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首页> 外文会议>2017 International Conference on Intelligent Computing, Instrumentation and Control Technologies >A proposed automated instrument for separation of Rare Earth Elements Strontium by ion exchange chromatography
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A proposed automated instrument for separation of Rare Earth Elements Strontium by ion exchange chromatography

机译：一种通过离子交换色谱分离稀土元素和锶的自动仪器

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摘要

Rubidium (Rb), Strontium (Sr), and Rare Earth Elements (REE) along with their isotopie composition have a wide range of application in studies of Earth surface and Oceanographic processes. REEs are also useful to constrain high temperature fractionation and redox conditions during planetary evolution. Similarly, the decay of long-lived radionuclide 87Rb to stable 87Sr has also been applied to the radiometric age determinations of rocks and minerals. However, these elements are not in pure form naturally and must be separated to their pure form from matrices before accurate measurements using mass spectrometric techniques because of mass interference. Although separation protocol by ion chromatography is well established, it requires significant manual efforts and time. Here, we are proposing an automated equipment to carry out such a separation procedure for Sr and REE fractions from aqueous samples. The equipment follows the separation protocol and provision of three simultaneous column separation units to increase the sample throughput. It comprises of syringe pumps, multi position valves, fraction collectors, appropriate column and integrated controlled software. Once the equipment is calibrated, it can carry out sequence of samples with minimal user intervention.
机译：id（Rb），锶（Sr）和稀土元素（REE）及其同位素组成在研究地球表面和海洋学过程中具有广泛的应用范围。稀土元素还可用于限制行星演化过程中的高温分馏和氧化还原条件。同样，长寿命放射性核素87Rb衰减为稳定的87Sr也已应用于岩石和矿物的辐射年龄确定。但是，这些元素并不是天然的纯净形式，由于质量干扰，在使用质谱技术进行精确测量之前必须将它们从基质中分离出来。尽管已经建立了通过离子色谱分离的方案，但是它需要大量的人工和时间。在这里，我们提出了一种自动化设备来对含水样品中的Sr和REE馏分进行分离。该设备遵循分离规程并提供三个同时的色谱柱分离单元，以提高样品通量。它包括注射泵，多位阀，馏分收集器，合适的色谱柱和集成的受控软件。设备校准完毕后，就可以在用户最少干预的情况下进行采样序列。

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