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Acid dissolution methods for heavy metals determination in pine needles.
- Source :
-
Environmental Chemistry Letters . Nov2003, Vol. 1 Issue 3, p191-195. 5p. - Publication Year :
- 2003
-
Abstract
- Microwave digestion procedures using HNO3, HNO3+H2O2, HNO3+HClO4, HF mixtures and dry ashing with HF were investigated for heavy metals analysis by either inductively coupled plasma-optical emission spectroscopy (ICP-OES) or ICP-mass spectrometry (ICP-MS) in pine needles. The HF digestion procedures gave about 1.5 times higher values than a mixture of HNO3+H2O2 alone. For Ti determination in needles, the HF procedure using dry ashing is thus recommended. The mean concentrations amounted to 900 mg/kg for Fe and 21.8 mg/kg for Ti in needles collected at an area polluted by a stainless steel works. Those concentrations were 10.6 and 4.3 times higher than in needles collected at an area nearby a pulp mill complex (84.5 mg/kg Fe and 5.0 mg/kg Ti). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16103653
- Volume :
- 1
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Environmental Chemistry Letters
- Publication Type :
- Academic Journal
- Accession number :
- 15205043
- Full Text :
- https://doi.org/10.1007/s10311-003-0038-3