Novel method rapidly measures carbon isotopes in marine dissolved organic carbon, indicating a shift towards efficient environmental analysis.
C precision of ∼1.0‰. A measurement deviation of less than 0.336‰ was achieved using an empirical correction model developed to correct concentration-dependent isotopic bias. By demonstrating its rapidness, precision, and portability, this laser absorption spectroscopy-based method establishes a novel approach for high-throughput and field-deployable DOC carbon isotope analysis.
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Zhang et al. (2026) studied this question.
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