15n标记亚铁氰化钾的制备及其示踪研究

T. Dimitrova, F. Repmann, D. Freese
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引用次数: 1

摘要

同位素标记被广泛用于追踪常见环境污染物的去向和循环。许多标记的材料在商业上是买不到的,根据物质的复杂性、标签和富集水平,定制合成是昂贵的。为了满足相关示踪剂实验的要求,降低成本,开发了一种简单、直接、经济高效的制备高富集、15n标记的亚铁氰化钾(K4[Fe(C15N)6]*3H2O)的方法。在这种情况下,15N标签被用来量化土壤-植物系统中的铁氰化物解毒(生物降解和/或转化)。用15n标记的氰化钾(KC15N)和亚铁铁盐进行了合成。广泛的定性和定量分析表明,该产品在功能和元素成分上与商业上未标记的K4[Fe(CN)6]*3H2O完全相同,其15N的富集程度与用于合成的KC15N完全相同。为了研究它们在不同环境中的行为和命运,可以用类似的方法合成其他标记铁或金属氰化物配合物。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Preparation of 15N-labeled Potassium Ferrocyanide for Tracer Studies
Isotopic labels are widely used to trace the fate and cycling of common environmental contaminants. Many of the labeled materials are not available commercially and, depending on the complexity of the substance, the label and the enrichment level, custom syntheses are costly. A simple, straightforward, and cost effective method for the preparation of a highly enriched, 15N-labeled potassium ferrocyanide (K4[Fe(C15N)6]*3H2O) has been developed to meet the requirements of related tracer experiments and minimize their costs. In this case, the 15N label was used to quantify iron cyanide detoxification (biodegradation and/or transformation) within soil-plant-systems. 15N-labeled potassium cyanide (KC15N) and a ferrous iron salt have been used for the synthesis. Extensive qualitative and quantitative analyses showed a product, entirely identical in its functional and elemental components to commercial non-labeled K4[Fe(CN)6]*3H2O and in its 15N enrichment to the KC15N used for its synthesis. To investigate their behavior and fate in various environmental compartments, other labeled iron or metal cyanide complexes might be synthesized in analogous manner.
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