Publications by authors named "Laurinda Nyarko"
Article Synopsis
- Quinones are essential for redox reactions in natural organic matter but have not been identified in complex environmental samples.
- A new chemical tagging method that utilizes a Michael addition reaction between quinones and thiols in cysteine and cysteine-containing peptides was developed to identify these compounds.
- This study successfully showed that quinones can be tagged in complex environments, allowing for better understanding of their roles in redox chemistry and the composition of natural organic matter.
Understanding the chemical nature of soil organic carbon (SOC) with great potential to bind iron (Fe) minerals is critical for predicting the stability of SOC. Organic ligands of Fe are among the top candidates for SOCs able to strongly sorb on Fe minerals, but most of them are still molecularly uncharacterized. To shed insights into the chemical nature of organic ligands in soil and their fate, this study developed a protocol for identifying organic ligands using ultrahigh-performance liquid chromatography-high-resolution tandem mass spectrometry (UHPLC-HRMS/MS) and metabolomic tools.
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