Determination of Pt and Pd in particles emitted from automobile exhaust catalysts using ion-exchange matrix separation and voltammetric detection

Paraskevas, M; Tsopelas, F; Ochsenkuhn-Petropoulou, M

dc.contributor.author	Paraskevas, M	en
dc.contributor.author	Tsopelas, F	en
dc.contributor.author	Ochsenkuhn-Petropoulou, M	en
dc.date.accessioned	2014-03-01T02:08:36Z
dc.date.available	2014-03-01T02:08:36Z
dc.date.issued	2012	en
dc.identifier.issn	00263672	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29689
dc.subject	Automobile exhaust catalysts	en
dc.subject	GFAAS	en
dc.subject	Ion-exchange separation	en
dc.subject	Platinum group elements	en
dc.subject	Voltammetric techniques	en
dc.title	Determination of Pt and Pd in particles emitted from automobile exhaust catalysts using ion-exchange matrix separation and voltammetric detection	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s00604-011-0724-y	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s00604-011-0724-y	en
heal.publicationDate	2012	en
heal.abstract	We report on the ion-exchange separation of Pt and Pd from the main elements emitted from catalysts of gasoline-fueled cars by exploiting the selective chelating ion exchanger Lewatit MonoPlus TP-214. Pt and Pd were then eluted with a recovery of 92% and 96%, respectively, using an acidified solution of thiourea, and the eluent was analyzed by sequential voltammetry. The detection limits are 0. 04 μg L-1 and 1 μg L-1 for Pt and Pd, respectively, and the relative standard deviation is about 4. 0% (for n = 10). The procedure was successfully applied to particles emitted from automobile exhaust catalysts of four capacity engine vehicles. Graphite furnace atomic absorption spectrometry was also employed for reasons of comparison. Emission by four vehicles with 1400, 2600, 3200, and 4800 cc engines, respectively, ranged from 19 to 28 ng km-1 for Pt, and from 102 to 150 ng km-1 for Pd. © 2011 Springer-Verlag.	en
heal.journalName	Microchimica Acta	en
dc.identifier.doi	10.1007/s00604-011-0724-y	en
dc.identifier.volume	176	en
dc.identifier.issue	1-2	en
dc.identifier.spage	235	en
dc.identifier.epage	242	en