Sunitha, M and Sahrawat, K L and Wani, S P (2015) Comparative Evaluation of Inductively Coupled Plasma–Optical Emission Spectroscopy and Atomic Absorption Spectrophotometry for Determining DTPA-Extractable Micronutrients in Soils. Communications in Soil Science and Plant Analysis, 46. pp. 627-632. ISSN 0010-3624 (Unpublished)
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Abstract
A study was conducted for comparative evaluation of atomic absorption spectrophotometry (AAS) and inductively coupled plasma–optical emission spectroscopy (ICP-OES) for determining extractable zinc (Zn), copper (Cu), manganese (Mn), and iron (Fe) in sixty diverse soil samples having a wide range in pH and organic carbon (C). The results were significantly affected by the method of analysis and soil type but generally did not follow a definite trend. Results for extractable Fe in Alfisol samples were significantly greater when using ICP-OES than AAS; and the results for Zn, Cu, and Mn were not significantly different for the two methods. For Vertisol samples, the results for extractable Cu were significantly greater by ICP-OES than by AAS, whereas extractable Fe and Zn were significantly greater by AAS than by ICP-OES, and the results for Mn were not significantly different for the two methods. The results are discussed relative to soil type and differences in soil organic carbon and pH of the samples used in the study.
| Item Type: | Article |
|---|---|
| Divisions: | RP-Resilient Dryland Systems |
| CRP: | CGIAR Research Program on Dryland Systems |
| Uncontrolled Keywords: | Alfisols, extractable Fe, Cu, Mn, and Zn, soil testing, Vertisol and associated soils |
| Subjects: | Others > Soil Science Others > Agriculture-Farming, Production, Technology, Economics |
| Depositing User: | Mr B K Murthy |
| Date Deposited: | 10 Mar 2015 10:30 |
| Last Modified: | 18 Aug 2016 04:38 |
| URI: | http://oar.icrisat.org/id/eprint/8590 |
| Official URL: | http://dx.doi.org/10.1080/00103624.2015.1005226 |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | UNSPECIFIED |
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