidonic acid-d₁₁is intended for use as an internal standard for the quantification of arachidonic acid by GC-or LC-mass spectrometry. Arachidonic acid is an essential fatty acid and a precursor for all prostaglandins, thromboxanes, and leukotrienes. Virtually all cellular arachidonic acid is esterified in membrane phospholipids where its presence is tightly regulated through multiple interconnected pathways.¹Free arachidonic acid is a transient, critical substrate for the biosynthesis of eicosanoid second messengers. Receptor-stimulated release, metabolism, and re-uptake of free arachidonate are all important aspects of cell signaling and inflammation.²
Arachidonic acid-d₁₁MaxSpec^?standard is a quantitative grade standard of arachidonic acid-d₁₁that has been prepared specifically for mass spectrometry and related applications where quantitative reproducibility is required. The solution has been prepared gravimetrically and is supplied in a deactivated glass ampule sealed under argon. The concentration was verified by comparison to an independently prepared calibration standard. This arachidonic acid-d₁₁MaxSpec^?standard is guaranteed to meet identity, purity, stability, and concentration specifications and is provided with a batch-specific certificate of analysis. Ongoing stability testing is performed to ensure the concentration remains accurate throughout the shelf life of the product.Note: The amount of solution added to the vial is in excess of the listed amount. Therefore, it is necessary to accurately measure volumes for preparation of calibration standards. Follow recommended storage and handling conditions to maintain product quality.

1.Nixon, A.B., Greene, D.G., and Wykle, R.L.Comparison of acceptor and donor substrates in the CoA-independent transacylase reaction in human neutrophilsBiochim. Biophys. Acta.1300(3)187-196(1996) 2.Burgoyne, R.D., and Morgan, A.The control of free arachidonic acid levelsTrends Biochem. Sci.15(10)365-366(1990)