【摘要】 随着多接收等离子体质谱仪分析测试技术的发展,Fe同位素得到了非常广泛的应用,尤其在地球科学中,铁同位素应用于各种高温(如地幔、地壳的部分熔融、岩浆分异等)、低温(风化、沉积等)地质作用过程。目前,铁同位素分析测试方法根据进样方式不同可以分为溶液进样和飞秒激光剥蚀进样联用多接受等离子体质谱(即SN-MC-ICP-MS和FSLA-MC-ICP-MS)。研究者大多采用溶液法,该方法需要对样品进行复杂的化学前处理,但测试的精度较好;传统纳米激光器在剥蚀过程中的热效应会导致元素分馏,飞秒激光器可以大大减小由于热效应导致的元素分馏,提高离子的传输效率和灵敏度。本文综述了铁同位素测试方法的研究进展,包括样品溶解、化学分离、质量歧视校正、干扰校正及飞秒激光分析铁同位素的良好前景。更多还原

【Abstract】 With the development of multi-receiver plasma mass spectrometer analysis and testing technology, Fe isotope has been widely used, especially in earth science, iron isotope is applied to various high temperatures(such as mantle, partial melting of the earth’s crust, magma differentiation). Etc.), low temperature(weathering, sedimentation, etc.) geological processes. At present, the iron isotope analysis test method can be divided into solution injection and femtosecond laser ablation injection combined with multi-acceptance plasma mass spectrometry( SN-MC-ICP-MS and FSLA-MC-ICP-MS) according to different injection methods. Most of the researchers use the solution method, which requires complex chemical pretreatment of the sample, but the accuracy of the test is better. The thermal effect of the traditional nano laser in the ablation process leads to fractional distillation of elements, and the femtosecond laser can greatly reduce the thermal effect. The element is fractionated to improve the efficiency and sensitivity of ion transport. This paper reviews the research progress of iron isotope test methods, including sample dissolution, chemical separation, mass discrimination correction, interference correction and femtosecond laser analysis of iron isotope.更多还原