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Abstract <p>The work reports the multielemental characterization of topsoil samples from the area of the spent 'French mines' situated at Mt. Medvednica, near Zagreb, Republic of Croatia. Determination of the selected analytes was carried out by means of inductively coupled plasma optical emission spectrometry in three series of extracts that were prepared with deionized water, Mehlich-3 solution, and <i>aqua regia</i>. Results show that, with careful work, about 20 various chemical elements can be quantified in soil extracts prepared with deionized water. Also, it is shown that Mehlich-3 solution can be applied for the determination of many trace elements and not only for a set of 10 nutrients that were originally intended. A comparison of the efficiencies of the extraction methods was done by calculation of the ratios of the mass fraction values obtained by the three extraction reagents. Since weaker reagents allow the extraction of portions of elements that are relatively weakly bound to soil particles, the comparison of the mass fraction ratio values allows an assessment of the mobility of a metal(loid). Topsoil in the area of the spent mine is overloaded with metal(loid)s, as follows (the highest measured mass fractions values extracted with deionized water/Mehlich-3/<i>aqua regia</i> are given in brackets): As&#xa0;(0.521/1.44/337), Cd (0.011/0.911/4.24), Co (0.476/6.45/133), Cu (1.691/78.2/1227), Ni (0.851/6.81/152), Pb (4.40/893/11540), and Zn (1.25/38.4/817 mg/kg).</p>

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Multielemental Analysis of Soil from a Historical Mine Area by Inductively Coupled Plasma Optical Emission Spectrometry

  • 期刊论文

  • 发表日期：

    2025年11月11日

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  • Ivan Perković,
  • Karlo Herceg,
  • Darko Bakšić,
  • Nikola Pernar,
  • Vibor Roje

摘要

Abstract

The work reports the multielemental characterization of topsoil samples from the area of the spent 'French mines' situated at Mt. Medvednica, near Zagreb, Republic of Croatia. Determination of the selected analytes was carried out by means of inductively coupled plasma optical emission spectrometry in three series of extracts that were prepared with deionized water, Mehlich-3 solution, and aqua regia. Results show that, with careful work, about 20 various chemical elements can be quantified in soil extracts prepared with deionized water. Also, it is shown that Mehlich-3 solution can be applied for the determination of many trace elements and not only for a set of 10 nutrients that were originally intended. A comparison of the efficiencies of the extraction methods was done by calculation of the ratios of the mass fraction values obtained by the three extraction reagents. Since weaker reagents allow the extraction of portions of elements that are relatively weakly bound to soil particles, the comparison of the mass fraction ratio values allows an assessment of the mobility of a metal(loid). Topsoil in the area of the spent mine is overloaded with metal(loid)s, as follows (the highest measured mass fractions values extracted with deionized water/Mehlich-3/aqua regia are given in brackets): As (0.521/1.44/337), Cd (0.011/0.911/4.24), Co (0.476/6.45/133), Cu (1.691/78.2/1227), Ni (0.851/6.81/152), Pb (4.40/893/11540), and Zn (1.25/38.4/817 mg/kg).