Determination of Major and Trace-element Concentrations in Farmyard manure Using an Energy Dispersive X-Ray Fluorescence Spectrometer (EDXRF)

MATSUNAMI Hisaya, MATSUDA Kenji, MIURA Yoshinori

doi:10.20710/dojo.80.3_219

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Other Title

エネルギー分散型蛍光X線分析装置(EDXRF)を用いた家畜ふん堆肥中の肥料成分および微量元素の定量
エネルギーブンサンガタケイコウ Xセンブンセキソウチ EDXRF オモチイタカチクフンタイヒチュウノヒリョウセイブンオヨビビリョウゲンソノテイリョウ

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Abstract

We have developed a quick and simple method of determining major and trace-element concentrations in farmyard manure using an energy dispersive X-ray fluorescence spectrometer (EDXRF) employing Cartesian geometry and equipped with secondary targets. A total of 122 farmyard manure samples (75 cattle manure, 23 poultry manure, 24 swine manure) were used to obtain calibration curves for 24 elements (P, K, Ca, Mg, Fe, Cu, Zn, Mn, Mo, Pb, Cd, As, Na, Al, Ti, V, Rb, Sr, Ba, Ce, Cr, Co, Ni and Zr). A sample briquette obtained by applying pressure to manure powder packed into a plastic ring was used for the fluorescence X-ray analysis, and calibration curves showing good linearity for 20 of the elements (all except Cr, Co, Ni and Zr) were obtained. The values determined using EDXRF showed close agreement with those determined using ICP-AES/MS. These results indicated that the XRF technique is suitable for practical analysis of major and trace-element concentrations in farmyard manure. The time needed to measure five elements (P, K, Ca, Cu, Zn) was thirty minutes per sample, and it also appears possible to reduce the measurement time if the precision requested by the user is lower. Determination of nutrients and hazardous heavy metals in farmyard manure prior to its application can be a useful technique to avoid excess accumulation of these elements on farmland.

Journal

Japanese Journal of Soil Science and Plant Nutrition

Japanese Journal of Soil Science and Plant Nutrition 80 (3), 219-225, 2009

Japanese Society of Soil Science and Plant Nutrition

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