Formation and determination of organohalogen by-products in water - Part II. Sample preparation techniques for analytical approaches

There is a crucial need of analytical methods allowing the characterization and/or the quantitation of known and unknown organohalogen by-products (OXPBs) in water. This article is the second one (Part II) of a review trio dedicated to the formation and determination of organohalogen by-products in water; it presents an overview of the sample preparation techniques generally used prior to OXPBs analysis and details their advantages and drawbacks. After a comparison of the water samples generally analyzed (natural water versus deionized water spiked with organic matter), this section deals with sample preservation, OXPBs enrichment and selective extraction.