TY  - JOUR
AU  - Fisseha, R.
AU  - Saurer, M.
AU  - Jäggi, M.
AU  - Szidat, S.
AU  - Siegwolf, R. T. W.
AU  - Baltensperger, U.
TI  - Determination of stable carbon isotopes of organic acids and carbonaceous aerosols in the atmosphere
JO  - Rapid communications in mass spectrometry
VL  - 20
SN  - 0951-4198
CY  - New York, NY
PB  - Wiley Interscience
M1  - PreJuSER-55987
SP  - 2343 - 2347
PY  - 2006
N1  - Record converted from VDB: 12.11.2012
AB  - A wet oxidation method for the compound-specific determination of stable carbon isotopes (delta(13)C) of organic acids in the gas and aerosol phase, as well as of water-soluble organic carbon (WSOC), is presented. Sampling of the organic acids was done using a wet effluent diffusion denuder/aerosol collector (WEDD/AC) coupled to an ion chromatography (IC) system. The method allows for compound-specific stable carbon isotope analysis by collecting different fractions of organic acids at the end of the IC system using a fraction collector. delta(13)C analyses of organic acids were conducted by oxidizing the organic acids with sodium persulfate at a temperature of 100 degrees C and determining the delta(13)C value of the resulting carbon dioxide (CO(2)) with an isotope ratio mass spectrometer. In addition, analysis of delta(13)C of the WSOC was performed for particulate carbon collected on aerosol filters. The WSOC was extracted from the filters using ultrapure water (MQ water), and the dissolved organic carbon was oxidized to CO(2) using the oxidation method. The wet oxidation method has an accuracy of 0.5 per thousand with a precision of +/-0.4 per thousand and provides a quantitative result for organic carbon with a detection limit of 150 ng of carbon.
KW  - Acids: chemistry
KW  - Aerosols: analysis
KW  - Atmosphere: chemistry
KW  - Carbon: analysis
KW  - Carbon Dioxide: analysis
KW  - Carbon Isotopes: analysis
KW  - Environmental Monitoring: methods
KW  - Gas Chromatography-Mass Spectrometry: methods
KW  - Organic Chemicals: analysis
KW  - Acids (NLM Chemicals)
KW  - Aerosols (NLM Chemicals)
KW  - Carbon Isotopes (NLM Chemicals)
KW  - Organic Chemicals (NLM Chemicals)
KW  - Carbon Dioxide (NLM Chemicals)
KW  - Carbon (NLM Chemicals)
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
C6  - pmid:16921534
UR  - <Go to ISI:>//WOS:000239734700014
DO  - DOI:10.1002/rcm.2586
UR  - https://juser.fz-juelich.de/record/55987
ER  -