Application of Combustion Module Coupled with Cavity Ring-Down Spectroscopy for Simultaneous Measurement of SOC and δ13C-SOC
Quantifying the decomposition of soil organic carbon (SOC) fractions under climate change is essential to predict carbon-climate feedbacks. The accuracy and utility of a combustion module coupled with cavity ring-down spectroscopy (CM-CRDS) system were assessed for simultaneously determining SOC and...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2018/6893454 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832550028394102784 |
|---|---|
| author | Dan Liu Zhiguo Yu Junjie Lin |
| author_facet | Dan Liu Zhiguo Yu Junjie Lin |
| author_sort | Dan Liu |
| collection | DOAJ |
| description | Quantifying the decomposition of soil organic carbon (SOC) fractions under climate change is essential to predict carbon-climate feedbacks. The accuracy and utility of a combustion module coupled with cavity ring-down spectroscopy (CM-CRDS) system were assessed for simultaneously determining SOC and δ13C-SOC. Using a range of standard materials as well as soil samples, we compared the results of the CM-CRDS system with those from other systems for determining C content and δ13C value. The CM-CRDS system can determine a vast range of δ13C values from −7.639‰ to −34.318‰. The δ13C values measured at C content > 0.2 mg C, corresponding to 1000 ppmv of CO2, were relatively stable. However, below a content of 0.2 mg C, the δ13C values appeared unsteady and seemed to be affected by background signal. We found that, with the increase of C content, the recovery rates (RRs) for soil samples also increased. On the contrary, the RRs for inorganic materials were much lower than organic material and soil samples. Overall, the CM-CRDS system provides a valid alternative method to determine SOC and δ13C-SOC for a sample simultaneously. |
| format | Article |
| id | doaj-art-bccc8415e37e4f55aa787e87dec7aae2 |
| institution | Kabale University |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-bccc8415e37e4f55aa787e87dec7aae22025-02-03T06:08:04ZengWileyJournal of Spectroscopy2314-49202314-49392018-01-01201810.1155/2018/68934546893454Application of Combustion Module Coupled with Cavity Ring-Down Spectroscopy for Simultaneous Measurement of SOC and δ13C-SOCDan Liu0Zhiguo Yu1Junjie Lin2Department of Agricultural and Forestry Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404000, ChinaSchool of Hydrology and Water Resources, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaKey Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir, Chongqing Three Gorges University, Chongqing 404100, ChinaQuantifying the decomposition of soil organic carbon (SOC) fractions under climate change is essential to predict carbon-climate feedbacks. The accuracy and utility of a combustion module coupled with cavity ring-down spectroscopy (CM-CRDS) system were assessed for simultaneously determining SOC and δ13C-SOC. Using a range of standard materials as well as soil samples, we compared the results of the CM-CRDS system with those from other systems for determining C content and δ13C value. The CM-CRDS system can determine a vast range of δ13C values from −7.639‰ to −34.318‰. The δ13C values measured at C content > 0.2 mg C, corresponding to 1000 ppmv of CO2, were relatively stable. However, below a content of 0.2 mg C, the δ13C values appeared unsteady and seemed to be affected by background signal. We found that, with the increase of C content, the recovery rates (RRs) for soil samples also increased. On the contrary, the RRs for inorganic materials were much lower than organic material and soil samples. Overall, the CM-CRDS system provides a valid alternative method to determine SOC and δ13C-SOC for a sample simultaneously.http://dx.doi.org/10.1155/2018/6893454 |
| spellingShingle | Dan Liu Zhiguo Yu Junjie Lin Application of Combustion Module Coupled with Cavity Ring-Down Spectroscopy for Simultaneous Measurement of SOC and δ13C-SOC Journal of Spectroscopy |
| title | Application of Combustion Module Coupled with Cavity Ring-Down Spectroscopy for Simultaneous Measurement of SOC and δ13C-SOC |
| title_full | Application of Combustion Module Coupled with Cavity Ring-Down Spectroscopy for Simultaneous Measurement of SOC and δ13C-SOC |
| title_fullStr | Application of Combustion Module Coupled with Cavity Ring-Down Spectroscopy for Simultaneous Measurement of SOC and δ13C-SOC |
| title_full_unstemmed | Application of Combustion Module Coupled with Cavity Ring-Down Spectroscopy for Simultaneous Measurement of SOC and δ13C-SOC |
| title_short | Application of Combustion Module Coupled with Cavity Ring-Down Spectroscopy for Simultaneous Measurement of SOC and δ13C-SOC |
| title_sort | application of combustion module coupled with cavity ring down spectroscopy for simultaneous measurement of soc and δ13c soc |
| url | http://dx.doi.org/10.1155/2018/6893454 |
| work_keys_str_mv | AT danliu applicationofcombustionmodulecoupledwithcavityringdownspectroscopyforsimultaneousmeasurementofsocandd13csoc AT zhiguoyu applicationofcombustionmodulecoupledwithcavityringdownspectroscopyforsimultaneousmeasurementofsocandd13csoc AT junjielin applicationofcombustionmodulecoupledwithcavityringdownspectroscopyforsimultaneousmeasurementofsocandd13csoc |