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我们曾用D_(290)大孔强碱性阴离子树脂与偶氮氯膦Ⅲ(CPA-Ⅲ)水溶液,经搅拌制得偶氮氯膦Ⅲ螯合形成树脂,以分离富集岩石中微量稀土元素,再用ICP光电直读光谱法测15种稀土元素的分量,结果满意,本文研究了CAP-Ⅲ螯合形成树脂的基本特性。 1 试剂与仪器 15种稀土元素的标准溶液,均由光谱纯稀土氧化物配成1mg/mL的标准储备液,D_(290)大孔强碱性阴离子树脂(南开大学);偶氮氯膦Ⅲ(分析纯)。
We have used D_ (290) macroporous strong base anion resin and chlorophosphonazo Ⅲ (CPA-Ⅲ) aqueous solution, obtained by mixing chlorophosphonazo Ⅲ chelating resin to separate and enrich the trace rare earth elements in rocks , And then the ICP optical direct reading spectrometry 15 kinds of rare earth elements, with satisfactory results, this paper studies the CAP-Ⅲ chelate resin forming the basic characteristics. 1 Reagents and Instruments 15 kinds of rare earth elements of the standard solution, the spectrum of rare earth oxides were dubbed 1mg / mL standard stock solution, D 290 macroporous strongly basic anion resin (Nankai University); chlorophosphonazo III (Analytical grade).