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3
Results and Discussion
Method Productivity & Performance
The goal of the developed method was to decrease the
total work required by the laboratory for the analyses of
so many compounds. For this entire list of compounds to
be analyzed effectively, the TRACE 1310 GC and
TG-XLBMS column were used to optimize the
chromatographic separation of critical isomer pairs.
The chromatographic performance was such that all
compounds eluted within 17 minutes. The same separations
were observed after more than 100 injections of water,
soil, and building material extracts.
b
e
c
f
a
d
Same compounds 100
injections later
Figure 2: Chromatograms of several critical separations in a standard at 2000 pg absolute injection; except for benzo(b) and (k)
fluoranthene that are depicted in building material with a concentration of 400 pg
a: phenanthrene and anthracene
b: chrysene and benzo(a)anthracene
c: benzo(b) and benzo(k)fluroanthene
d: indeno (1,2,3,c,d)pyrene and dibenzo(a,h) anthracene
e: o,p DDD and p,p DDT
f: benzo(b) and benzo(k)fluoranthene in building material
after 100 injections of samples