R e s t e k
PriorReportedAnalyses
•
GC-HRMS
–
Difficulty elutingnona’s and decaBDEdue tohighmolecular
weight
–
On-column injection required tominimizemolecularweight
discrimination
• May requiremoremaintenance and cleaner sample extracts than hot
flash techniques.
–
Column bleed levels hurt sensitivity of higher bromination level
congeners
–
Often done using two columns:
• Longer column to separate lower bromination level congeners
• Short column to analyze nona and decaBDE’s
