TY - JOUR A1 - Currie, L. A. A1 - Kessler, J. D. T1 - On the isolation of elemental carbon (EC) for micro-molar 14C accelerator mass spectrometry: development of a hybrid reference material for 14C-EC accuracy assurance, and a critical evaluation of the thermal optical kinetic (TOK) EC isolation procedure JO - Atmos. Chem. Phys. J1 - ACP VL - 5 IS - 10 SP - 2833 EP - 2845 Y1 - 2005/10/31 PB - Copernicus Publications SN - 1680-7316 UR - http://www.atmos-chem-phys.net/5/2833/2005/ L1 - http://www.atmos-chem-phys.net/5/2833/2005/acp-5-2833-2005.pdf ER -