Determination of five species of aluminum(total AlT,acid soluble Alr,monomeric Ala,inorganic monomeric Ali,organic monomeric Alo) in acid and alkali extraction solutions of soil samples by differential adsorption chronopotentiometry(DACP) with alizarin red S(ARS) is presented in this paper.
报道了茜素红S-微分吸附计时电位法分别在酸性和碱性条件下直接检测土壤浸提液中的无机单核铝[Ali]和总单核铝[Ala]浓度,并用该法测定了酸消化浸提液中的总铝[AlT],由[Ala]-[Ali]间接得到有机单核铝[Alo],[AlT]-[Ala]得到酸溶态铝[Alr],从而实现了土壤浸提液中5种铝形态的电化学测定。
