IPY: Halogen Chemistry and Ocean-Atmosphere-Sea Ice-Snowpack (OASIS) Chemical Exchange During IPY

PI:  Paul B. Shepson

Paul Shepson,
Department of Chemistry,
Purdue University,
560 Oval Dr.,
West Lafayette, IN 47907  
Email: pshepson@purdue.edu
Phone: 765-494-5207 

http://www.chem.purdue.edu/shepson/

Goals:

Our goal is to conduct measurements of BrO and ClO, and relate those measurements to snow surface measurements of Cl-, Br-, (and I-).

Measurement technique.

For BrO and ClO, we react these radicals with NO and trifluoropropene in a flow tube, and convert the radicals into the trifluorohaloacetone, which is separated and detected by GC/ECD.  We will measure Cl- and Br- by IC, and I- by ICPMS.

For more info see:  http://www.chem.purdue.edu/shepson/Website Oasis 2009.htm