Combination of X-ray photoelectron and solid-state 13C nuclear magnetic resonance spectroscopy in the structural characterisation of humic acids

APPLICATIONS OF NMR TO SOIL ORGANIC MATTER ANALYSIS: HISTORY AND PROSPECTS

Caroline M. Preston · Soil Science · 1996 · 507 citations

Agriculture, Plant Sciences, Soil Sciences +16

Aromaticity of Humic Substances in Soils

Patrick G. Hatcher, M. Schnitzer, L.W. Dennis et al. · Soil Science Society of America Journal · 1981 · 302 citations

Agriculture, Chemistry, Soil Sciences +13

Determination of Acidity in Soil Organic Matter

M. Schnitzer, Umesh Gupta · Soil Science Society of America Journal · 1965 · 286 citations

Agriculture, Chemistry, Soil Sciences +17

Analysis of Humic Acids by Solution and Solid‐state Carbon‐13 Nuclear Magnetic Resonance

M. Schnitzer, Caroline M. Preston · Soil Science Society of America Journal · 1986 · 177 citations

Natural Sciences, Biochemistry, Chemistry +13

ANALYSIS OF CARBOXYL GROUPS IN SOIL HUMIC ACIDS BY A WET CHEMICAL METHOD, FOURIER-TRANSFORM INFRARED SPECTROPHOTOMETRY, AND SOLUTION-STATE CARBON-13 NUCLEAR MAGNETIC RESONANCE. A COMPARATIVE STUDY

Luisella Celi, M. Schnitzer, Michéle Nègre · Soil Science · 1997 · 176 citations

Agriculture, Chemistry, Soil Sciences +11