测定有机锗营养液中有机锗与无机锗含量的实验方法

[目的]建立测定有机锗营养液中有机锗与无机锗含量的新方法。[方法]利用阴离子交换树脂装填的色谱柱，分离有机锗营养液中有机锗与无机锗，洗脱液引入石墨炉原子吸收分光光谱仪进行测定，同时测定有机锗与无机锗。[结果]选定了最佳分离和测量条件，无机锗测定相对标准偏差为3．25％～4．93％，回收率为85．0％～105．0％。有机锗测定相对标准偏差为2．85％～8．04％，回收率为86．5％～97-3％。[结论]该法灵敏度、精密度均能满足检测工作的需要。适用于一般有机锗营养液中有机锗与无机锗的测定。

Determination of Organic and Inorganic Germanium in Nutrient Solution

[Objective] To establish a new method for determination organic and inorganic germanium in the nutrient solution.[Methods] Inorganic germanium was separated from organic germanium in the nutrient solution by the anion-exchange chromatography.The mixed eluant of the organic and inorganic germanium were detected by graphite atomic absorption spectrometry simultanously.[Results] Under the best conditions of the separation and determination,the sensitivity and accuracy were suitable.The recovery of inorganic ge...