Underestimation of chromium and zirconium in soils by hydrofluoric acid digestion and inductively coupled plasma-mass spectrometry
| Autor: | Noriyoshi Tsuchiya, Shin Ichi Yamasaki, Kazuhiko Kimura, Akira Takeda |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Zirconium
Soil test 010401 analytical chemistry Analytical chemistry Soil Science chemistry.chemical_element 04 agricultural and veterinary sciences Plant Science Mass spectrometry 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Chromium Hydrofluoric acid chemistry Soil water 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Perchloric acid Inductively coupled plasma mass spectrometry |
| Zdroj: | Soil Science and Plant Nutrition. 62:121-126 |
| ISSN: | 1747-0765 0038-0768 |
| DOI: | 10.1080/00380768.2016.1149437 |
| Popis: | The concentrations of chromium (Cr) and zirconium (Zr) in 503 soil samples collected from 78 site in Japan were determined by using two utterly different methods. The first was the relatively widely used inductively coupled plasma-mass spectrometry (ICP-MS) combined with digestion with hydrofluoric acid (HF) and perchloric acid (HClO4). The second was a non-destructive polarizing energy dispersive X-ray fluorescence spectrometric method (EDXRF) using pressed powder pellets. The Cr concentrations obtained by EDXRF were higher than those obtained by ICP-MS in ~75% of the samples. The EDXRF/ICP-MS ratios ranged from 0.48 to 9.65, and the geometric mean was 1.23. A typical example having big a difference in Cr content between the two methods was found in seven samples taken from a podzolic soil developed on sand dunes in northern Hokkaido. This sampling site is around 20 km from the northern edge of a serpentinite area that extends from north to south, forming the backbone mountain range of Hokkaido. ... |
| Databáze: | OpenAIRE |
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