ABSTRACT
Contents 25.1 Introduction ................................................................................................................. 441 25.2 Sample Treatment ........................................................................................................ 442
25.2.1 Organic Matter Destruction-Mineralization ............................................... 442 25.2.1.1 Wet Ashing .................................................................................... 442 25.2.1.2 Dry Ashing .................................................................................... 444
25.2.2 Other Sample Pretreatments ........................................................................... 444 25.2.2.1 Determination Methods ................................................................. 445
25.3 Conclusions ...................................................................................................................457 25.4 Abbreviations ................................................................................................................458 References ................................................................................................................................458
