摘要
平均结合自由能是土粒与离子间结合能的一个绝对指标,反映的是离子在土粒表面和本体溶液中的分配比例。结合能越大,离子被吸附的就越多,留在溶液中的就越少。平均结合自由能能够很好的反映土壤与离子之间的相互关系。通过对Langmuir吸附等温线法、离子活度法、Wien效应和DGT技术四种方法测量土壤粘粒与离子间的平均自由结合能介绍,比较四种方法的优劣性,从而得出最优的测量土壤粘粒与离子间能量的方法。
The mean free binding energy is the energy indicator between soil clay and ions,it reflects the ion distribution ratio in soil particle surface and bulk solution.The greater the binding energy is,the more ions are adsorbed,therefore the ions remain in solution are less.So the mean free binding energy can reflect the interaction between s soil clay and ions.By using Langmuir adsorption isotherm,ion activity,when Effect in suspension and DGT technique to determine the mean free binding energy between soil clay and ions,the advantages and disadvantages of the four methods are compared and the optimal measurement are developed.
出处
《广东化工》
CAS
2011年第6期215-216,209,共3页
Guangdong Chemical Industry
