首页> 外文期刊>Journal of mass spectrometry: JMS >Flavone as a novel matrix for the matrix-assisted laser desorption/ionisation analysis of lanthanide and transition metal salts
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Flavone as a novel matrix for the matrix-assisted laser desorption/ionisation analysis of lanthanide and transition metal salts

机译:黄酮作为基质辅助激光解吸/电离分析的新型基质镧系元素和过渡金属盐

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摘要

The mass spectral analysis of metal salts, especially lanthanide and transition metal salts, can be challenging. Although getting information on the metal present is usually straightforward, obtaining information on the correct oxidation state and anion composition is challenging. Many ionisation techniques have some redox component to the ionisation process, which commonly results in changing the oxidation state of the metal and the associated loss of ligand and anion information. We present here a simple method for negative ion matrix-assisted laser desorption/ionisation mass spectrometry using the non-acidic flavonoid flavone as a novel matrix. This results in reliable information on the oxidation state of the metal as spectra are dominated by anion adduct ions with very little (typically no) redox processes occurring.
机译:金属盐,尤其是镧系元素和过渡金属盐的质谱分析可能具有挑战性。 尽管在存在于存在的金属的信息通常是简单的,但是获得有关正确氧化状态和阴离子组合物的信息是挑战性的。 许多电离技术对电离过程具有一些氧化还原组分,这通常导致改变金属的氧化状态和相关的配体和阴离子信息的丧失。 我们在此提出了一种使用非酸性黄酮黄酮作为新基质的负离子矩阵辅助激光解吸/电离质谱法的简单方法。 这导致有关金属的氧化状态的可靠信息,因为光谱由阴离子加合离子主导,并且存在很少(通常是不)氧化还原过程。

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