Górecka H, Chojnacka K, Górecki H
Institute of Inorganic Technology and Mineral Fertilizers, Wroclaw University of Technology, I-26, ul. Smoluchowskiego 25, 50-372 Wroclaw, Poland.
Talanta. 2006 Dec 15;70(5):950-6. doi: 10.1016/j.talanta.2006.05.061. Epub 2006 Jun 27.
In the present paper, the elemental composition of wood ashes obtained by the combustion of wood in a fireplace was determined with the use of ICP-MS and ICP-OES techniques. Wood ashes may find a potential application as deacidifying agents and soil conditioners, since they contain calcium (in the form of CaCO(3) and CaO), potassium (in the form of K(2)SO(4) and K(2)CO(3)) and significant levels of micronutrients. However, if applied to soil, it is important to assess the bioavailability of particular elements to plants. This process can be simulated by proper extraction procedures. Various species of wood were combusted in a firestove in a single-family house. The ashes underwent multielemental analyses with ICP-MS Varian Ultra Mass 700 (Australia) and ICP-OES Vista-MPX from Varian (Australia) in order to determine the content of macro- and micronutrients as well as toxic elements. Ashes were also extracted with solutions of 0.1M NaNO(3) and water in order to simulate the process of elemental transfer from ash (used as soil conditioner) to soil solution and consequently to plants. Also, the environmental impact of ash supplementation to soil was assessed in these experiments. Soil was supplemented with 0-20% of ash. After elution, the eluent underwent multielemental analysis by ICP-MS and ICP-OES techniques to determine the content of macronutrients (P, K, Mg), micronutrients (Fe, Mn, Co, Mo, Zn, Cu and Ti) and toxic elements (Hg, Pb, As and Cd). It was shown that fireplace ashes can be applied for deacidification of homestead gardens. Ash may be described as a valuable soil conditioner with N:P:K formula 0:1:3. It is concluded therefore that in order to achieve full fertilization, additional supplementation with nitrogen fertilizer would be necessary.
在本论文中，利用电感耦合等离子体质谱法（ICP-MS）和电感耦合等离子体发射光谱法（ICP-OES）测定了在壁炉中燃烧木材所得到的木灰的元素组成。木灰可能作为脱酸剂和土壤改良剂有潜在应用价值，因为它们含有钙（以碳酸钙和氧化钙的形式）、钾（以硫酸钾和碳酸钾的形式）以及大量的微量营养元素。然而，如果将其施用于土壤，评估特定元素对植物的生物有效性很重要。这个过程可以通过适当的提取程序来模拟。在一栋独栋房屋的炉灶中燃烧了各种木材。使用澳大利亚瓦里安公司的ICP-MS 700型超高分辨质谱仪和瓦里安公司（澳大利亚）的ICP-OES Vista-MPX对木灰进行多元素分析，以确定常量和微量营养元素以及有毒元素的含量。还用0.1M硝酸钠溶液和水对木灰进行提取，以模拟元素从灰（用作土壤改良剂）转移到土壤溶液进而到植物的过程。此外，在这些实验中还评估了向土壤添加木灰对环境的影响。向土壤中添加0-20%的木灰。洗脱后，通过ICP-MS和ICP-OES技术对洗脱液进行多元素分析，以确定常量营养元素（磷、钾、镁）、微量营养元素（铁、锰、钴、钼、锌、铜和钛）以及有毒元素（汞、铅、砷和镉）的含量。结果表明，壁炉灰可用于家庭花园的脱酸。木灰可被描述为一种氮磷钾比例为0:1:3的有价值的土壤改良剂。因此得出结论，为了实现完全施肥，有必要额外补充氮肥。
