Trace elements and REEs in rivers and lakes of the upper Yana River, Northern Eurasia

The helicopter-based sampling campaign took place from 22 to 24 August, 2017. All samples were sealed with Parafilm tape and stored in the field at temperatures between 5°C and 10°C in cool place, in organic topsoil, and in the laboratory, at 4°C, before the analysis. Samples for trace elements were pre-filtered through 0.22 μm cellulose acetate membrane filters before analysis. Trace elements, including REEs, were measured at the Institute of Microelectronics Technology and High Purity Materials, RAS (Chernogolovka, Russia) using ICP-MS/AES.

本次依托直升机开展的采样工作于2017年8月22日至24日进行。本次采集的样品均采自有机表层土壤，所有样品使用Parafilm封口膜（Parafilm tape）密封，野外暂存于5℃至10℃的阴凉环境中，随后在实验室以4℃条件保存直至分析。微量元素样品在分析前需经0.22 μm醋酸纤维素膜滤器预过滤。包括稀土元素（REEs）在内的各类微量元素，均在俄罗斯科学院微电子技术与高纯材料研究所（俄罗斯切尔诺戈洛夫卡）采用电感耦合等离子体质谱/原子发射光谱（ICP-MS/AES）技术完成检测。