New International Calibration Standards for HPLC Analysis of Isomerized α-Acids

Abstract

Since 1998, the ASBC, EBC, IoB (now IGB), and BCOJ have been working together toward the creation and international adoption of a single set of HPLC standards for use in the quantitative determination of isomerized and reduced-isomerized α-acids in hop products and in beer. These international calibration standards (ICS) have now been produced, analyzed, and verified fot the benefit of the brewing industry by the International Subcommittee for Isomerized Hop α-Acids Standards.