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本文研究了铕（Ⅲ）在乙二酸双（α─氨基乙基）醚四乙酸（简称ＧＢＥＴＡ）－ＮａＣｌ介质中的极谱行为及测定最佳条件，ＧＢＥＴＡ浓度为０．０１ｍｏｌ／Ｌ，ＮａＣｌ浓度为０．４ｍｏｌ／Ｌ，通Ｎ２除Ｏ２５ｍｉｎ。最低检出限为４．２×１０－７ｍｏｌ／Ｌ，测定了发光材料ＢａＦＣｌ（Ｅｕ）中Ｅｕ（Ⅱ）的含量。
In this paper, the polarographic behavior of europium (Ⅲ) in oxalic acid bis (α-aminoethyl) ether-tetraacetic acid (GBETA) -NaCl and its optimum conditions were studied. The concentration of GBETA was 0.01mol / Concentration of 0.4mol / L, except N2 through O25min. The minimum detection limit was 4.2 × 10-7mol / L, and the content of Eu (Ⅱ) in the luminescent material BaFCl (Eu) was measured.