摘要
研究了一个测定花岗岩风化壳中REE存在形态的方法。以0.2 mol/L MgCl_2,2.5 mol/LHCl,0.5 mol/L NaOH及含15%H_2O_2的2.5 mol/L HCl连续提取风化壳试样中的稀土。经X射线衍射、红外光谱及剖面试样测试,论证了每一提取态的内涵,提出了花岗岩风化壳中非原生矿物相稀土存在活性态、铁铝共沉淀态和有机结合态的新认识。
The determination of REE speciation in weathering crust of granites was researched. TheREE in weathering crust was successively isolated by 0.2mol/L MgCl_2, 2.5mol/L HCl, 0.5mol/L NaOH and 2.5mol/L HCl including 15 percent H_2O_2. The connotation of every specieswas analyzed by means of X-ray diffraction, infrared absorption spectrum and measurementof weathering crust samples. New knowledge that REE exists as active, iron aluminiumcoprecipitation and combination with organic compounds was put forward.
出处
《分析测试学报》
CAS
CSCD
1993年第4期21-25,共5页
Journal of Instrumental Analysis
基金
国家自然科学基金
关键词
稀土
形态
花岗岩风化壳
Rare earth
Species
weathering crust of granites
