CAJ | 학술논문

利用螯合离子色谱法，在线有选择性地将样品中的阴离子、碱金属、碱土金属、铝、铁及其它过渡金属离子除去，同时浓缩富集待测的痕量稀土离子。再用草酸和二甘醇酸的梯度淋洗体系，将14种稀土金属离子分离，检测限可达ngml-1级，并成功地应用于土壤及农作物中稀土含量的测定。
이용오합리자색보법，재선유선택성지장양품중적음리자、감금속、감토금속、려、철급기타과도금속리자제거，동시농축부집대측적흔량희토리자。재용초산화이감순산적제도림세체계，장14충희토금속리자분리，검측한가체ngml-1급，병성공지응용우토양급농작물중희토함량적측정。
In this paper, the contents of trace lanthanides in soil andplants were determined by chelation ion chromatography. Lanthanides were concentrated on-line while eliminating bulk quantities of alkali, alkaline earth metal, aluminum, iron and other transition metals from sample matrice. Then, they were separated by a concentration gradient of oxalic acid and diglycolic acid. The method detection limits (signal-to-noise ratio 3∶1) were at ng ml-1 levels.