title: Determination of traces of Pt and Rh in soil and quartz samples contaminated by automobile exhaust after an ion-exchange matrix separation.
abstract: Monitoring of PGEs content in the natural samples is a crucial point in the environment science since catalytic car converters have been introduced. In the presented paper application of a very sensitive voltammetric method for determination of traces of Pt and Rh in the environmental samples contaminated by automobile exhausts is discussed. Voltammetric measurements were carried out in the supporting electrolyte containing formaldehyde and semicarbazide. PGEs were separated from the digested solutions of soils or quartz samples, collected from monitoring plots-by applying an ion-exchange resin Cellex-T. Pt was very effectively separated from the matrix approaching nearly 100% recovery after its elution by hydrochloric acid. Moreover the conditions of soil and quartz samples digestion were discussed. To validate the obtained result an independent analytical method-ICP MS was applied and analysis of certified reference material road dust 723-was completed.
authors.affiliation: Warsaw University, Faculty of Chemistry, 02-093 Warsaw, Pasteura 1, Poland. Electronic address: askow@chem.uw.edu.pl.
authors.forename: Joanna
authors.initials: J
authors.lastname: Kowalska
authors.affiliation: Warsaw University, Faculty of Chemistry, 02-093 Warsaw, Pasteura 1, Poland.
authors.forename: Katarzyna
authors.initials: K
authors.lastname: Kińska
authors.affiliation: Warsaw University, Faculty of Chemistry, 02-093 Warsaw, Pasteura 1, Poland.
authors.forename: Joanna
authors.initials: J
authors.lastname: Pałdyna
authors.affiliation: Warsaw University, Faculty of Chemistry, 02-093 Warsaw, Pasteura 1, Poland.
authors.forename: Monika
authors.initials: M
authors.lastname: Czyżewska
authors.affiliation: Warsaw University, Faculty of Chemistry, 02-093 Warsaw, Pasteura 1, Poland.
authors.forename: Kamila
authors.initials: K
authors.lastname: Boder
authors.affiliation: Warsaw University, Faculty of Chemistry, 02-093 Warsaw, Pasteura 1, Poland.
authors.forename: Beata
authors.initials: B
authors.lastname: Krasnodębska-Ostręga
mesh_terms: D055664:Electrochemical Techniques; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis*; D007474:Ion Exchange; D013058:Mass Spectrometry; D008872:Microwaves; D010984:Platinum / Q000032:analysis*; D011791:Quartz / Q000737:chemistry*; D012238:Rhodium / Q000032:analysis*; D012987:Soil / Q000737:chemistry*; D052616:Solid Phase Extraction; D001335:Vehicle Emissions
chemical_list: D004785:Environmental Pollutants; D012987:Soil; D001335:Vehicle Emissions; D011791:Quartz; D010984:Platinum; D012238:Rhodium
keywords: Adsorptive voltammetry; ICPMS; Platinum group elements; SPE; Soil pollution