Spectroscopy Letters ( IF 1.1 ) Pub Date : 2021-01-11 , DOI: 10.1080/00387010.2020.1867587 Magaly Pazos Mariño 1 , Elizabet Abad Peña 2 , Humberto Argota Coello 1 , Mario Simeón Pomares-Alfonso 3
Abstract
Drastic reduction in commercialization has favored the interest in lateritic and other minerals as rare earth elements source. In this study, inductively coupled plasma optical emission spectrometry was combined with concentration by ion exchange of lanthanum, scandium, and yttrium in complex composition minerals. Emission signals with highest signal-to-background ratio and lowest limit of detection were selected. Robustness of the method with the variation of plasma operating conditions was demonstrated. Limit of detections from 0.04 to 0.009 mg kg−1; precision, generally, lower than 6% and accuracy evaluated in certified reference materials in 87–95% range were obtained. Found concentrations in studied samples confirmed the usefulness of the method and high potential of studied minerals.
中文翻译:
电感耦合等离子体发射光谱法测定复杂地质样品中的镧,scan和钇
摘要
商业化的大幅度减少已经使人们对红土和其他矿物作为稀土元素的来源产生了兴趣。在这项研究中,电感耦合等离子体发射光谱与复杂成分矿物中镧,scan和钇的离子交换相结合。选择具有最高信噪比和最低检测限的发射信号。证明了该方法的鲁棒性随等离子体操作条件的变化而变化。检出限从0.04到0.009 mg kg -1 ; 通常,其精密度低于6%,并且在认证参考材料中获得的准确度在87-95%范围内。研究样品中发现的浓度证实了该方法的实用性和研究矿物的高潜力。