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- Title
Rapid Determination of Mercury in Contaminated Soil and Plant Samples Using Portable Mercury Direct Analyzer without Sample Preparation, a Comparative Study.
- Authors
Kelly, John; Han, Fengxiang; Su, Yi; Xia, Yunjun; Philips, Valerie; Shi, Zhiqi; Monts, David; Pichardo, Sergio; Xia, Kang
- Abstract
The objective of this study was to determine the efficiency of a portable total mercury analyzer (OhioLumex RA-915+) in comparison with traditional analytical methods, such as inductively coupled plasma atomic emission spectrometry and cold vapor atomic absorption. The quick mercury analytical procedure with the direct mercury analyzer without sample pretreatment (such as sample digestion) was optimized for a variety of environmental samples, including contaminated soil and plant samples. The efficiency was evaluated using practical parameters, such as time required for analysis, sample amount, mercury species, accuracy, and precision/reproducibility, as well as using statistical analysis. Our results demonstrate that these three instrumental methods yielded similar mercury concentration values and statistical data, while the mercury direct analyzer had the advantages of not requiring for sample digestion and only requiring a small quantity of samples for distribution of mercury in a single root, a single root hair, and sub-regions of a single leaf of plants. These factors are used to justify use of the portable direct mercury analyzer under field conditions and validation of the results.
- Subjects
COMPARATIVE studies; SOIL pollution; INDUCTIVELY coupled plasma atomic emission spectrometry; STATISTICS; ANTHROPOGENIC soils
- Publication
Water, Air & Soil Pollution, 2012, Vol 223, Issue 5, p2361
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1007/s11270-011-1030-3