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- Title
Rapid Determination of Mercury in Plant and Soil Samples Using Inductively Coupled Plasma Atomic Emission Spectroscopy, a Comparative Study.
- Authors
Han, Fengxiang X.; Patterson, W. Dean; Yunju Xia; Sridhar, B. B. Maruthi; Yi Su
- Abstract
The objectives of this study were to simplify sample preparation and validate mercury detection in soil and plant samples using inductively coupled plasma atomic emission spectroscopy (ICP-AES). A set of mercury contaminated and mercury free soil and plant samples were digested and analyzed by ICP-AES, inductively coupled plasma mass spectrometry (ICP-MS), and cold vapor atomic absorption spectroscopy (CVAAS). Results show that mercury measurements in soil and plant samples using ICP-AES were in agreement with those analyzed using ICP-MS and CVAAS. The concentrations of mercury in soils and plant tissues determined by ICP-AES were 92.2% and 90.5% of those determined by CVAAS and ICP-MS, respectively. Digestion of soil samples with 4 M HNO3 and direct measurement by ICP-AES without reduction of Hg2+ to Hg0 gave a reasonable and acceptable recovery (92%) for determining Hg in soils. We conclude that ICP-AES with optimized conditions (addition of gold chloride, extension of washing time, linear working range, and selection of wavelength – 194 nm) resulted in reliable detection of mercury in environmental samples.
- Subjects
SOIL testing; INDUCTIVELY coupled plasma atomic emission spectrometry; INDUCTIVELY coupled plasma mass spectrometry; ATOMIC absorption spectroscopy; MERCURY &; the environment; SOIL pollution; ENVIRONMENTAL soil science; POLLUTION; MASS spectrometry
- Publication
Water, Air & Soil Pollution, 2006, Vol 170, Issue 1-4, p161
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1007/s11270-006-3003-5