The names and definitions of reagents used as stationary phases for gas chromatography columns have been harmonised for the 10^th Edition of the Ph. Eur. At the same time, individual monographs have been reviewed to improve the correspondence between chromatography column brand names¹ and the reagents described.

This only affects the names of the reagents published in the monographs; the columns listed in the Knowledge Database and the analytical method have not been changed.

The modified monographs (and any reagents concerned) will be published in the 10^th Edition (July 2019). All the changes will be flagged by lines in the margin.

¹ Provided in the Knowledge database