This reference edition is a compilation of the archival material reprinted from the regular monthly edition "Trends in Analytical Chemistry". It includes all the review-length articles published, but excludes meeting reports, book reviews and news items. These volumes provide a topical digest of developments and ideas in the analytical sciences. For subscribers to the library edition of TrAC, the reference editions form an integral part of the annual subscription, but for others these sources of information can be purchased seperately. They provide informative reading for those who devise and use analytical methods. This latest archival edition contains all the material published in 1998.