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2-乙基己基膦酸单2-乙基己酯(HEH(EHP))是一种国内应用较为广泛的酸性磷类萃取剂,以往多侧重于分离稀土的研究,对稀土与非稀土元素的分离则报导较少。苏联Ромацива用HDEHP萃取柱色谱法分离和测定了合金钢中稀土,由于分离不完全,只能测定铈和钐。HEH(EHP)萃取柱色谱法广泛地应用于稀土分离,若同时能分离共存的非稀土元素,无疑是很有意义的。本文提出用磺基水杨酸(SSal),葡萄糖酸(Glu)和抗坏血酸
2-Ethylhexylphosphonic acid mono-2-ethylhexyl ester (HEH (EHP)) is a kind of acidic phosphorus extractant widely used in China. In the past, most studies focused on the separation of rare earths. Separation is reported less. USSR Ромацива Using HDEHP column chromatography for the separation and determination of rare earths in alloy steels, only cerium and samarium can be measured due to incomplete separation. HEH (EHP) extraction column chromatography widely used in rare earth separation, if at the same time be able to separate the coexistence of non-rare earth elements, no doubt makes sense. This paper proposes the use of sulfosalicylic acid (SSal), gluconic acid (Glu) and ascorbic acid