alexa Elemental Analysis of Nutrients in Dairy Manure by Automated X-ray Fluorescence Spectrometry
ISSN: 2380-2391

Journal of Environmental Analytical Chemistry
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Research Article

Elemental Analysis of Nutrients in Dairy Manure by Automated X-ray Fluorescence Spectrometry

Aicardo Roa-Espinosa1*, John L Markley2, Trang T Vu2, Evgeny Filatov1 and Samuel W Roa-Lauby1

1Soil Net, LLC, 560 Enterprise Ave., Belleville, WI 53508, USA

2Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Dr., Madison, WI 53706, USA

*Corresponding Author:
Aicardo Roa-Espinosa
Soil Net, LLC, 560 Enterprise Ave., Belleville, WI 53508, USA
Tel: 16084240098
E-mail: [email protected]

Received Date: March 18, 2016; Accepted March 26, 2016; Published Date: March 30, 2016

Citation: Roa-Espinosa A, Markley JL, Vu TT, Filatov E, Roa-Lauby SW (2016) Elemental Analysis of Nutrients in Dairy Manure by Automated X-ray Fluorescence Spectrometry. J Environ Anal Chem 3:173. doi:10.41722380-2391.1000173

Copyright: © 2016 Roa-Espinosa A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



We have determined that X-ray fluorescence (XRF) spectrometry can be used as a rapid and precise method for quantitative elemental analysis of macro and micro nutrients in dairy manure. The elements chosen for this study were N, P, K, Ca, Mg, S, Zn, Mn, Fe, Cu, Al, Na, B, and C. The wavelength-dispersive XRF spectrometer was calibrated by comparing its results with a panel of dried dairy manure samples with analyses from inductively coupled plasma (ICP) obtained from three independent certified laboratories. In addition, the XRF results for C, N, and S were compared with those from a high-temperature combustion (HTC) analyzer dedicated to measurements of these three elements. Then the performance of the calibrated XRF was tested against a separate panel of dairy manure samples collected at fifteen different sampling points at a manure processing plant. Subsamples from these samples were analyzed for the 14 elements of interest by a certified laboratory. The close agreement between the XRF results and those of the certified laboratory established that XRF can be used as a simple and precise method for the elemental analysis of dairy manure


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