title: [Simultaneous determination of trace platinum, palladium and rhodium in environmental dust samples by ICP-MS after open-digestion].
abstract: A sensitive method for simultaneous determination of Pt, Pd and Rh in dust samples by ICP-MS after open-digestion was developed. The digestion method for the samples and conditions for measurement for ICP-MS were studied in detail. Aquaregia was proved to be a better solvent for the digestion of dust samples. Under the optimum conditions, the limits of detection of Pt, Pd and Rh were 0.48, 4.22 and 0.42 ng x g(-1), respectively. The proposed method was applied to the real sample analysis, and good recoveries were obtained. The recoveries of Pt, Pd and Rh were found to be between 87.6%-88%, 85.2%-87.8%, and 93%-95%, respectively.
authors.affiliation: Center of Analysis and Testing, Capital Normal University, Beijing, China.
authors.forename: Yan-zhi
authors.initials: YZ
authors.lastname: Shi
authors.forename: Run-juan
authors.initials: RJ
authors.lastname: He
authors.forename: Juan
authors.initials: J
authors.lastname: Wang
authors.forename: Ruo-hua
authors.initials: RH
authors.lastname: Zhu