Estimation of platinum in environmental water samples with solid phase extraction technique using inductively coupled plasma mass spectrometry

Abstract

A solid phase extraction technique for the determination of platinum(IV) at trace levels by inductively coupled plasma mass spectromA solid phase extraction technique for the determination of platinum(IV) at trace levels by inductively coupled plasma mass spectrometry (ICP-MS) was developed. The method was based on retention of platinum in a sample on silica gel modified with aminepropyl groups. The retention of platinum(IV) from the sample solution and the recovery of platinum with 1.0 mol L−1 thiourea solution were quantitative. The relative standard deviation (RSD) was calculated as 5% (n = 7) at the 10 ng L−1 level. The enrichment factor was found to be (50-fold) for 250 mL of water sample. Under optimum conditions, the method detection limit (MDL) was found to be 1 ng L−1 for platinum in water matrices. Recoveries of Pt from spike addition to atmospheric water samples were quantitative (80–95%). The present method was used for the determination of platinum in precipitation, throughfall and runoff water samples.

Development of sensitive determination method for platinum in geological materials by carbon slurry sampling graphite furnace atomic absorption spectrometry

“…It shows that the LOD and enrichment factor of our method are found to be comparable with previously reported methods, especially for the GF AAS technique [7,14,21]. In the case of [16,19,20] very low LODs, even several orders of magnitude lower than for some others, can result from the sensitivity of the ICP MS technique. However, the proposed method is simple and easy to perform using the classical GF AAS equipments.…”

“…For this reason a separation/ preconcentration stage is often applied to remove matrix interferences and preconcentrate the analyte to a level at which it can be reliably determined. Various preconcentration approaches, such as: ion exchange [4,6,9,10,13], precipitation and coprecipitation [4,13], extraction techniques [4,[13][14][15][16][17][18][19][20][21][22] and biosorption [13,23] have been described in the literature for platinum separation from environmental samples. However, one of the most useful preconcentration treatments is adsorption onto solid adsorbents.…”

The enrichment of Pt(iv) ions on Dowex-1X8 and Purolite S-920 ion exchangers from aqueous solutions and their determination using slurry sampling and direct solid sampling graphite furnace atomic absorption spectrometry techniques

“…causing asthma, allergy, rhinoconjunctivitis and other serious health problems. 2 For this reason, it is necessary to routinely monitor the concentration levels of platinum in the environment and in biological samples. The most widely used methods for the determination of platinum in environmental samples include graphite furnace atomic absorption spectrometry (GFAAS), 3 stripping voltammetry 4 and inductively coupled plasma mass spectrometry (ICP-MS).…”

Monuments as sampling surfaces of recent traffic pollution

“…The mobility of aerosol and its content of PGE has been generally investigated on solid surfaces, mostly of environmental interest, e.g. snow, leaves, gully pot, soil, sediment and road dust (Smichowski et al 2008;Dubiella-Jackowska et al 2009;Wiseman and Zereini 2009). Outdoor monuments, particularly the widespread natural and artificial stone materials, may represent a new frontier.…”