20.500.12556/DKUM-17527 VALIDACIJA IN MERILNA NEGOTOVOST PRI DOLOČANJU SVINCA IN KADMIJA V ZEMLJI Z METODO ICP-MS VALIDATION AND MEASUREMENT UNCERTAINTY IN DETERMINATION OF CADMIUM AND LEAD IN SOIL WITH ICP-MS METHOD Onesnaženost tal močno ogroža naravno vegetacijo. Zemlja sprejema težke kovine iz različnih virov, te pa v njej ostanejo več tisoč let. Kovini kot sta kadmij in svinec lahko zelo škodljivo vplivata na zdravje ljudi in živali, če se vključita v prehrambeno verigo. Diplomsko delo vsebuje opis postopka določanja kadmija in svinca v zemlji z metodo ICP-MS. Kadmij in svinec smo določali po standardnih metodah SIST EN ISO 17294-2: 2005 (kakovost vode — Uporaba induktivno sklopljene plazme z masno selektivnim detektorjem (ICP-MS)). Izvedli smo validacijo analizne metode, v kateri smo preverili validacijske parametre: natančnost, točnost, delovno območje, linearno območje, mejo zaznave, mejo določljivosti, vpliv matrice in izkoristek. Za ovrednotenje smo uporabili statistične teste. Merilno negotovost smo ocenili s pomočjo podatkov iz validacije. Soil pollution is a serious threat for the natural vegetation. The soil receives heavy metals from various sources. These metals remain there for thousands of years. Cadmium and lead can have a very harmful impact on human and animal health if they enter in the food chain. This diploma thesis contains the description of the process in determining of cadmium and lead in soil with the ICP-MS method. Cadmium and lead were determined according to standard methods SIST EN ISO 17294-2: 2005 (quality of water – the use of inductively coupled plasma mass spectrometry (ICP-MS)). We performed validation of the analytical method in which we have checked the validation parameters: precision, accuracy, working range, linear range, limit of detection, limit of quantification, matrix effects and recovery. For evaluation we used statistical tests. Measurement uncertainty was estimated using data from the validation study. Induktivno sklopljena plazma z masno spektrometrijo ICP-MS svinec kadmij zemlja validacija merilna negotovost. Inductively coupled plasma mass spectrometry ICP-MS lead cadmium soil validation measurement uncertainty. true true false [L. Flajšman] Slovenski jezik Angleški jezik Diplomsko delo 2011-02-18 16:27:19 2011-02-28 15:27:15 2022-04-13 09:34:51 2023-12-22 03:33:17 2011 0 Celje 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 543.2/.9(043.2) 15136278 URN:SI:UM:DK:MJVC0W6C VS_Flajsman_Lorna_2011.pdf VS_Flajsman_Lorna_2011.pdf 1 7F1E9EA7CE612C5E80E17BEF7BE75A31 bd4bece2da764cf47d304beb3cabe049a5fb25cdc7fc2d2f887e88f737cc4a85 e9b2b80d-7c04-11eb-bb7a-00155d0001ca 20.500.12556/dkum/cc6bc18b-b439-448a-a136-7393915e2fdd https://dk.um.si/Dokument.php?lang=slv&id=20507 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0