Publication details
Comparison of energy dispersive X-ray fluorescence spectrometry, inductively coupled plasma optical emission spectrometry and laser ablation with plasma spectrometry in the elemental analysis of experimentally contaminated archive agricultural soils
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| Year of publication | 2007 |
| Type | Conference abstract |
| MU Faculty or unit | |
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| Description | Experimentally contaminated archive agricultural soils (Central institute for Supervising and Testing in Agriculture - UKZUZ, Brno, Czech republic) were used to compare capabilities of energy dispersive XRF (XEPOS, Spectro, Germany, Turboquant software) ICP-OES (Ultrace JY-170, Jobin Yvon Horiba, France) of solutions obtained by means of decomposition with HCLO4 and HF. Bioavailability of Pb, Zn, Cu, Ni, Cr was examined using sequential extraction procedures. Finally, LA-ICPOES (UP-213 MACRO New Wave, USA; JY-170) method was established for analysis of contaminated soils. Certified reference material of soil (GBW07406) was employed to verify reliability of methods. Analysis of pulverized samples by LA-ICP-OES or LA-ICP-MS poses advantages and shortcomings at the same time: possibility of preparation of calibration samples of arbitrary composition, matrix matching and sample dilution, while problems involve sometimes laborious preparation of suitable compact targets and their satisfactory homogeneity. Influence of type of pellet preparation procedure, laser parameters (fluence, irradiated spot area) on analytical performance of LA-ICP-OES of soils are discussed. |
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