Abstract
The accurate and precise determination of element concentrations and isotope ratios by mass spectrometry relies on the ability of a geochemist to quantitatively separate target elements, or analytes, from sample matrices. Column chromatography provides a robust and user-friendly method to achieve this for a wide range of elements. The technique utilizes a ‘stationary phase’ of organic resin that shows variable affinities for the elements being studied. In this contribution, we discuss the structure and operation of the two most commonly-used types of resin, namely the traditional cation and anion exchange resins and newer extraction chromatographic materials, such as DGA and LN-spec resin. We then explore their applications to a broad spectrum of elements and sample types. In addition, we present new distribution coefficients for 38 elements utilizing nitric acid solutions with strong cation exchange resin.
Published Version
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