Wet ashing of organic matrix with Fenton\u27s reagent

Spaljivanje organske tvari oduzima najviše vremena tijekom analize uzoraka životne sredine, naročito kad se radi o velikim uzorcima do jednog kilograma. U ovom radu spaljivanje se provodi mokrim postupkom po Fentonu s H202/Fe2+. Uzorak se razrjeđuje u destiliranoj vodi, a onda se tek dodaje H202/Fe2+ prisutno u tragovima u uzorku služi kao katalizator. Spaljivanje se ne provodi do pepela nego se prekida nakon postizavanja bistre otopine.The ashing of the organic matrix is the most time-consuming and difficult step when environmental samples are analyzed. The ashing of environmental samples of organic and biological origin is performed by rapid dissolution with Fenton\u27s reagent i.e. H202/Fe2+. Fe2+ present in each sample is used as a catalysing agent. Before dissolution the samples are mixed with water