The Institute for Reference Materials and Measurements (IRMM) organised an
interlaboratory comparison for the validation of a method (collaborative
trial) for the determination of bromate in drinking water (IMEP-25a) in
support to the activities of the ISO/TC 147/SC 2. The method was based on the
use of ion chromatography-post column reaction-ultraviolet detection
(IC-PCR-UV). The standard operational procedure with a detailed description of
the method to be used and validated in this exercise was distributed to the
participants after registration, by e-mail. Seven sample matrices were
included in this exercise: hard drinking water, soft drinking water, mineral
water, raw water, swimming pool water, river water and a bromate standard
solution.
This exercise was open to all laboratories with experience in bromate
analysis in water.