Comparison and development of new extraction procedures for 239Pu, Ca, Fe and Cu organic complexes in soil

Szabó, Gyula; Wedgwood, Angela J.; Bulman, Robert A.

doi:10.1016/0265-931x(91)90060-s

Cited by 9 publications

(1 citation statement)

References 11 publications

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“…Instead, TMCS and the structurally similar triethylchlorosilane (TECS) have mainly been used to investigate a variety of metal complexes in soil, with the aim of either improving the solubility of soil samples to extract these complexes or to investigate the nature of their binding in soil. The TMCS silylation procedures involved stirring dried soil samples for 4 h at 60 °C. , The only other application of TMCS to HS samples was by Dec et al (1997) who used silylation to investigate the nature of binding between soil and xenobiotic chemicals. HS produced from a 13 C depleted plant material was incubated in soil with 13 C anilazine, a fungicide, for 16 weeks at 25 °C.…”

Section: Silylation Of Nommentioning

confidence: 99%

Molecular Tagging for the Molecular Characterization of Natural Organic Matter

York

Bell

2020

Environ. Sci. Technol.

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Natural organic matter (NOM) is the product of microbial and abiotic decay of plant and animal remains in terrestrial and aquatic ecosystems. On a molecular level, NOM is a complex mixture of organic molecules, of which the vast majority of structures are unknown. By identifying these molecules, our understanding of the many functions of NOM could be greatly enhanced. However, given that they are chromatographically inseparable and number in the thousands, traditional analytical techniques have proven unable to achieve this goal. A promising approach to enumerate functional groups and elucidate molecular structures within NOM is based on a combination of molecular tagging and high resolution spectroscopic techniques, such as nuclear magnetic resonance spectroscopy and mass spectrometry. Molecular tagging involves the selective modification of particular functional groups, inserting nuclei to act as reporters on their surrounding chemical environment. This allows examination of only the tagged molecules within NOM, thereby reducing the complexity of the mixture. In this review, the effectiveness of molecular tagging methods incorporating carbon, silicon, nitrogen, phosphorus, and deuterium into NOM are discussed. Some potential tagging methods which have not yet been applied to NOM are also presented.

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Section: Silylation Of Nommentioning

confidence: 99%