Mid-infrared spectra predict nuclear magnetic resonance spectra of soil carbon

Abstract

Nuclear magnetic resonance (NMR) spectroscopy is a powerful technique for characterising the complex chemistry of soil organic carbon (SOC), but is prohibitively expensive, time-consuming and technically-demanding. Diffuse reflectance mid-infrared (MIR) spectroscopy is an attractive alternative because it is a high-throughput, cost-effective and easy-to-use technique that provides information on the amount and nature of soil mineral and organic components. However, interpretation of complex MIR spectra can be challenging due to difficulties with distinguishing SOC peaks from overlapping mineral-related peaks. We present a novel approach to predict the entire NMR spectra of SOC from correspon..