@article{fdi:010096519,
  title = {{F}urther adjustments to the {R}ock-{E}val® thermal analysis for soil organic and inorganic carbon quantification to avoid post-hoc corrections},
  author = {{H}azera, {J}. and {S}ebag, {D}. and {K}owalewski, {I}. and {R}avelojaona, {H}. and {V}errecchia, {E}. and {J}akab, {G}. and {Z}acháry, {D}. and {S}chneider, {F}. and {T}rombino, {L}. and {M}anlay, {R}. {J}. and {F}ouch{\'e}, {J}. and {C}hevallier, {T}iphaine},
  editor = {},
  language = {{ENG}},
  abstract = {{A}ccurate quantifications of soil organic ({SOC}) and inorganic ({SIC}) carbon are essential for a better understanding of the global carbon cycle. {T}he procedures usually used to quantify {SOC} and {SIC} (e.g., elemental analysis ({EA}) after pretreatment) rely on various approximations and can lead to analytical errors. {R}amped thermal analyses are increasingly investigated to quantify {SOC} and {SIC} by heating a single aliquot and continuously measuring the carbonaceous compounds emitted. {T}he {R}ock-{E}val ({R}) thermal analysis ({RE}) has been standardized to estimate organic and inorganic {C} contents of oil-bearing rocks through two parameters named {TOC} and {MINC}, respectively. {M}oreover, its pyrolysis phase before the oxidation provides the basis for calculating indices to characterize soil organic matter ({OM}). {H}owever, statistical post-hoc corrections of {TOC} and {MINC} are needed to adjust their estimations of {SOC} and {SIC} contents because {SOC} and {SIC} decomposition signals overlap at the end of the pyrolysis. {A} new cycle with a final pyrolysis temperature of 520 degrees {C} ({PYRO}520) instead of 650 degrees {C} is investigated to avoid {SIC} decomposition while preserving {OM} characterization during pyrolysis. {T}he results are compared to the quantifications obtained with the standard analysis cycle ({PYRO}650) and by {EA} after pretreatments. {T}he {PYRO}520 cycle corrects the misallocation of the end-of-pyrolysis signals between the {TOC} and {MINC} parameters and thus accurately and repeatably estimated {SOC} and {SIC} contents measured by {EA} after pretreatments without needing post-hoc corrections. {M}oreover, the values and interpretations of the indices characterizing {OM} are not drastically modified by the pyrolysis modification.},
  keywords = {},
  booktitle = {},
  journal = {{B}iogeosciences},
  volume = {23},
  numero = {5},
  pages = {1881--1895},
  ISSN = {1726-4170},
  year = {2026},
  DOI = {10.5194/bg-23-1881-2026},
  URL = {https://www.documentation.ird.fr/hor/fdi:010096519},
}