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本文研究用离子选择电极,连续地同时监测无土壤种植营养液中营养元素如Na~+、K~+、NO_3~-和Ca~(++)等。浓度的计算乃基于计算机求解这些离子选择电极电位和有关反映电极特性及干扰离子影响的参数组成的联立方程组。通过对模拟营养液和现场采集的生产溶液长期连续监测表明理论和实验结果一致。
In this paper, with the use of ion selective electrode, the nutrient elements such as Na ~ +, K ~ +, NO_3 ~ - and Ca ~ (++) in non-soil nutrient solutions were continuously and simultaneously monitored. Concentration calculations are based on a computer-generated simultaneous equations consisting of these ion-selective electrode potentials and parameters that reflect the electrode characteristics and the effects of interfering ions. Long-term continuous monitoring of the simulated nutrient solution and the production solution collected in the field shows that the theoretical and experimental results are consistent.