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Simultaneous and multi-elemental method was optimized to determine 35 elements in 274 coarse and fine aerosol samples by using HR-ICP-MS. The procedures were validated. Measurement uncertainties of all elements including sampling uncertainties were calculated by applying bottom-up approach. The average recoveries obtained for each element ranged between 79% and 129% using NIST SRM 1648, urban dust...
This paper presents the phase formations and magnetic properties of Co-doped TiO 2 synthesized by the colloidal and ammonium nitrate melt techniques (ANMT). The phase formations and ferromagnetic properties were studied with XRD and SQUID magnetometry. Crystallization of the TiO 2 rutile lattice was completed at 1000°C and that was preserved during annealing up to 1300°C. For the samples...
In the present work, speciation of selenium in dill (Anethum graveolens L.), supplemented with sodium selenite during its growth, was performed using ion pairing reversed phase and cation exchange chromatography. Heptafluorobutyric acid (HFBA) was used as the ion-pairing agent in reversed phase chromatography. In cation exchange chromatography, two different gradient programs were employed for the...
A novel analytical technique has been suggested for determination of Pb using formation of PbH 4 (g) by chemical reduction and its subsequent spectrophotometric measurement in IR region, using the peak at 1821.4cm −1 . The range of measurements is 1.0–30.0mgl −1 using a sample of 1.0ml in flow injection mode. The 3σ limit of detection is 0.28mgl −1 . The method has...
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