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高小霞等详细地研究了Eu(Ⅲ)-XO体系的极谱特性,用导数示波极谱法(ODP)检测下限可达5×10~(-8)M。本文应用了Eu(Ⅲ)-XO的吸附特性将Eu(Ⅲ)-XO在悬汞电极(HMDE)上富集,使测定Eu(Ⅲ)的灵敏度提高约2个数量级。
Xiaoxia Xia et al. Studied the polarographic characteristics of the Eu (III) -XO system in detail. The lower limit of detection by the derivative oscillopolarographic method (ODP) was 5 × 10 -8 M. In this paper, the Eu (Ⅲ) -XO adsorption characteristics of Eu (Ⅲ) -XO enrichment at the hanging mercury electrode (HMDE), so that the determination of Eu (Ⅲ) sensitivity increased by about 2 orders of magnitude.