Analytical Energy Dispersive X-Ray Fluorescence Measurements with a Scanty Amounts of Plant and Soil Materials
- 7 Downloads
Elemental evaluations in scanty powdered material have been made using energy dispersive X-ray fluorescence (EDXRF) measurements, for which formulations along with specific procedure for sample target preparation have been developed. Fractional amount evaluation involves an itinerary of steps; (i) collection of elemental characteristic X-ray counts in EDXRF spectra recorded with different weights of material, (ii) search for linearity between X-ray counts and material weights, (iii) calculation of elemental fractions from the linear fit, and (iv) again linear fitting of calculated fractions with sample weights and its extrapolation to zero weight. Thus, elemental fractions at zero weight are free from material self absorption effects for incident and emitted photons. The analytical procedure after its verification with known synthetic samples of macro-nutrients, potassium and calcium, was used for wheat plant/ soil samples obtained from a pot experiment.
Keywordsfluorescent X-rays elemental analysis macro-nutrients scanty amounts
Unable to display preview. Download preview PDF.
- 1.R. E. Van Grieken and A. A. Markowicz, A Handbook of X-ray Spectrometry, 2nd ed., New York, Marcel Dekker Inc., 362–430 (2002).Google Scholar
- 3.Anita M. Philos, Application of Fluorescent X-Ray Studies, Thesis, Punjabi University, Patiala, India (1990).Google Scholar
- 4.P. Kumar, Study of Environmental Effects on Macro-Elemental Concentrations in Plants with XRF Technique, M. Philos. Thesis, Punjabi University, Patiala, India (1992).Google Scholar
- 5.R. Mittal, K. L. Allawadhi, and B. S. Sood, Indian J. Agric. Sci., 64, 476–479 (1994).Google Scholar
- 6.Vandana and R. Mittal, Appl. Radiat. Isot., 54, 377–382 (2001).Google Scholar
- 8.K. Deep, M. Bansal, and R. Mittal, Arch. Appl. Sci. Res., 4, 1320–1328 (2012).Google Scholar
- 10.S. K. Sharma, Experimental Investigation of Photon Induced X-rays, Ph. D. Thesis, Punjabi University, Patiala, India (1986).Google Scholar
- 13.P. R. Adler, J. R. Cumming, and R. Arora, Chapter in Nature of Mineral Nutrient Uptake by Plants in Agricultural Sciences, Vol. 1, pp. 356–371; http://www.eolss.net/Eolss-sampleAllChapter.aspx
- 14.N. C. Brady and R. R. Weil, The Nature and Properties of Soil, Pearson Prentice Hall, Upper Saddle River NJ (2008).Google Scholar