Expected Performance
Sample: 1µL 100ppm BTEX
Plus dissolved in 10mL of
water toyield10ppbBTEXPlus
ThefollowingtwosetsofchromatogramsarefromanEnvironmentalGCsystemequippedwithaMethod
5030compliantPurge&Trap, aPIDdetector, andaFID/DELCDcombinationdetector. First, a10ppb
BTEXPlussamplewasanalyzedusing the5030event tableon the
GeneralOperatingProcedures
pageand
the
Epap&t.tem
temperaturefile. Second,awaterblankwasrunthroughthesystemunderidenticalconditions
toshow thecomponentcarry-over levelof thePurge&Trapsystem. Toluene isusedasarepresentativeof the
carryover in the Purge&Trap system; if the carryover level of Toluene is 0.5ppb or less on the PID
chromatogram, then itwillnotaffectsubsequentanalyses. NOTE:TheTCEghostpeaks in thewaterblank
chromatogramsareaugmentedorcausedbyourfactory test laboratorycontamination.
Sample: clean water blank
(NOTE: the chromatograms are
magnified for carryover visibility)
FIDResults:
Component
Retention Area
Solvent
10.616 921.0990
Benzene 15.033 1019.9260
TCE
15.883 441.8700
Toluene
17.683 1195.3320
PCE
18.700 383.3770
Ethyl Benzene 20.016 1247.3420
Ortho Xylene 20.800 1258.9260
Bromoform 21.166 78.9360
Total
6546.8080
INJECTORS
Purge & Trap
DELCDResults:
Component
Retention Area
TCE
15.883 192.1020
PCE
18.683 209.2260
Bromoform 21.150 126.2820
Total
527.6100
PIDResults:
Component
Retention Area
Benzene 15.016 311.1630
TCE
15.866 258.4360
Toluene
17.666 353.2160
PCE
18.683 233.4780
Ethyl Benzene 20.000 343.9640
Ortho Xylene 20.783 350.7040
Bromoform 21.133 32.3470
Total 1883.3080
DELCDResults:
Component
Retention Area
TCE
15.750 46.0340
FIDResults:
Component
Retention Area
TCE
15.766 58.9100
Toluene
17.566 17.4000
Ethyl Benzene 20.033 51.9080
Ortho Xylene 20.833 91.5290
Total 219.7470
PIDResults:
Component
Retention Area
TCE
15.750 58.1920
Toluene
17.533 4.3400
Ortho Xylene 20.850 20.8720
Total 609.1300
