currently using tracor 540; supelco spb-1,30m x.25; makeup = N2 ;carrier = He; ECD temp 290; peak simple 3 software. trying to "see" 0.02ppb of EDB, DBCP, & 1,2,3-trichloropropane.
response is about 5x lower for 1,2,3-TCP relative to EDB. Have experimented with make-up and carrier flows as well as detector temp. are these concentrations possible with this instrument
how to optimize conditions?
thanks in advance for any suggestions, TMD
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